BACKGROUND: The FcgammaRII receptor, the only kind of Fc receptor in the platelet, plays important role for immune-complex mediated platelet activation, which occurs in Heparin induced thrombocytopenia(HIT) or antiphospholipid syndrome. The purpose of this research is to find out the role of gamma-subunit in FcgammaRII signal transduction of platelets. METHODS: After cross-linking the FcgammaRII receptors with IV.3 anti FcgammaRII specific antibody and Rabbit anti mouse antibody, we made the platelet lysate in the RIPA EDTA lysis buffer condition, and performed anti gamma-subunit immunoprecipitation. After polyacylamide gel electrophoresis and Western transfer, we probed the nitrocellulose membrane of gamma-subunit immunoprecipitate with anti gamma-subunit antibody. RESULTS: The mobility shift of gamma-subunit was observed upon FcgammaRII cross-linking. CONCLUSION: The gamma-subunit is activated upon FcgammaRII cross-linking, which means the gamma-subunit is involved in FcgammaRII signal transduction of platelet.
Animals ; Antiphospholipid Syndrome ; Blood Platelets ; Collodion ; Edetic Acid ; Electrophoresis ; Heparin ; Immunoprecipitation ; Membranes ; Mice ; Platelet Activation ; Receptors, Fc ; Signal Transduction*

No abstract available.
Diagnosis* ; Infant, Newborn ; Meconium Aspiration Syndrome* ; Meconium*

No abstract available.
Anemia, Hemolytic, Autoimmune*

Dyke-Davidoff-Masson syndrome is a rare clinical syndrome consisting of hemiatrophy of cerebral hemisphere, enlargement of ventricles and prominent pneumatization of petrous pyramid of the temporal bone. Its clinical manifestations are hemiparesis, several types of seizure, mental retardation and other neurologic deficits. We experienced a case of Dyke-Davidoff-Masson syndrome in a four months old boy who visited to our department due to right side upper extremity weakness and infantile spasm. The brain magnetic resonance imaging showed marked hemiatrophy of left cerebral hemisphere and enlargement of left lateral ventricle. So with the review of literatures, we report a case of Dyke-Davidoff-Masson syndrome with infantile spasm.
Brain ; Cerebrum ; Humans ; Infant ; Infant, Newborn ; Intellectual Disability ; Lateral Ventricles ; Magnetic Resonance Imaging ; Male ; Neurologic Manifestations ; Paresis ; Petrous Bone ; Seizures ; Spasms, Infantile* ; Temporal Bone ; Upper Extremity

Brachycephaly is a kind of craniosynostosis. Because of premature closure of the coronal suture, the skull is shorter in the anteroposterior diameter but is widened with a high vault and the occiput and forehead are flattened. Diabetes insipidus had been reported in oxycephaly. We have experienced a case of central diabetes insipidus associated with brachycephaly. A brief review of related literatures is included in this report.
Craniosynostoses* ; Diabetes Insipidus ; Diabetes Insipidus, Neurogenic* ; Forehead ; Skull ; Sutures

No abstract available.
Spinal Cord Diseases*

Vascular leak syndrome(VLS) is characterized by endothelial damage, which causes extravasation of plasma proteins and fluid from capillaries into the extravascular space. It has been suggested that the increased vascular permeability is the result of an IL-2-induced suppression of endothelin-1 secretion by endothelial cells, an IL-2-induced activation of the complement cascade or TNF-alpha release from IL-2-activated T-cells. A 13-year-old male patient visited our hospital with abdominal pain. He was diagnosed with acute lymphoblastic leukemia(T cell type) by bone marrow study on his 2 nd day in hospital. On the 3 rd day of induction chemotherapy(prednisone, L-asparaginase, vincristine, intrathecal methotrexate), pulmonary edema and pleural effusion, ascites and generalized edema developed and lasted for 53 days without responding to supportive care. The laboratoy finding was that TNF-alpha was increased without evidence of infection and hypoalbuminemia was noted. It was suggested that the patient's clinical feature was induced by VLS.
Abdominal Pain ; Adolescent ; Ascites ; Blood Proteins ; Bone Marrow ; Capillaries ; Capillary Permeability ; Complement System Proteins ; Edema ; Endothelial Cells ; Endothelin-1 ; Humans ; Hypoalbuminemia ; Induction Chemotherapy* ; Male ; Pleural Effusion ; Precursor Cell Lymphoblastic Leukemia-Lymphoma* ; Pulmonary Edema ; T-Lymphocytes ; Tumor Necrosis Factor-alpha ; Vincristine

Septo-optic dysplasia, as first described by de Morsier, is a rare developmental anomaly of absent or hypoplastic septum pellucidum, a primitive optic vesicle, and dysplasia of the optic nerve, chiasm, and optic tracts. It is a common cause of hypopituitarism in children and has variable hypothalamic-pituitary dysfunction. We experienced a case of septo-optic dysplasia in 5 month old female baby who presented with developmental delay and seizure. A magnetic resonance imaging of the brain showed absence of the septum pellucidum and the fundoscopic examination disclosed the absence of left optic disc and atrophy of right optic disc.
Atrophy ; Brain ; Child ; Female ; Humans ; Hypopituitarism ; Infant ; Magnetic Resonance Imaging ; Optic Nerve ; Seizures ; Septo-Optic Dysplasia* ; Septum Pellucidum ; Visual Pathways

No abstract available.
Blood Glucose* ; Glucose* ; Humans ; Infant, Newborn*

No abstract available.
Acyclovir* ; Necrosis*