Objective To explore the relationship between the protein expression of PCNA and biological behavior science in benignant pituita ry adenoma.Methods The protein expression of PCNA in 58 patien ts with pituitary adenoma were determined by ABC immunohistochemical method.Results The PCNA index was significantly higher in the patients with recurrent pituitary adenomas than in nonrecurrent ones(P<0.05).There was no significantly difference between bleeding and unbleeding group,cystic and noncystic group,large type and unlarge type group(P>0.05 respectively) .Conclusion The protein expressions of PCNA reflected the proli ferative activties of pituitary adenomas, and could be taken as one of the indic ators to evaluate recurrence and prognosis of the tumor.

Aged ; Apraxias ; physiopathology ; Gait Apraxia ; physiopathology ; Humans ; Parkinson Disease ; diagnosis ; physiopathology

Animals ; Burns ; drug therapy ; metabolism ; physiopathology ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Male ; Mesentery ; blood supply ; Microvessels ; drug effects ; physiopathology ; Phytotherapy ; Rats ; Rats, Sprague-Dawley ; Superoxide Dismutase ; metabolism ; Trillium ; chemistry

Animals ; Curcumin ; pharmacology ; Diabetes Mellitus, Experimental ; drug therapy ; Rats

Alzheimer Disease ; metabolism ; Animals ; Antioxidants ; metabolism ; Mice ; Polysaccharides ; pharmacology

Objective To investigate the early effect of extracorporeal shockwave(ESW) treatment on distraction osteogenesis of rabbit tibias and its mechanism. Methods 30 adult New Zealand white rabbits were used. After osteotomy of left tibias, improved Orthofix M- 100 bone fixator was applied. After 5 days, bone lengthening of 1 cm was obtained over 10 days. Randomly the animals were divided into ESW and control groups. No ESW treatment was given to the control group. The shock wave was set at 0.54 mJ/mm2 and 1000 shots each time were applied to the central areas in the ESW group. Then the animals were divided into 3 sub- groups, and were killed respectively at 45, 60 and 75 days after osteotomy. During the process, X- ray, bone mineral density (BMD) and histological examinations were conducted for every animal. Results By X- ray and BMD measurements, we found significantly more bone mass increased in the ESW group than in the control group at 45, 60 days after operation (P

Endothelial progenitor cells(EPC),which have the capacity to differentiate into mature endothelial cells,have been found to home to and incorporate into the angiogenic vasculature of growing tumors with high specificity once mobilized into the circulation.Yet the mechanism still remains unclear.EPC have potential as spatial-specific delivery vehicles.Thus,further studies on the mechanisms of tumor neovascularization and tumor therapy in glioma using genetically engineered EPC as angiogenesis-selective vectors will be of help to explore the potential in the basic and clinical application of EPC in(glioma.)

The PIWI family members are defined as conserved PAZ and PIWI domains and play important roles in stem-cell self-renewal,spermatogenesis,RNA interference and translational regulation.Recent researches have showen that some PIWI are specifically expressed in tumors and associated with tumor development and growth.PIWI is likely to be a new significante index for tumor diagnose and prognosis,the feasibility of PIWI acting in tumor gene theropy could be in vestigated by studying the mechanism of PIWI expression and regulation.

Objective:To analyze neuropsychological characteristics of a Chinese patient with semantic dementia (SD)。Methods:A patient with SD was selected to finish 11 neuropsychological tests and MRI and XeCT。Results:(1)Selective impairment of semantic memory caused severe anomia, impaired spoken and written single-word comprehension, reduced generation of exemplars on category fluency tests and an impoverished fund of general knowledge; (2)relative sparing of other components of language output and comprehension; normal perceptual skill and non-verbal problem-solving abilities; relatively preserved episodic memory; (3)a reading disorder with pattern of surface dyslexia;(4) radiological investigations (MRI and XeCT) have shown severe left temporal neocortex atrophy.Conclusion:There are similar clinical and neuropsychological characteristics for SD between the Chinese patient and the sample of Western. Selective impairment of semantic memory may bring about by left temporal neocortex atrophy。

The G395R mutation of human sodium/iodide symporter gene was investigated by PCR-RFLP in 52 children with congenital hypothyroidism and 106 health children. The result suggested that G395R mutation may not be the main cause of congenital hypothyroidism in Qingdao.