- Heart Rate Variability and Autonomic Control
- Cardiovascular Syncope and Autonomic Disorders
- Peripheral Neuropathies and Disorders
- Parasitic infections in humans and animals
- Myasthenia Gravis and Thymoma
- Botulinum Toxin and Related Neurological Disorders
- Vestibular and auditory disorders
- Neurology and Historical Studies
- Systemic Lupus Erythematosus Research
- Thermoregulation and physiological responses
- Cerebrospinal fluid and hydrocephalus
- Non-Invasive Vital Sign Monitoring
- Ophthalmology and Eye Disorders
- Psychology Research and Bibliometrics
- Pituitary Gland Disorders and Treatments
- Mitochondrial Function and Pathology
- Parkinson's Disease and Spinal Disorders
- Literary and Cultural Studies
- Prion Diseases and Protein Misfolding
- Medicine and Dermatology Studies History
- Sympathectomy and Hyperhidrosis Treatments
- Psychological Treatments and Disorders
- History of Medicine Studies
- Medical research and treatments
- Multiple Sclerosis Research Studies
Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
2014-2024
Deleted Institution
2023
Universidad Nacional Autónoma de México
1989-2021
Asociación Mexicana de Psicología y Desarrollo Comunitario
2021
Universidad Autónoma de la Ciudad de México
2018
Universidad Vasco de Quiroga
2015
Secretaria de Salud
2012
Dirección de Investigación y Desarrollo
2001-2003
Hospital Psiquiatrico Infantil Juan N Navarro
2003
Universidad Iberoamericana
2002
Homeostasis is one of the key concepts physiology and basis to understand chronic-degenerative disease human ageing, but difficult quantify in clinical practice. The variability time series resulting from continuous non-invasive physiological monitoring conjectured reflect underlying homeostatic regulatory processes, it not clear why some variables such as heart rate gives a favourable health prognosis whereas other blood pressure implies an increased risk factor. purpose present...
Cerebral cysticercosis is a parasitic infestation with highly variable prognosis and diverse clinical manifestations. Over the period of two years 51 patients were studied prospectively this infestation, paying particular attention to duration severity illness, course, CT findings therapeutic modalities. Patients parenchymal cysts or calcification without hydrocephalus had benign disorder presenting commonly seizures. This type usually long-standing, almost never requires surgical treatment,...
Twenty women of child-bearing age with intracranial venous thrombosis are reported. Thirteen developed post-partum; 6 while on oral contraceptives. In one patient no cause was found. All diagnoses were confirmed by carotid angiography and in 10 out 14 patients laboratory data indicated a hypercoagulable state. Coagulation studies performed normal puerperal women, matched age, who served as controls. No statistical differences found between thrombotic control groups. Radiologic signs...
Abstract Patients with hydrocephalus secondary to cerebral cysticercosis are a highly heterogeneous group. The mechanisms of in these patients multiple. Intraventricular cysts may be found the 3rd and 4th ventricles, sylvian aqueduct, foramen Monro. can suspected when ventricles or aqueduct remain enlarged despite shunting. contrast medium demonstrates presence parasites. intraventricular should removed surgically. Hydrocephalus due cisternal diagnosed by isotope cisternography. These...
Diabetes Mellitus (DM) affects the cardiovascular response of patients. To study this effect, interbeat intervals (IBI) and beat-to-beat systolic blood pressure (SBP) variability patients during supine, standing controlled breathing tests were analyzed in time domain. Simultaneous noninvasive measurements IBI SBP for 30 recently diagnosed 15 long-standing DM compared with results rigorously screened healthy subjects (control). A statistically significant distinction between control diabetic...
The myasthenia gravis is twice as common in women men and frequently affects young the second third decades of life, overlapping with childbearing years. Generally, during pregnancy one patients disease exacerbates, whereas two thirds it remains clinically unchanged. Complete remission can occur some patients.To describe clinical course, delivery neonatal outcome 18 pregnant diagnosis gravis. Retrospective chart review gravis, followed at National Institute Perinatology Mexico City over an...
<h3>Background</h3> Mitochondrial cytopathies (MCs) are a heterogeneous group of clinical entities, some which have classic phenotypes. Magnetic resonance imaging (MRI) has been reported to be helpful in the diagnosis MC. <h3>Objective</h3> To correlate most common brain MRI findings patients with MC different subgroups. <h3>Design</h3> Case series. <h3>Setting</h3> Patients MCs seen at Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico....
Fifty-one cases of cerebral cysticercosis proved by surgery or CT scanning were studied prospectively with the ELISA test in order to detect anticysticercous antibodies blood and CSF.The was also performed for detection 20 control patients who had CSF withdrawn during a myelogram 119 serum samples asymptomatic subjects.We found an overall sensitivity 87% specificity 90%.In we 100%.However, when compared benign type malignant 75% group as 93% group.The 80% group.This difference statistically...
<i>Background:</i> The meningitides are rare but well-identified complications in patients with systemic lupus erythematosus (SLE).<i> Aims:</i> To determine the clinical characteristics, risk factors, prevalence and outcomes of (septic aseptic) SLE. <i>Patients Methods:</i> From January 1988 to December 2006, we identified SLE septic or aseptic meningitis. <i>Results:</i> We 25 episodes meningitis 23 SLE, from a total 1,411 (1.63%); 15 out...
This is a review of the clinical presentation and results surgical treatment 25 cases cysticercosis 4th ventricle. All patients presented with hydrocephalus and, after shunting, dilatation ventricle persisted while supratentorial ventricular system returned to its normal size. We propose that, shunt procedure performed, early direct excision parasite should be done. Good or excellent were achieved in 81.4% patients. Associated arachnoiditis vasculitis major causes poor outcomes.
To identify the response to thymectomy in patients with seronegative and seropositive myasthenia gravis (SPMG). We analyzed associated diseases, thymus histology, severity of symptoms between two groups. MATERIAL AND METHODS - DESIGN: Descriptive, comparative.Fourteen (SNMG) 57 SPMG who had a 1987 1997, at least 3 years follow-up. The were divided into four groups; (1) Remission, (2) Improvement, (3) No change (4) Deterioration.Fourteen (20%) (80%). In group SNMG, three remission (21%), five...
Healthy subjects under rhythmic breathing have heart interbeat intervals with a respiratory band in the frequency domain that can be an index of vagal activity. Diabetes Mellitus Type II (DM) affects autonomic nervous system patients, thus it expected changes on Here, influence DM modulation rate is evaluated by analyzing interval (IBI) records obtained from 30 recently diagnosed, 15 long standing and control during standardized clinical tests controlled at 0.1 Hz, supine rest upright....
Predisposition to MS is associated with the HLA-DR2 antigen in white patients. The authors investigated genetic factors behind increasing frequency of Mexican population. HLA-DR and DQ were analyzed 17 patients MS, 15 their first-degree relatives, 99 healthy ethnically matched controls. DR2 or DR3 was found In controls, both alleles had frequencies less than 0.05. DR3.
Background: Latin American medical journals have a low impact factor.Higher quality articles originated in countries are
Subarachnoid hemorrhage (SAH) is a rare complication of systemic lupus erythematosus (SLE).We made retrospective search for patients with SLE and nontraumatic SAH from 1990 to 2006.We found 10 primary total 1,077 (0.93%); mean age onset was 37.4 +/- 15.25 years the duration at 98.3 50.32 months. SLEDAI chronic damage scores were 3.67 5.20 (n = 9) 2.90 1.45 10), respectively; 60% had high Hunt-Hess in only 50% cases saccular aneurysm identified.SAH presents about 1% patients. Long might be...
Diabetes affects approximately 250 million people in the world. Cardiovascular autonomic neuropathy is a common complication of diabetes that leads to severe postural hypotension, exercise intolerance, and increased incidence silent myocardial infarction.To determine variability heart rate (HR) systolic blood pressure (SBP) recently diagnosed diabetic patients.The study included 30 patients with diagnosis type 2 less than years healthy controls. We used Finapres® device measure during five...
To compare the response of thymectomy in patients with associated conditions (PWAC) and without (PWOAC). Comparative, retrospective. 198 established diagnosis myasthenia gravis who had a between 1987 2000, were folowed up for at least 3 years. We formed two groups, one second conditions. The divided into four groups: (i) remission, (ii) improvement, (iii) changes, (iv) whose condition worsened. Associated (AC) found 49 (26%). main hyperthyroidism 16 (33%) hypothyroidism seven (14%),...
Nine patients had a lateral medullary infarction. Examination during the acute phase of lesion to determine oculomotor and oculovestibular functions showed that all hypermetric saccades increased gain vestibulo-ocular reflex (VOR) side hypometric decreased VOR opposite lesion. These abnormalities may be consequence isolation vestibular nuclei from flocculus, with loss saccadic gains by cerebellum.
• A patient wit h a right hemicerebellectomy and recurrence of tumor on the left cerebellar hemisphere was examined regarding oculomotor vestibuloocular functions. The findings were as follows: inability to maintain eccentric gaze; defective smooth pursuit system; failure suppress by visual fixation nystagmus induced sinusoidal horizontal rotations; moderate increase vestibulo-ocular reflex gain when rotated in dark; relative preservation slow phases optokinetic nystagmus, compared tracking...
ABSTRACT BACKGROUND To determine and characterize the prevalence of cerebral changes on MRI in patients with antiphospholipid syndrome (APLS) within systemic lupus erythematosus (SLE). METHODS Seventy‐one SLE were prospectively studied brain MRI: 32 definite APLS 39 without. Atrophy, ventricular enlargement, leukoaraiosis, interuncal distance, Evans' index, infarcts, white matter hyperintensities (WMH) analyzed. Demographic data, treatment, activity RESULTS Groups similar age (32.4 vs. 32.8...
Many difficulties are encountered by clinicians in attempting to diagnose pheochromocytomas. We describe several patients with unusual clinical features. These include sudden death, cerebral hemorrhage, refractory con gestive heart failure, acute abdominal pain, and hypercalcemia. In 2 patients, the rare association of this tumor pregnancy was observed. Two subjects had 1 during a pneumoencephalogram another an epidural block. The should be aware these manifestations