Molecular imaging is a newly rising branches of science which comes from molecular biology technology and modern medical imaging,and it would be the development tendency of mendiacl imaging. This article briefly introduces the basal principle of molecular imaging,the difference and correlation between molecular imaging and traditional medical imaging and the development prospect of medical imaging.

Objective To investigate the distribution of NGF in the cochleae of neonate rats and to explore the mechanism of NGF in the auditory path. Methods Twenty healthy neonate SD rats aged 5-7 d were selected and their cochlear paraffin sections were labeled with a rabbit anti-NGF polyclonal antibody by SP method. Results The membranous labyrinth of neonate rats appeared similar to triangle and NGF expression was observed in immature corti’s organ, in spiral ganglion cells and in nerve fibers throughout the cochlea. The distribution located in both cytoplasm and nucleus. Conclusion The distribution of NGF was closely related to survival and maturation of spiral ganglion cells and hair cells in rats aged 5-7 d.

Objective To construct the adenoviral vector carrying Mus-?NGF gene and to study the expression of the gene in the marrow mesenchymal stem-cells(MSCs).Methods Mus-?NGF cDNA was cloned from mice glandulae maxillaries whole mRNA by reverse-transcription polymerase-chain-reactions.The Mus-?NGF cDNA was positively cloned into the adenoviral shuttle vector pAdtrack carrying cytomegalovirus promoter(CMV)and tag-protein(GFP),and then homologous recombined into competent BJ5 183 cells with the adenoviral backbone plasmid pAdeasy-1.The recombinant adenoviral plasmid was identified by restriction enzymes and transfected into HEK293 cells to package and amplify recombinant adenoviral particles which was capable of infecting and would express ?NGF and GFP proteins.After the adenovirus infected the MSCs,the expression was observed via fluorescent microscrope and detected using immunocytochemical method.The secretion of NGF was detected by WB.Results The recombinant adenoviral vector carrying Mus-?NGF gene was constructed and confirmed by restriction endonuclease enzyme analysis.The relucent green fluor-light would be observed in the MSCs.IHC showed that Mus-?NGF gene was exactly transcripted and expressed in the MSCs,and the secretion of NGF was confirmed.Conclusion The exogenous gene,such as ?NGF,an be imported into the MSCs efficiently by recombinant adenoviral vector,and can be expressed and secreted successfully in the cells.It improves foundation for the celluar transplant and gene intervention of MSCs expressing NGF in inner ear.

Animals ; Cochlea ; growth & development ; metabolism ; Female ; Guinea Pigs ; Male ; Nerve Growth Factor ; metabolism

We report an autopsy case of neonatal giant cell hepatitis that was presumed to be related to bacterial sepsis, endotoxemia and to the subsequent parenteral alimentation and antibiotics treatment. The patient died of candidal endocarditis and multiple brain infarcts. This female baby was born by a normal full term spontaneous delivery. Six days after delivery she developed fever and lethargy as she suffered from Cheyne-Stokes respiration with severe grunting. Blood culture grew Enterobacter and Acinetobacter. After management of the sepsis her general condition improved. On the 23rd day of admission she was found to have deep jaundice and hepatosplenomegaly. The liver became larger progressively and the edge was palpable at the umbilical level. Grade II systolic murmur was heard along the left lower sternal border. She died on the 31st day of hospitalization. Postmortem examination showed severe jaundice, hepatosplenomegaly, a large vegetation on the mitral valve and multiple petechial hemorrhages of the viscera. Microscopically the liver showed features of massive giant cell transformation, mild fibrosis and inflammatory cells, suggestive of giant cell hepatitis. Numerous yeasts and candidal pseudohyphae were seen in the cardiac vegetation, focally extending into the myocardium. There was a focus of candidal vasculitis in the bowel wall. In addition there were multiple bilateral organizing infarcts in the cerebral hemisphere as well as diffuse white matter damage associated with septicemia.
Female ; Infant, Newborn ; Humans

Primary oxalosis is a rare genetic disorder caused by a deficiency of the peroxisomal enzyme alanine-glyoxylate aminotransferase(type I) and D-glyceric dehydrogenase(type II). It is characterized by the triad of radiopaque urolithiasis, nephrocalcinosis, and latered renal function. We report a case of primary oxalosis in a 10-year-old Korean girl. She presented with chronic renal failure at 9 years of age. Ultrasonographic examination revealed bilateral, multiple renal and ureteral stones. Removed stones were chemically analysed to be composed of calcium oxalate. She underwent renal transplantation after prolonged period of dialysis. Removed kidneys were firm and gritty. Cut sections showed numerous tiny yellow sandy stones and a large staghorn stone. Specimen X-ray also exhibited disseminated fine granular and often coalescent radiopaque materials throughout the cortex and medulla. Microscopically numerous varying-sized crystals were noted in the kidney in globular or rhomboid appearance. The crystals were semitranslucent and doubly refractile under the polarized light. Diffuse interstitial fibrosis and chronic inflammation as well as glomerular obsolescence were also noted. The oxalate deposit was diffuse and marked, and was thought to be intimately related to the parenchymal damage and fibrosis.

An appreciation of the radiation changes in the brain adjacent to radiated glioma is of considerable importance from both clinical and pathological standpoint because the alteration in the brain parenchyma may result in a picture that mimics recurrence of the neoplasm. A 35 years old woman was admitted because of deterioration of consciousness which has started about 20 days ago. Past history revealed removal of left frontal brain tumor 4 years earlier and the diagnosis was grade II astroma. Postoperative radiation was done at that time. Sine then, she has been doing well. Computerized tomogram showed an ill defined huge low density mass at right frontal and left posterior parietal areas, which was irregularly enhanced in postcontrast study. Unlikely to the usual brain tumors, there was no mass effect on adjacent structures. Histologically acellular necrotic zone was alternating with hypercellular zone and most striking changes were vascular and glial reaction. Most of the vessels showed acellular hyliane thickening of their wall and some vessels were almost completely occluded. There was marked glial proliferation with considerable cellular and nuclear irregularities. Gemistocytic astrocytes were frequently seen and some were multinucleated.
Female ; Humans

Objective To investigate whether the Serum Ig is help to choose the optimal treatment in patients with immune thrombocytopenia(ITP) .Methods 128 ITP patients were collected for 3 years .All of ITP patients were treated with the step-style protocol including glucocorticoid(CsA)lombied IVIG ,Ciclosporin A and TPO receptor agonist lombied rituximab .The treatment re-sponse were evaluated according the comparison between the two groups namely ≤IgG ,IGM ,IgA median and > median groups . Results There was no relationship between the bleeding and IgA 、IgM、IgG level .Low IgM level was associated with first line treatment resistance and showed the response to CsA and TPO receptor agonist lombied rituximab .High IgA level was associated with the resistance of first line and CsA treatment ,but showed no response to TPO receptor agonist lombied rituximab .Conclusion Serum Ig level is helpful for the choice of optimal treatment strategies in adult IT P patients .

No abstract available.
Neck Dissection* ; Neck*

As one of the primary prevention measures to reduce birth defects , the premarital healthcare service has played an important role in the prevention of communicable diseases , maintaining the harmonious and happy mar-riage, health and other aspects of protection of the next generation .Different countries and regions also design and implement the premarital medical examination system based on their actual situations .This article summarized the practices, characteristics and experiences of premarital healthcare services in some foreign countries and regions through several aspects including model , set projects content , financing and other aspects of the application of the premarital results.Finally, this paper put forwards suggestions on the premarital healthcare services in our country to help healthy the carrying out of the premarital work .