Objective Primitive neuroectodermal tumor (PNET) is a rare malignant small round cell tumor .This paper aimed to study the clinical and pathological features of primary pulmonary primitive neuroectodermal tumor . Methods We collected 2 cases of primary pulmonary PNET to review the clinical and pathological features .Immunohistochemical staining was used to detect immune mark-ers, and fluorescence in situ hybridization (FISH) was applied to detect EWS translocation. Results 2 patients were aged 33 years and 17 years.Microscopically, the tumor cell was composed of single small round cells in diffusion or in distribution of sheets or beams , with scant cytoplasm , oval or spindle-shaped nucleus , high mitotic count .Irregular tumor necrosis scattered in the tumor along with visi-ble rosette structure.Immunohistochemical study showed that the tumor cells were positive for CD 99, FLI-1 and Syn, while CKpan, EMA, Desmin, CgA, TTF1, CD34 were negative.EWS/FLI1 translocations were detected positive in both the cases .2 patients died 7 months and 32 months after operation , respectively . Conclusion Primary pulmonary PNET is rare , so the selection of appropriate im-mune markers (CD99, FLI-1, Syn) and FISH for the detection of EWS translocation helps to improve the accuracy of diagnosis .

OBJECTIVETo compare the clinical effects between hip anterior S-P approach combined with iliac bone flap transplantation with deep circumflex iliac artery and posterior K-L approach combined with quadratus femoris bone flap transplantation for the treatment of femoral neck fracture of Garden III-IV in young and middle-aged patients.

METHODSFrom January 2004 to January 2011,46 patients with femoral neck fractures were treated by two kinds of operation. Among them, 20 cases were treated with anterior S-P approach combined with iliac bone flap transplantation with deep circumflex iliac artery, included 12 males and 8 females with an average age of (32.1 ± 7.3) years old, involved 12 cases of Garden III and 8 cases of Garden IV. The other 26 cases were treated with posterior K-L approach combined with quadratus femoris bone flap transplantation, included 20 males and 6 females with an average age of (37.8 ± 6.9) years old, involved 16 cases of Garden III and 10 cases of Garden IV. The index of hospitalization (hospitalization time, total cost, operative time, intraoperative blood loss, postoperative complications), the quality index of operation (fracture reduction, position of internal fixation, fracture healing time, nonunion and femoral head necrosis) of two groups were observed and compared. Hip joint function were evaluated by Harris score.

RESULTSAll patients were followed up from 28 to 41 months with an average of 36 months. The intraoperative blood loss of group S-P (92.3 ± 10.4) ml was less than that of group K-L (132.4 ± 11.2) ml, there was significant difference between two groups (P < 0.05). The operation time of group S-P (81.4 ± 9.2) min was more than that of group K-L (67.1 ± 4.5) min, the difference was statistically significant (P < 0.05). One case in group S-P and 9 cases in group K-L appeared postoperative complications, there was significant difference between two groups (P < 0.05). The fracture healing time of S-P group (83.5 ± 7.3) d was shorter than that of group K-L (103.2 ± 12.6) d, there was significant difference between two groups (P < 0.05). At 30 months after operation, there were significant difference in Harris scoring between two groups (P < 0.05).

CONCLUSIONAnterior S-P approach combined with iliac bone flap transplantation with deep circumflex iliac artery for treatment of femoral neck fracture of Garden III-IV of young and middle-aged patients, it has characteristics in clear anatomic and easy to operate. As compared with K-L approach, S-P approach can better reserve residual blood supply of femoral neck. While combining with the iliac bone flap transplantation with deep circumflex iliac artery, it could better reconstruct the blood supply of femoral neck to promote fracture healing.

Adult ; Case-Control Studies ; Female ; Femoral Neck Fractures ; physiopathology ; surgery ; Fracture Healing ; Humans ; Iliac Artery ; Male ; Middle Aged ; Surgical Flaps ; transplantation

OBJECTIVETo probe into an effective method for treatment of poststroke depression.

METHODSTwo hundred and fifty-six cases of poststroke depression were randomly divided into a control group (n = 76) treated by oral administration of amitilin and an acupuncture group (n = 180) treated by activating brain and regaining consciousness needling method. Their clinical therapeutic effects and changes of relative factors of poststroke depression and plasma contents of monoamine neurotransmitters were observed.

RESULTSIn the acupuncture group, the clinical symptoms and the relative indexes in the depression scales improved and plasma contents of the monoamine neurotransmitters increased significanty as compared with the control group (P < 0.05).

CONCLUSIONThe needling method for activating brain and regaining consciousness can improve relative factors to cure poststroke depression.

Acupuncture Therapy ; Brain ; Consciousness ; Depression ; therapy ; Depressive Disorder ; Humans

The purpose of this study is to explore depression metabolic markers in rat hippocampus and to investigate the anti-depressant effect of genipin and its mechanisms using nuclear magnetic resonance (NMR) metabonomics. Chronic unpredictable mild stress (CUMS) procedure was conducted to establish the depressive rat model. At the beginning of the third week, genipin low dose (25 mg x kg(-1)), middle dose (50 mg x kg(-1)), high dose (100 mg x kg(-1)), and venlafaxine (50 mg x kg(-1)) were given to the CUMS rats separately once daily for two weeks except control and model groups. Rat hippocampus was analyzed by 1H NMR based metabonomics after drug administration for 2 weeks. Significant differences in the metabolic profile of rat hippocampus of the CUMS treated group and the control group were observed with metabolic effects of CUMS including decreasing in glycine and N-acetylaspartate, increasing in inositol, glutamate, lactate, glutamine, taurine and alanine. Genipin showed ideal antidepressive effects at a dose of 50 mg x kg(-1) in rats, decrease of inositol, glutamate, lactate, alanine were observed, while glycine and N-acetylaspartate were increased. Important influence has been found on normal nervous system function of these significant changed metabolites, which suggests that the antidepressant effect of genipin may be played by enhancing the activity of neurons in hippocampus, repairing and improving the function of the neuron. The metabonomics approach is an effective tool for the investigation of the anti-depressant effect and pharmacologic mechanisms of genipin.
Alanine ; metabolism ; Animals ; Antidepressive Agents ; isolation & purification ; pharmacology ; Aspartic Acid ; analogs & derivatives ; metabolism ; Behavior, Animal ; drug effects ; Chronic Disease ; Depression ; drug therapy ; metabolism ; physiopathology ; Gardenia ; chemistry ; Glutamic Acid ; metabolism ; Glycine ; metabolism ; Hippocampus ; drug effects ; metabolism ; Inositol ; metabolism ; Iridoids ; isolation & purification ; pharmacology ; Lactic Acid ; metabolism ; Magnetic Resonance Spectroscopy ; Male ; Metabolomics ; Plants, Medicinal ; chemistry ; Rats ; Rats, Sprague-Dawley

Animals ; Comet Assay ; DNA Damage ; drug effects ; Lymphocytes ; drug effects ; Male ; Organometallic Compounds ; toxicity ; Rats

Objective To investigate CT appearances of abdominal primary malignant fibrous histiocytoma(MFH).Methods The CT characteristics,clinical features and pathological data of 1 7 patients with MFH proved pathologically were analyzed retrospectively. Results The lesions located in retroperitoneum were 6,in liver were 5,in kidney were 2,in superior mesentery was 1,in greater omentum was 1,in stomach was 1,in ileum was 1.The lesions are oval shape,lobulated,nodule shape,and the size of these lesions were large. 2 cases of MFH located in gastrointestinal tract were slightly low density,and the remaining were uneven high density due to necro-sis.In CT contrast enhanced scan,the solid portion and internal divisions showed progressive or continuous enhancement,and the nec-rosis were not enhanced in MFH located in the retroperitoneum,the greater omentum,the superior mesentery and the liver.MFH in kidney was poorly circumscribed and showed mild progressive enhancement lower than normal renal parenchyma.The stomach and ileum lesions showed uniform and continuous enhancement with normal gastrointestinal mucosa in corresponding parts.Conclusion Imaging features of retroperitoneal MFH were the same as those of interstitial tumors,and most tumors showed features of progres-sive and persistent enhancement,but have different imaging appearances with the malignant lesions in corresponding parts.

Objective The exam quality of ‘Probability’ course for foreign medical undergraduates was analyzed,aiming at providing some reference for the improvement of the student evalua-tion system and course quality.Methods The ‘Probability’ course exam scores of 167 foreign un-dergraduates of 2014 batch were collected,the students were divided into two classes according to their entrance date,the former part class A consisted of 90 students,the latter part class B consisted of 77 students.The reliability of the test paper was judged according to Cronbach's α,Hotelling's T2 and Pearson correlation coefficient.The Spearman correlation analysis was adopted to evaluate the cor-relation between the question items.For the two classes,the impact of the entrance time on the test scores was explored on the basis of Student's t-test of question item scores and the total scores.Results The average score of the course exam was 82.587 points with the standard deviation of 13.520,Kol-mogorov-Smimov statistic was 1.627 (P=0.010),the exam scores could not follow normal distribution.The Cronbach's α for the exam paper was 0.808,the standardized Cronbach's α was 0.815.The Spearman correlation coefficients between the five question items were all with statistical significance and varied from 0.315 to 0.657.As the students were divided into two classes according to their entrance date,for the ‘Probability’ section scores of the latter batch students were less than the scores of the former batch,with the difference 4.017 points,the same situation was also found that all the five items in the ‘Probability’ section.Conclusions The entrance time for the foreign medical freshman has an impact on their exam scores,suggesting that more attention should be paid to those students.

The metabolic profiles of control and MCF-7 cells treated with luteolin were analyzed separately using gas chromatography/mass spectrometry ( GC/MS ) to study the mechanism of the luteolin treatment on MCF-7 cells. Cell viability assays showed that luteolin had inhibition effect on MCF-7 cells. Partial least square discriminant analysis ( OPLS-DA) was used to process the metabolic data. Since cells in phase of S were increased significantly, we speculated that luteolin had a blocking effect on pentose phosphate pathway of MCF-7 cells, which contributed to its inhibition effect on proliferation of MCF-7 cells.

Objective To investigate the CT imaging characteristics of primary malignant fibrous histiocytoma (MFH) of the liver.Methods The CT, clinical and histopathologic data of 6 patients with MFH were analyzed retrospectively.All the cases were confirmed by surgery and histopathological examinations.Results The tumors were located in the right liver in 4 patients and the left liver in 2 patients.The maximum diameter of the tumors ranged from 5 to 20 cm.All the tumors were unevenly hypodense on plain CT scan.Four tumors had relatively well-defined margins, while 2 tumors had ill-defined margins.After contrast enhancement, the peripheral and internal divisions of the three storiform-pleomorptic MFH showed progressive enhancement.The peripheral and internal divisions of the two inflammatory MFH were obviously enhanced in the arterial phase, and the enhancement decreased in the portal and delayed phases.The hypodense areas of the one myxiod MFH were not enhanced, but the internal floc and divisions were progressive enhanced.On gross pathology, the tumors were round or irregular in shape, most had a complete capsule with multiple surrounding vessels.These findings correlated well with the CT findings.Conclusions CT findings of primary Hepatic MFH have some characteristics.The enhancement pattern is manifested in a fast wash-in and slow wash-out pattern.However, the final diagnosis still relies on histopathological examination.

The optometry in physical examinations is conducted manually at present and this method is neither precise nor efficient. After studying the standard logarithmic visual acuity charts which is popular in our country, we have designed an optometry system based on Client/Server Computing Mode. The system's architecture and its working principle are also presented in the article.
Algorithms ; Artificial Intelligence ; Computer Simulation ; Equipment Design ; Humans ; Information Storage and Retrieval ; methods ; Microcomputers ; Optometry ; instrumentation ; methods ; Physical Examination ; instrumentation ; methods ; Software Design