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*

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

No abstract available.
Anemia, Hemolytic, Autoimmune*

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

Eosinophilia is a common finding in premature babies during the neonatal period. Serial eosinophil counts were determined in 94 hospitalized, appropriately grown premature in fants whose gestational ages ranged form 28 to 36 weeks. The incidence, severity and etiologic factors of eosinophilia were retrospectively studied in premature infants, who were divided into three groups according to their gestational age. The results were as follows: 1) Absolute eosinophilia (>700/mm3)was documented in 46.8%(44/94). 2) The duration of TRN and antibiotics was cignificantly higher in infants with eosinophilia than withour eosinophilia (p<0.05). The gestational age of the infants with eosinophilia was significantly shorter than that of the infants without eosinophilia (p<0.05). The infants with eosinophilia started with bottle feeding significantly earlier than the infants without eosinophilia (p<0.05). 3) The infants younger than 30 weeks of gestational age have greater incidence of eosinophilia (75%) than the infant with the gestational age between 34 and 36 weeks (34.3%)(p<0.05). 4) The incidence of mild eosinophilia was higher in the group with gewtational age 30 weeks or below(37.5%)than in the group with gestational age between 34 and 36 weeks(17.1%)(p<0.05).Also, the incidence of severe eosinophilia was significantly higher in the group with gestational age 30 weeks or below(37.5%)than in the group with gestational age between 34 and 36 weeks(17.1%)(p<0.05). 5) Eosinophilia was more prevalent in the infants who received parenteral nutrition composed of glucose, amino acid and lipid(77.8%) than the infants who received only glucose(34.1%)(p<0.05). 6) Gestational age and birth weight were significantly lower in infants with severe eosinopilia than those of mild or moderate eosinophilia. The duration of TRN and antibiotics were significantly longer in infants with severe eosinophilia than those of mild or moderate eosinophilia (p<0.05). 7) The peak eosinophil count was observed significantly later in severe eosinophilic group (26.5 13.1 days)than in non-eosinophilic group(14.4 9.0 days)(p<0.05). The above results suggest that eosinophilia in premature infants may be the effecto of immature immunologic responses to the intravenous administration of extemal antigens like amino acid, lipid and antibiotics.
Administration, Intravenous ; Anti-Bacterial Agents ; Birth Weight ; Bottle Feeding ; Eosinophilia* ; Eosinophils ; Gestational Age ; Glucose ; Humans ; Incidence ; Infant ; Infant, Newborn ; Infant, Premature* ; Parenteral Nutrition ; Retrospective Studies

No abstract available.
alpha-Fetoproteins* ; Infant, Newborn ; Jaundice, Neonatal* ; Plasma*

No abstract available.
Bilirubin* ; Humans ; Infant, Newborn*

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

Purpura fulminans is one of rare consumptive coagulopathy in children. The most common predisposing conditions of purpura fulminans are infectious disease like streptococcal infection and chickenpox. This disease is characterized by ecchymotic lesions that are usually distributed symmetrically on the lower extremities and buttocks. These ecchymotic lesions undergo necrosis, unless there is effective treatment. We experienced 3 cases of purpura fulminans which improved almost completely after early heparin administration. In the case 1, a 12 month old girl, purpura fulminans developed during sepsis and gastroenteritis. In the case 2, a 4 month old boy, purpura fulminans developed during acute sepsis. We reported 3 cases with a brief review of related literature.
Buttocks ; Chickenpox ; Child ; Communicable Diseases ; Dacarbazine ; Female ; Gastroenteritis ; Heparin ; Humans ; Infant ; Lower Extremity ; Male ; Necrosis ; Purpura Fulminans* ; Purpura* ; Sepsis ; Streptococcal Infections

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