scholarly journals A Reversible Cytotoxic Lesion of the Corpus Callosum Developing after a Rapid Alteration in Cerebrospinal Fluid Pressure/Volume in a Patient with New Daily Persistent Headache

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Todd D. Rozen ◽  
Hector A. Robles
Keyword(s):  
Central Nervous System ◽  
Corpus Callosum ◽  
Fluid Pressure ◽  
New Daily Persistent Headache ◽  
Csf Pressure ◽  
Acute Withdrawal ◽  
History Of ◽  
The Central Nervous System ◽  
Head Pressure ◽  
Persistent Headache

A case is presented of a woman with a history of daily persistent head pressure and dizziness who developed a cytotoxic lesion of the splenium of the corpus callosum after an acute withdrawal of chronic acetazolamide treatment and then, in quick succession, a CSF pressure/volume drop with a lumbar puncture. This is the first documentation that rapid alterations of CSF pressure/volume may trigger cytotoxic lesions in the central nervous system.

THE FAMILY HISTORY OF SPINA BIFIDA CYSTICA

PEDIATRICS ◽  
1965 ◽  
Vol 35 (4) ◽  
pp. 589-595
Author(s):  
John Lorber
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Spina Bifida ◽  
Index Case ◽  
Progressive Increase ◽  
Point Of View ◽  
The Family ◽  
History Of ◽  
The Central Nervous System ◽  
Spina Bifida Cystica

1. The family histories of 722 infants who were born with spina bifida cystica were studied. 2. The index cases were referred for surgical treatment and were not selected in any way from the genetic point of view. 3. Intensive inquiries were made to obtain a complete family pedigree, including a prospective follow-up of siblings born after the index case. 4. Of 1,256 siblings 85 or 6.8% had gross malformation of the central nervous system: spina bifida cystica in 54, anencephaly in 22, and uncomplicated hydrocephalus in 9. 5. Of 306 children born after the index case 25 (8%) or 1 in 12 were affected. 6. There was a progressive increase in multiple cases in the family with increasing family size. In sibships of five or more, multiple cases occurred in 24.1%. 7. In 118 families cases of gross malformation of the central nervous system were known to have occurred among members of the family other than siblings. Cases occurred in three generations. 8. It is possible that spina bifida cystica might be a recessively inherited condition.

scholarly journals The life history of Hepatozoon leptodactyli (Lesage, 1908) Pessoa, 1970: a parasite of the common laboratory animal: the frog of the genus Leptodactylus

1973 ◽  
Vol 71 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
Sylvio Celso Goncalves da Costa ◽  
Samuel B. Pessoa ◽  
Neize de Moura Pereira ◽  
Tania Colombo
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Life History ◽  
Laboratory Animal ◽  
Peripheral Circulation ◽  
Experimental Conditions ◽  
History Of ◽  
The Central Nervous System ◽  
The Common ◽  
Common Laboratory

The main object of the present paper is to furnish a brief account to the knowledgement of Protozoa parasitic in common Brazilian frog of the genus Leptodactylus for general students in Zoology and for investigators that use this frog as a laboratory animal. Hepatozoon leptodactyli (Haemogregarina leptodactyli) was found in two species of frogs - Leptodactylus ocellatus and L. pentadactylus - in which develop schizogony whereas sporogony occurs in the leech Haementeria lutzi as was obtainded in experimental conditions. Intracellular forms have been found in peripheral circulation, chiefly in erythrocytes, but we have found them in leukocytes too. Tissue stages were found in frog, liver, lungs, spleen, gut, brain and heart. The occurence of hemogregarine in the Central Nervous System was recorded by Costa & al,(13) and Ball (2). Some cytochemical methods were employed in attempt to differentiate gametocytes from trophozoites in the peripheral blood and to characterize the cystic membrane as well. The speorogonic cycle was developed in only one specie of leech. A brief description of the parasite is given.

scholarly journals Fetal MRI vs. fetal ultrasound in the diagnosis of pathologies of the central nervous system

2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Inês Pimentel ◽  
João Costa ◽  
Óscar Tavares
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Corpus Callosum ◽  
Fetal Mri ◽  
Fetal Ultrasound ◽  
Fetal Malformations ◽  
Fetal Us ◽  
The Central Nervous System ◽  
Common Group ◽  
Magnetic Resonance Imaging Mri

Abstract Background Malformations of the central nervous system (CNS) constitute the 2nd most common group of fetal pathologies, which can be reflected throughout the patient's life. Fetal ultrasound (US), together with fetal magnetic resonance imaging (MRI) are extremely important techniques for the diagnosis of CNS malformations. The objective of this work was to address fetal US and fetal MRI, as well as the benefits of its use in different CNS pathologies and to ascertain which of the techniques presents better results. Methods For this systematic literature review, a search was conducted using databases such as PubMed® and ScienceDirect®, Google Scholar, b-on digital library, in a 10-year period, 2010 to 2020. 60 references were used, which met the inclusion criteria, namely compliance with the defined timeframe and the theme of the work to be addressed. Results As for the results, fetal US is the first-line technique for fetal evaluation, and its objective is to detect possible fetal malformations early, while fetal MRI complements the information collected through fetal US. When there are cases of isolated ventriculomegaly and complete agenesis of the corpus callosum, fetal US can correctly assess the pathology. When it comes to pathologies such as dysgenesis of the corpus callosum and malformations of the posterior fossa, fetal MRI evaluates more effectively in comparison to fetal US. Conclusions In conclusions, to reduce the number of false positives, the techniques should be used together, thus providing a better diagnosis.

CARDIOVASCULAR EFFECTS OF THE INSECTICIDE ENDRIN

1964 ◽  
Vol 42 (1) ◽  
pp. 41-51 ◽  
Author(s):  
T. E. Emerson Jr. ◽  
C. M. Brake ◽  
L. B. Hinshaw
Keyword(s):  
Central Nervous System ◽  
Cerebrospinal Fluid ◽  
Nervous System ◽  
Venous Pressure ◽  
Fluid Pressure ◽  
Cardiovascular Effects ◽  
Acute Administration ◽  
Blood Ph ◽  
The Central Nervous System ◽  
Cerebral Venous Pressure

Little is known of the cardiovascular effects of endrin insecticide. Experiments to investigate these phenomena were carried out on dogs with a variety of preparations. Results show that acute administration of endrin produces bradycardia, hypertension, copious salivation, hyperexcitability, tonic–cionic convulsions, increased body temperature, leukocytosis, hemoconcentration, and decreased blood pH. Cerebral venous pressure and cerebrospinal fluid pressure elevations are also prominent features of endrin poisoning. Although most of these effects appear to be caused by endrin acting directly on the central nervous system some may result secondarily from altered cerebral hemodynamics.

scholarly journals Ecstasy-Associated Pneumomediastinum

2007 ◽  
Vol 89 (4) ◽  
pp. 389-393 ◽  
Author(s):  
Silvana F Marasco ◽  
H Kiat Lim
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Young Adults ◽  
Inner City ◽  
Physical Exertion ◽  
Pharmacological Effect ◽  
Valsalva Manoeuvre ◽  
The Hours ◽  
History Of ◽  
The Central Nervous System

INTRODUCTION Ecstasy, also known as MDMA (3,4, methylenedioxymethamphetamine), is a popular illicit party drug amongst young adults. The drug induces a state of euphoria secondary to its stimulant activity in the central nervous system. PATIENTS AND METHODS A database review at two major inner city hospitals was undertaken to identify patients presenting with pneumomediastinum and their charts reviewed. A Medline review of all reported cases of pneumomediastinum associated with ecstasy abuse was undertaken. RESULTS A total of 56 patients presenting with pneumomediastinum were identified over a 5-year period. Review of the charts revealed a history of ecstasy use in the hours prior to presentation in six of these patients, representing the largest series reported to date. CONCLUSIONS Review of previously reported cases reveals the likely mechanism is due to Valsalva manoeuvre during periods of extreme physical exertion, and not a direct pharmacological effect of the drug.

Risperidone in the Treatment of Pervasive Developmental Disorder

1994 ◽  
Vol 39 (7) ◽  
pp. 400-405 ◽  
Author(s):  
Scot E. Purdon ◽  
Wilson Lit ◽  
Alain Labelle ◽  
Barry D.W. Jones
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Pervasive Developmental Disorder ◽  
Autistic Disorder ◽  
Developmental Disorder ◽  
Psychiatric Patients ◽  
High Likelihood ◽  
Before And After ◽  
History Of ◽  
The Central Nervous System

Elevated concentrations of blood serotonin have been documented in autistic children and mentally retarded adults. Antiserotonergic pharmacotherapy has been partially effective in treating a subgroup of children with autistic disorder. Therefore, the possibility is raised that an antiserotonergic treatment may be of value to adult psychiatric patients with a history of pervasive developmental disorder. Two such cases are described where the patients underwent psychiatric and neuropsychological examination before and after treatment with risperidone, a potent 5-HT2 antagonist with additional D2 antagonistic properties. Particular improvements were documented in both patients, despite long histories of cognitive compromise and high likelihood of damage to the central nervous system.

Modern Blockbusters

2016 ◽  
Author(s):  
Dieter Schmidt ◽  
Simon Shorvon
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Antiepileptic Drugs ◽  
Early Development ◽  
Commercial Success ◽  
Good Fortune ◽  
Interesting Study ◽  
History Of ◽  
The Central Nervous System

Five modern antiepileptic drugs have reached the fabled blockbuster status (more than $1 billion sales per year), albeit for treatment of not only epilepsy but for other disorders of the central nervous system too. These drugs generated huge profits, and the chapter asks, how were they discovered and are they worth their money? The history of the five blockbusters—levetiracetam, lamotrigine, topiramate, gabapentin, and pregabalin—provides an interesting study of chance, science, wrong ideas, and finance, and most importantly luck. The discovery of the antiepileptic effects of some of these compounds was stumbled upon by simple good fortune, and others barely escaped an early demise during an unpromising early development. Despite the commercial success, no study has shown any of these drugs to be any more effective than older drugs, yet they made billions. This chapter examines how industry could do this and what the drivers are for success.

Sign in / Sign up

Export Citation Format

Share Document