RESUMEN
Sexual dysfunction is common in patients with Parkinson's disease (PD) since brain dopaminergic mechanisms are involved in the regulation of sexual behavior. Activation of dopamine D2 receptor sites, with resultant release of oxytocin from the paraventricular nucleus (PVN) of the hypothalamus, induces sexual arousal and erectile responses in experimental animals and humans. In Parkinsonian patients subcutaneous administration of apomorphine, a dopamine D2 receptor agonist, induces sexual arousal and penile erections. It has been suggested that the therapeutic efficacy of transcranial administration of AC pulsed electromagnetic fields (EMFs) in the picotesla flux density in PD involves the activation of dopamine D2 receptor sites which are the principal site of action of dopaminergic pharmacotherapy in PD. Here, 1 report 2 elderly male PD patients who experienced sexual dysfunction which was recalcitrant to treatment with anti Parkinsonian agents including selegiline, levodopa and tolcapone. However, brief transcranial administrations of AC pulsed EMFs in the picotesla flux density induced in these patients sexual arousal and spontaneous nocturnal erections. These findings support the notion that central activation of dopamine D2 receptor sites is associated with the therapeutic efficacy of AC pulsed EMFs in PD. In addition, since the right hemisphere is dominant for sexual activity, partly because of a dopaminergic bias of this hemisphere, these findings suggest that right hemispheric activation in response to administration of AC pulsed EMFs was associated in these patient with improved sexual functions.
Asunto(s)
Terapia por Estimulación Eléctrica , Disfunción Eréctil/etiología , Disfunción Eréctil/terapia , Enfermedad de Parkinson/complicaciones , Anciano , Corteza Cerebral/química , Corteza Cerebral/fisiología , Campos Electromagnéticos , Lateralidad Funcional , Humanos , Masculino , Receptores de Dopamina D2/fisiología , BostezoRESUMEN
The Draw-a-Bicycle Test is employed in neuropsychological testing of cognitive skills since the bicycle design is widely known and also because of its complex structure. The Draw-a-Bicycle Test has been administered routinely to patients with Parkinson's disease (PD) and other neurodegenerative disorders to evaluate the effect of transcranial applications of AC pulsed electromagnetic fields (EMFs) in the picotesla flux density on visuoconstructional skills. A seminal observation is reported in 5 medicated PD patients who demonstrated reversal of spontaneous drawing direction of the bicycle after they received a series of transcranial treatments with AC pulsed EMFs. In 3 patients reversal of the bicycle drawing direction was observed shortly after the administration of pulsed EMFs while in 2 patients these changes were observed within a time lag ranging from several weeks to months. All patients also demonstrated a dramatic clinical response to the administration of EMFs. These findings are intriguing because changes in drawing direction do not occur spontaneously in normal individuals as a result of relateralization of cognitive functions. This report suggests that administration of AC pulsed EMFs may induce in some PD patients changes in hemispheric dominance during processing of a visuoconstructional task and that these changes may be predictive of a particularly favourable response to AC pulsed EMFs therapy.
Asunto(s)
Trastornos del Conocimiento/fisiopatología , Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Pruebas Neuropsicológicas , Enfermedad de Parkinson/fisiopatología , Desempeño Psicomotor/efectos de la radiación , Conducta Espacial/efectos de la radiación , Adulto , Anciano , Arte , Trastornos del Conocimiento/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedad de Parkinson/psicología , Enfermedad de Parkinson/terapiaRESUMEN
Sleep paralysis refers to episodes of inability to move during the onset of sleep or more commonly upon awakening. Patients often describe the sensation of struggling to move and may experience simultaneous frightening vivid hallucinations and dreams. Sleep paralysis and other manifestations of dissociated states of wakefulness and sleep, which reflect deficient monoaminergic regulation of neural modulators of REM sleep, have been reported in patients with multiple sclerosis (MS). A 40 year old woman with remitting-progressive multiple sclerosis (MS) experienced episodes of sleep paralysis since the age of 16, four years prior to the onset of her neurological symptoms. Episodes of sleep paralysis, which manifested at a frequency of about once a week, occurred only upon awakening in the morning and were considered by the patient as a most terrifying experience. Periods of mental stress, sleep deprivation, physical fatigue and exacerbation of MS symptoms appeared to enhance the occurrence of sleep paralysis. In July of 1992 the patient began experimental treatment with AC pulsed applications of picotesla intensity electromagnetic fields (EMFs) of 5Hz frequency which were applied extracerebrally 1-2 times per week. During the course of treatment with EMFs the patient made a dramatic recovery of symptoms with improvement in vision, mobility, balance, bladder control, fatigue and short term memory. In addition, her baseline pattern reversal visual evoked potential studies, which showed abnormally prolonged latencies in both eyes, normalized 3 weeks after the initiation of magnetic therapy and remained normal more than 2.5 years later. Since the introduction of magnetic therapy episodes of sleep paralysis gradually diminished and abated completely over the past 3 years. This report suggests that MS may be associated with deficient REM sleep inhibitory neural mechanisms leading to sleep paralysis secondary to the intrusion of REM sleep atonia and dream imagery into the waking state. Pineal melatonin and monoaminergic neurons have been implicated in the induction and maintenance of REM sleep and the pathogenesis of sleep paralysis and it is suggested that resolution of sleep paralysis in this patient by AC pulsed applications of EMFs was related to enhancement of melatonin circadian rhythms and cerebral serotoninergic neurotransmission.
Asunto(s)
Campos Electromagnéticos , Esclerosis Múltiple/complicaciones , Parálisis/complicaciones , Parálisis/rehabilitación , Trastornos del Sueño-Vigilia/complicaciones , Adulto , Ritmo Circadiano , Femenino , Humanos , Melatonina/metabolismo , Glándula Pineal/metabolismo , Serotonina/fisiología , Sueño REM , Transmisión Sináptica/fisiologíaRESUMEN
Absent or markedly reduced REM sleep with cessation of dream recall has been documented in numerous neurological disorders associated with subcortical dementia including Parkinson's disease, progressive supranuclear palsy and Huntington's chorea. This report concerns a 69 year old Parkinsonian patient who experienced complete cessation of dreaming since the onset of motor disability 13 years ago. Long term treatment with levodopa and dopamine (DA) receptor agonists (bromocriptine and pergolide mesylate) did not affect dream recall. However, dreaming was restored after the patient received three treatment sessions with AC pulsed picotesla range electromagnetic fields (EMFs) applied extracranially over three successive days. Six months later, during which time the patient received 3 additional treatment sessions with EMFs, he reported dreaming vividly with intense colored visual imagery almost every night with some of the dreams having sexual content. In addition, he began to experience hypnagogic imagery prior to the onset of sleep. Cessation of dream recall has been associated with right hemispheric dysfunction and its restoration by treatment with EMFs points to right hemispheric activation, which is supported by improvement in this patient's visual memory known to be subserved by the right temporal lobe. Moreover, since DA neurons activate REM sleep mechanisms and facilitate dream recall, it appears that application of EMFs enhanced DA activity in the mesolimbic system which has been implicated in dream recall. Also, since administration of pineal melatonin has been reported to induce vivid dreams with intense colored visual imagery in normal subjects and narcoleptic patients, it is suggested that enhanced nocturnal melatonin secretion was associated with restoration of dream recall in this patient. These findings demonstrate that unlike chronic levodopa therapy, intermittent pulsed applications of AC picotesla EMFs may induce in Parkinsonism reactivation of reticular-limbic-pineal systems involved in the generation of dreaming.
Asunto(s)
Sueños/fisiología , Campos Electromagnéticos , Recuerdo Mental/fisiología , Enfermedad de Parkinson/psicología , Anciano , Humanos , Masculino , Pruebas Neuropsicológicas , Enfermedad de Parkinson/terapiaRESUMEN
Multiple sclerosis is the third most common cause of severe disability in patients between the ages of 15 and 50 years. The cause of the disease and its pathogenesis remain unknown. The last 20 years have seen only meager advances in the development of effective treatments for the disease. No specific treatment modality can cure the disease or alter its long-term course and eventual outcome. Moreover, there are no agents or treatments that will restore premorbid neuronal function. A host of biological phenomena associated with the disease involving interactions among genetic, environmental, immunologic, and hormonal factors, cannot be explained on the basis of demyelination alone and therefore require refocusing attention on alternative explanations, one of which implicates the pineal gland as pivotal. The pineal gland functions as a magnetoreceptor organ. This biological property of the gland provided the impetus for the development of a novel and highly effective therapeutic modality, which involves transcranial applications of alternating current (AC) pulsed electromagnetic fields in the picotesla flux density. This review summarizes recent clinical work on the effects of transcranially applied pulsed electromagnetic fields for the symptomatic treatment of the disease.
Asunto(s)
Esclerosis Múltiple/terapia , Adulto , Enfermedad Crónica , Fenómenos Electromagnéticos/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del TratamientoRESUMEN
Despite intensive research over the past several decades, the etiology and pathogenesis of multiple sclerosis (MS) remain elusive. The last 20 years have seen only meager advances in the treatment of the disease in part because too much attention has been devoted to the process of demyelination and its relationship to the neurologic symptoms and recovery of the disease. A host of biological phenomena associated with the disease involving interactions among genetic, environmental, immunologic, and hormonal factors, cannot be explained on the basis of demyelination and, therefore, require refocusing attention on alternative explanations, one of which implicates the pineal gland as the pivotal mover of the disease. This review summarizes the evidence linking dysfunction of the pineal gland with the epidemiology, pathogenesis, clinical manifestations, and course of the disease. The pineal hypothesis of MS also provided the impetus for the development of a novel and highly effective therapeutic modality, one that involves the transcranial application of AC pulsed electromagnetic fields in the picotesla flux density.
Asunto(s)
Enfermedades del Sistema Endocrino/complicaciones , Esclerosis Múltiple/etiología , Glándula Pineal , Adolescente , Adulto , Edad de Inicio , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modelos Biológicos , Esclerosis Múltiple/epidemiología , Esclerosis Múltiple/fisiopatología , Periodicidad , Glándula Pineal/inmunología , Glándula Pineal/metabolismo , Glándula Pineal/fisiopatología , EmbarazoRESUMEN
A 52 year old fully medicated physician with juvenile onset Parkinsonism experienced 4 years ago severe "on-off" fluctuations in motor disability and debilitating speech impairment with severe stuttering which occurred predominantly during "on-off" periods. His speech impairment improved 20%-30% when sertraline (75 mg/day), a serotonin reuptake inhibitor, was added to his dopaminergic medications which included levodopa, amantadine, selegiline and pergolide mesylate. A more dramatic and consistent improvement in his speech occurred over the past 4 years during which time the patient received, on a fairly regular basis, weekly transcranial treatments with AC pulsed electromagnetic fields (EMFs) of picotesla flux density. Recurrence of speech impairment was observed on several occasions when regular treatments with EMFs were temporarily discontinued. These findings demonstrate that AC pulsed applications of picotesla flux density EMFs may offer a nonpharmacologic approach to the management of speech disturbances in Parkinsonism. Furthermore, this case implicates cerebral serotonergic deficiency in the pathogenesis of Parkinsonian speech impairment which affects more than 50% of patients. It is believed that pulsed applications of EMFs improved this patient's speech impairment through the facilitation of serotonergic transmission which may have occurred in part through a synergistic interaction with sertraline.
Asunto(s)
Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Enfermedad de Parkinson/complicaciones , Tartamudeo/etiología , Tartamudeo/terapia , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Multiple sclerosis (MS) is associated with an increased risk of falling resulting from visual disturbances, difficulties with gait and balance, apraxia of gait and peripheral neuropathy. These factors often interact synergistically to compromise the patient's gait stability. It has long been recognized that walking involves a cognitive component and that simultaneous cognitive and motor operations (dual-task) such as talking while walking may interfere with normal ambulation. Talking while walking reflects an example of a dual-task which is frequently impaired in MS patients. Impaired dual-task performance during walking may compromise the patient's gait and explain why in some circumstances, MS patients unexpectedly lose their balance and fall. Frontal lobe dysfunction, which commonly occurs in MS patients, may disrupt dual-task performance and increase the risk of falling in these patients. This report concerns a 36 old man with remitting-progressive MS with an EDSS score of 5.5 who experienced marked increase in spasticity in the legs and trunk and worsening of his gait and balance, occasionally resulting in falling, when talking while walking. His gait and balance improved dramatically after he received two successive transcranial treatments, each of 45 minutes, with AC pulsed electromagnetic fields (EMFs) of 7.5 picotesla flux density. Simultaneously, there was improvement in dual-task performance to the extent that talking while walking did not adversely affect his ambulation. In addition, neuropsychological testing revealed an almost 5-fold increase in word output on the Thurstone's Word-Fluency Test, which is sensitive to frontal lobe dysfunction. It is suggested that facilitation of dual-task performance during ambulation contributes to the overall improvement of gait and balance observed in MS patients receiving transcranial treatment with AC pulsed EMFs.
Asunto(s)
Apraxias/terapia , Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Esclerosis Múltiple/terapia , Adulto , Lóbulo Frontal/fisiopatología , Marcha , Humanos , Masculino , Destreza Motora , Esclerosis Múltiple/fisiopatología , Habla , Conducta Verbal , EscrituraRESUMEN
A 73 year old right-handed man, diagnosed with Parkinson's disease (PD) in 1982, presented with chief complaints of disabling resting and postural tremors in the right hand, generalized bradykinesia and rigidity, difficulties with the initiation of gait, freezing of gait, and mild dementia despite being fully medicated. On neuropsychological testing the Bicycle Drawing Test showed cognitive impairment compatible with bitemporal and frontal lobe dysfunction and on attempts to sign his name he exhibited agraphia. After receiving two successive treatments, each of 20 minutes duration, with AC pulsed electromagnetic fields (EMFs) of 7.5 picotesla intensity and 5 Hz frequency sinusoidal wave, his drawing to command showed improvement in visuospatial performance and his signature became legible. One week later, after receiving two additional successive treatments with these EMFs each of 20 minutes duration with a 7 Hz frequency sinusoidal wave, he drew a much larger, detailed and visuospatially organized bicycle and his signature had normalized. Simultaneously, there was marked improvement in Parkinsonian motor symptoms with almost complete resolution of the tremors, start hesitation and freezing of gait. This case demonstrates the dramatic beneficial effects of AC pulsed picotesla EMFs on neurocognitive processes subserved by the temporal and frontal lobes in Parkinsonism and suggest that the dementia of Parkinsonism may be partly reversible.
Asunto(s)
Agrafia/terapia , Campos Electromagnéticos , Magnetismo/uso terapéutico , Enfermedad de Parkinson/terapia , Desempeño Psicomotor/efectos de la radiación , Conducta Espacial/efectos de la radiación , Percepción Visual/efectos de la radiación , Anciano , Agrafia/etiología , Antiparkinsonianos/uso terapéutico , Terapia Combinada , Marcha/efectos de la radiación , Humanos , Masculino , Pruebas Neuropsicológicas , Enfermedad de Parkinson/complicaciones , Enfermedad de Parkinson/tratamiento farmacológico , Enfermedad de Parkinson/psicología , Temblor/etiología , Temblor/radioterapiaAsunto(s)
Envejecimiento/fisiología , Melatonina/uso terapéutico , Anciano , Animales , Ritmo Circadiano/efectos de los fármacos , Depresión/inducido químicamente , Campos Electromagnéticos , Retroalimentación , Humanos , Melatonina/efectos adversos , Melatonina/deficiencia , Melatonina/metabolismo , Ratones , Persona de Mediana Edad , Glándula Pineal/metabolismo , Tasa de Secreción/efectos de la radiación , Trastornos del Sueño-Vigilia/tratamiento farmacológico , Trastornos del Sueño-Vigilia/fisiopatología , Luz SolarRESUMEN
It has been suspected that hormonal factors contribute to the etiology and pathogenesis of multiple sclerosis (MS). A direct relationship between MS and endocrine functions is suggested by changes in disease activity during the phases of the menstrual cycle. A subset of women with MS experience premenstrual worsening of symptoms which improve dramatically with the onset of menstruation. The biological mechanisms underlying these changes in disease activity are unexplained but may be related to cyclical fluctuations in gonadal sex steroid hormones, abrupt changes in the activity of the endogenous opioid peptides and fluctuations in plasma melatonin levels which affect neuronal excitability and immune functions. Extracerebral application of weak electromagnetic fields (EMFs) in the picotesla range intensity has been reported efficacious in the treatment of MS with patients experiencing sustained improvement in motor, sensory, autonomic, affective and cognitive functions. The present report concerns two women with chronic progressive stage MS who experienced, coincident with increasing functional disability, regular worsening of their symptoms beginning about a week before menstruation and abating with the onset of menstruation. These symptoms resolved two months after the initiation of treatment with EMFs. The report supports the association between the endocrine system and MS and indicates that brief, extracranial applications of these magnetic fields modifies the activity of neuroendocrine systems which precipitate worsening of MS symptoms premenstrually.
Asunto(s)
Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Esclerosis Múltiple/fisiopatología , Esclerosis Múltiple/terapia , Síndrome Premenstrual/fisiopatología , Síndrome Premenstrual/terapia , Adulto , Femenino , Humanos , Persona de Mediana EdadRESUMEN
The occurrence of cognitive impairment including visuoperceptive and visuospatial deficits have long been recognized to occur in patients with multiple sclerosis (MS) particularly among patients with a chronic progressive course. In MS visuospatial and visuoperceptive deficits have been attributed to the presence of diffuse demyelinating plaques which "disconnect" the brainstem reticular formation and other subcortical structures involved in attention and arousal from cortical areas thus causing a state of hypoarousal. It has been reported recently that brief external applications of alternating pulsed electromagnetic fields (EMFs) in the picotesla (pT) range intensity improved visuoperceptive and visuospatial functions in MS patients. The present communication concerns three female patients with chronic progressive course of MS (mean age: 52.3 +/- 2.0 yrs; mean duration of illness: 17.6 +/- 10.2 yrs) who, on tests of free drawings, demonstrated visuospatial hemi-inattention as a feature of more global cognitive deterioration. In all patients brief applications of EMFs rapidly reversed this cognitive deficit. These findings support prior observations demonstrating that pT EMFs may bring about reversal of certain cognitive deficits in MS patients which, to my knowledge, remain unaffected by any other treatment modality.
Asunto(s)
Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Esclerosis Múltiple/fisiopatología , Esclerosis Múltiple/terapia , Percepción Espacial/fisiología , Percepción Visual/fisiología , Atención , Enfermedad Crónica , Femenino , Humanos , Imagen por Resonancia Magnética , Persona de Mediana Edad , Esclerosis Múltiple/diagnósticoRESUMEN
It has been estimated that about 75% of patients diagnosed with multiple sclerosis (MS) have tremor which can be exceedingly disabling. The most common tremor observed in patients with MS is a cerebellar intention tremor ('kinetic tremor') although postural tremor ('static tremor') is also common and often extremely incapacitating. Currently there is no effective medical treatment for the tremor of MS which, in some severe cases, may be abolished by stereotactic thalamotomy. It was reported recently that extracranial application of brief AC pulsed electromagnetic fields (EMFs) in the picotesla (pT) range produced improvement in motor and cognitive functions in patients with MS. The present communication concerns three MS patients with a chronic progressive course of the disease (mean age: 39.3 +/- 8.3 years; mean duration of illness: 11.3 +/- 3.2 years) in whom brief external applications of pulsed EMFs of 7.5 pT intensity reduced intention and postural tremors resulting in significant functional improvement. The report suggests that these extremely low intensity EMFs are beneficial also in the treatment of tremors in MS and that this treatment may serve as an alternative method to stereotactic thalamotomy in the management of tremor in MS. The mechanisms by which EMFs attenuate the tremors of MS are complex and are thought to involve augmentation of GABA and serotonin (5-HT) neurotransmission in the cerebellum and its outflow tracts.
Asunto(s)
Terapia por Estimulación Eléctrica , Campos Electromagnéticos , Esclerosis Múltiple/complicaciones , Temblor/etiología , Temblor/terapia , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Actividad Motora/fisiología , Resultado del Tratamiento , Temblor/fisiopatologíaRESUMEN
The occurrence of cognitive deficits in patients with multiple sclerosis (MS) has been recognized since 1877 when Charcot first observed "enfeeblement of memory" in his patients and subsequently Gowers (1893) described "failure of memory." The presence of cognitive deficits in MS may be a major cause of disability which is often severe enough to preclude employment. Impairment of memory including visual memory is one of the most common features of the dementia of MS and may be evident in early stages of the disease. Disturbances of visuospatial and visuomotor functions are also commonly encountered in MS patients reflecting the multiplicity of lesion sites in the disease. Recently, I have reported that treatment with magnetic fields (MF) in the picoTesla range is an efficacious modality in the management of MS and have demonstrated improvement in visuospatial functions with this treatment modality. In the present communication I present four additional patients with MS in whom application of these extremely weak MF produced an improvement in visual memory as well as visuospatial and visuomotor functions. The data presented demonstrate the unique efficacy of this treatment modality in reversing some of the cognitive deficits associated with MS.
Asunto(s)
Magnetismo/uso terapéutico , Memoria , Esclerosis Múltiple/terapia , Percepción Visual , Adulto , Encéfalo/fisiopatología , Femenino , Humanos , Imagen por Resonancia Magnética , Memoria/fisiología , Persona de Mediana Edad , Esclerosis Múltiple/diagnóstico , Esclerosis Múltiple/fisiopatología , Percepción Espacial/fisiología , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Percepción Visual/fisiologíaRESUMEN
This communication concerns a 55 year old woman with a 5 year history of chronic progressive multiple sclerosis (MS) in whom a single external application of extremely low magnetic fields (MF) (7.5 picoTesla; 5 Hz frequency) of 20 minutes duration resulted in a rapid improvement in symptoms including vision, cerebellar symptomatology (ataxia and dysarthria), bladder functions, mood, sleep, cognitive functions and fatigue. Improvement in the patient's symptoms was associated with normalization of the pretreatment abnormal visual evoked potential (VEP) latencies within 24 hours after magnetic treatment. The rapid normalization of the VEP latencies suggests that recovery did not occur as a result of remyelination but probably was related to enhancement of neurotransmitter functions. MF have been shown to alter cellular calcium metabolism which may facilitate axonal conduction in demyelinating plaques. Furthermore, as MF affects the release of the pineal gland's principal hormone, melatonin, which influences the release of monoamines, it is also hypothesized that the effects of picoTesla MF in MS are partly mediated by the pineal gland which has recently been implicated in the pathogenesis of MS (Sandyk, 1992 a).
Asunto(s)
Potenciales Evocados Visuales/fisiología , Magnetismo/uso terapéutico , Esclerosis Múltiple/terapia , Encéfalo/fisiopatología , Enfermedad Crónica , Humanos , Imagen por Resonancia Magnética , Melatonina/biosíntesis , Persona de Mediana Edad , Esclerosis Múltiple/fisiopatología , Glándula Pineal/metabolismo , Serotonina/fisiología , Transmisión Sináptica , Resultado del TratamientoRESUMEN
The association between degeneration of the nigrostriatal dopamine (DA) system and the motor manifestations of Parkinson's disease (PD) provided the impetus for the development of DA replacement therapy. However, clinical experience has demonstrated that DA-ergic drugs, while attenuating the motor symptoms of PD, have little or no consistent effect on the mental and cognitive symptoms of the disease which are thought to be related partly to degeneration of the meso-cortico-limbic DA system. Thus, failure of DA-ergic drugs to improve the mental and cognitive deficits of PD indicates that these agents cannot fully restore DA functions in the meso-cortico-limbic circuits. The present communication concerns five fully medicated Parkinsonian patients in whom application of a series of treatments with electromagnetic fields (EMF) of extremely low intensity (in the picotesla range) and frequency (5-8Hz) produced a dramatic improvement in performance on Thurstone's World-Fluency Test, a sensitive marker of frontal lobe functions. These findings suggest that in contrast to DA replacement therapy application of low intensity EMF may improve frontal lobe functions in patients with PD presumably by augmenting DA activity in the mesocortical system. As deficiency of the frontal DA system has been implicated also in the development of akinesia and freezing in PD these observations may explain the beneficial effects of EMF on the motor manifestations of the disease.
Asunto(s)
Campos Electromagnéticos , Enfermedad de Parkinson/terapia , Conducta Verbal , Anciano , Ventrículos Cerebrales/fisiología , Dopamina/deficiencia , Dopamina/metabolismo , Femenino , Lóbulo Frontal/metabolismo , Lóbulo Frontal/fisiopatología , Humanos , Masculino , Melatonina/metabolismo , Persona de Mediana Edad , Enfermedad de Parkinson/metabolismo , Enfermedad de Parkinson/fisiopatología , Glándula Pineal/metabolismo , Glándula Pineal/fisiopatología , Resultado del TratamientoRESUMEN
Impairments in visual memory and visuoconstructive functions commonly occur in patients with Alzheimer's disease (AD). Recently, I reported that external application of electromagnetic fields (EMF) of extremely low intensity (in the picotesla range) and of low frequency (in the range of 5Hz-8Hz) improved visual memory and visuoperceptive functions in patients with Parkinson's disease. Since a subgroup of Parkinsonian patients, specifically those with dementia, have coexisting pathological and clinical features of AD, I investigated in two AD patients the effects of these extremely weak EMF on visual memory and visuoconstructive performance. The Rey-Osterrieth Complex Figure Test as well as sequential drawings from memory of a house, a bicycle, and a man were employed to evaluate the effects of EMF on visual memory and visuoconstructive functions, respectively. In both patients treatment with EMF resulted in a dramatic improvement in visual memory and enhancement of visuoconstructive performance which was associated clinically with improvement in other cognitive functions such as short term memory, calculations, spatial orientation, judgement and reasoning as well as level of energy, social interactions, and mood. The report demonstrates, for the first time, that specific cognitive symptoms of AD are improved by treatment with EMF of a specific intensity and frequency. The rapid improvement in cognitive functions in response to EMF suggests that some of the mental deficits of AD are reversible being caused by a functional (i.e., synaptic transmission) rather than a structural (i.e., neuritic plaques) disruption of neuronal communication in the central nervous system.
Asunto(s)
Enfermedad de Alzheimer/terapia , Magnetismo/uso terapéutico , Memoria , Anciano , Enfermedad de Alzheimer/diagnóstico por imagen , Enfermedad de Alzheimer/fisiopatología , Encéfalo/diagnóstico por imagen , Encéfalo/fisiopatología , Ritmo Circadiano , Cognición , Campos Electromagnéticos , Humanos , Masculino , Melatonina/metabolismo , Persona de Mediana Edad , Destreza Motora , Glándula Pineal/fisiología , Radiografía , Percepción Espacial , Resultado del TratamientoRESUMEN
Disturbances of autonomic nervous functions are common in patients with Parkinson's disease (PD) and may develop as a result of pathological changes in centers of autonomic regulation such as the hypothalamus, brainstem, and sympathetic ganglia. We examined cardiovascular reflexes using bedside, noninvasive procedures in 20 unmedicated PD patients with early stages of the disease (stage 1 and 2 on the Hoehn and Yahr's scale). Sixteen patients (80%) exhibited some degree of autonomic nervous system dysfunction. These included predominantly cardiovascular functions mediated via the parasympathetic system. Our findings demonstrate: (a) a high prevalence of autonomic disturbances in early stage PD, and (b) that dysregulation of parasympathetic cardiovascular control mechanisms is a major feature of dysautonomia in early, unmedicated PD patients.
Asunto(s)
Enfermedades del Sistema Nervioso Autónomo/fisiopatología , Hipotálamo/fisiopatología , Enfermedad de Parkinson/fisiopatología , Anciano , Femenino , Frecuencia Cardíaca , Humanos , Masculino , Persona de Mediana Edad , Postura , Respiración/fisiología , Índice de Severidad de la Enfermedad , Nervio Vago/fisiopatologíaRESUMEN
Visual neglect and impairment in perceptual motor or visuospatial tasks are among the most frequently encountered abnormalities in neuropsychological testing of patients with Parkinson's disease, being present in up to 90% of patients. It has been proposed that neglect reflects an attentional-arousal deficit induced by lesions that interrupt a cortical-limbic-reticular loop. Recently, we have reported that application of extracranial magnetic fields (MF) in the picoTesla range was efficacious in reducing the severity of the motor disability of Parkinsonism as well as improving some of the cognitive abnormalities associated with the disease such as visuoperceptive deficits. We now present a 61 year old fully medicated Parkinsonian patient in whom rapid reversal of left visual neglect as well as improvement in visuoconstructional (drawing) performance was noted immediately after a single external application of MF. We propose that this effect was related to enhancement of directed attention through a mechanism involving an interaction between the pineal gland, which is considered a "magnetosensor," and the reticular formation which mediates arousal and attention. This report demonstrates the efficacy of extremely weak MF in reversing some of the cognitive abnormalities in Parkinsonism, notably neglect and visuoperceptive deficits, which contribute significantly to impairment of the patient's daily living activities.