Researchers discover Toxoplasma gondii's mechanism of infecting brain cells

2019 ◽  
Author(s):  
Editage Insights
Keyword(s):  
Brain Cells

Presence of antibody in virus-infected brain cells of SSPE ferrets

1983 ◽  
Vol 41 ◽  
pp. 804-805
Author(s):  
Hannah R. Brown ◽  
Tammy L. Donato ◽  
Halldor Thormar
Keyword(s):  
Measles Virus ◽  
Plasma Cells ◽  
Subacute Sclerosing Panencephalitis ◽  
Protein A ◽  
Neutralizing Antibody ◽  
Brain Cells ◽  
Antibody Titers ◽  
A Cell ◽  
The Central Nervous System ◽  
The Brain

Measles virus specific immunoglobulin G (IgG) has been found in the brains of patients with subacute sclerosing panencephalitis (SSPE), a slowly progressing disease of the central nervous system (CNS) in children. IgG/albumin ratios indicate that the antibodies are synthesized within the CNS. Using the ferret as an animal model to study the disease, we have been attempting to localize the Ig's in the brains of animals inoculated with a cell associated strain of SSPE. In an earlier report, preliminary results using Protein A conjugated to horseradish peroxidase (PrAPx) (Dynatech Diagnostics Inc., South Windham, ME.) to detect antibodies revealed the presence of immunoglobulin mainly in antibody-producing plasma cells in inflammatory lesions and not in infected brain cells.In the present experiment we studied the brain of an SSPE ferret with neutralizing antibody titers of 1:1024 in serum and 1:512 in CSF at time of sacrifice 7 months after i.c. inoculation with SSPE measles virus-infected cells. The animal was perfused with saline and portions of the brain and spinal cord were immersed in periodate-lysine-paraformaldehyde (P-L-P) fixative. The ferret was not perfused with fixative because parts of the brain were used for virus isolation.

Regenerating brain cells

Nature ◽  
1998 ◽  
Author(s):  
Sara Abdulla
Keyword(s):  
Brain Cells

KEJANG SEBAGAI MANIFESTASI NEUROLOGI DARI LEUKOSTASIS

2020 ◽  
Vol 3 (3) ◽  
pp. 127-131
Author(s):  
Eric Hartono Tedyanto ◽  
Ni Komang Sri Dewi Untari
Keyword(s):  
Lymphoblastic Leukemia ◽  
Clinical Manifestations ◽  
Emergency Situation ◽  
Early Mortality ◽  
Brain Cells ◽  
Trigger Factors ◽  
Medicine Department ◽  
Adult Age ◽  
Patient Morbidity ◽  
Laboratory Results

ABSTRAK Latar Belakang: Secara klinis, leukostasis didiagnosa pada pasien leukemia dengan hasil laboratorium hiperleukositosis (>100.000 u/L) disertai manifestasi respiratorik, neurologis, atau renal. Insidensi hiperleukositosis pada Leukemia Limfoblastik Akut (LLA) usia dewasa 10-30%, jarang pada wanita, dan jarang menyebabkan leukostasis. Laporan Kasus: Seorang wanita berusia 20 tahun dikonsulkan dari bagian penyakit dalam dengan kejang umum tonik-klonik. Hasil laboratorium menunjukkan leukosit 134.500 u/L, hasil EKG menunjukkan iskemik miokardium. Diskusi: Leukostasis jarang terjadi pada pasien leukemia. Leukostasis menyebabkan aliran oksigen dalam darah menuju sel menjadi inadekuat, termasuk salah satunya aliran darah yang menuju sel otak. Hipoksia jaringan otak merupakan salah satu faktor pemicu terjadinya kejang. Kesimpulan: Leukostasis merupakan suatu keadaan emergensi yang dapat meningkatkan morbiditas dan mortalitas pasien. Tujuan tatalaksana penyakit adalah mengurangi mortalitas dini, termasuk tatalaksana kejang, yang merupakan salah satu menifestasi klinis leukostasis. Kata kunci: kejang, leukostasis, leukemia.   ABSTRACT Background: Clinically, leukostasis is diagnosed in patients with leukemia with laboratory results of hyperleukocytosis (> 100,000 u / L) followed by respiratory, neurological, or renal manifestations. The incidence of hyperleukocytosis in Acute Lymphoblastic Leukemia (LLA) is 10-30% of adult age, rare in women, and rarely causes leukostasis. Case Report: A 20th-years-old woman was consulted from an Internal Medicine Department with a tonic-clonic general seizure. Laboratory results showed that leukocytes were 134,500 U / L and ECG results showed an ischemic myocardium. Discussion: Leukostasis rarely occurs in leukemic patients. Leukostasis causes the flow of oxygen in the blood to the cells to be inadequate, including the blood flow to brain cells. Brain tissue hypoxia is one of the trigger factors for seizures. Conclussion: Leukostasis is an emergency situation that can increase patient morbidity and mortality. The aim of disease management is to reduce early mortality, including management of seizures, which is one of the clinical manifestations of leukostasis. Keywords: seizure, leukostasis, leukemia.

Sign in / Sign up

Export Citation Format

Share Document