Objective To investigate the imaging features of sarcomatoid carcinoma(SC)of lung on chest radiography and CT and to improve knowledge of SC.Methods The chest plain films,CT images and clinical data of all 7 cases of pathologically proved lung SC were retrospectively analyzed.Results All cases presented with a spheroid solid lung mass ranged from 3 to 11 cm in diameter(average 7 cm).All the lesions were located in middle and lower fields of the lung:3 lesions in right lower lobe,2 in right middle lobe,and the other 2 in left lower lobe.Among the 7 cases:6 cases were of peripheral type and 1 case was of central type.The peripheral-typed lesions of 5 cases had clear margin and 3 of them were lobulated.Three massess were homogenous in density,and the other 4 were inhomogeneous in density with formation of central cavity or calcification.After intravenous contrast administration.Three lesions showed homogeneous enhancement,and the other 4 lesions had inhomogeneous enhancement.The lesions with diameter larger than 6 cm showed marginal or patch-like enhancement.Five cases had pleural or chest walls invasion.Two cases had mediastinal lymph nodes metastases.One case had multiple remote metastasis.Conclusion There are some relatively specific features of lung SC on chest radiography and CT,which may be helpful for diagnosis.

BACKGROUND:Previous studies on immunosuppression and anti-rejection after organ transplantation mainly focused on effects of T lymphocytes-mediated immune response and immunosuppressive agents on T lymphocytes. Effects of dendritic cel s were unclear. The manifestation and mechanism of immunosuppressive agent effects on dendritic cel s are not identical. OBJECTIVE:To compare the effects of different immunosuppressive agents on expression and function of costimulatory molecules of dendritic cel s, and to explore the mechanism of action of immunosuppressive agents. METHODS:20μg/L rapamycin, 0.04 mg/L mycophenolate, 10μg/L tacrolimus and 1 mg/L cyclosporine A were separately added during bone marrow cel s of C57BL/6 mice were differentiated into dendritic cel s. RESULTS AND CONCLUSION:Flow cytometry results revealed that CD40 expression in each group:rapamycin0.05). One-way mixed lymphocyte reaction results displayed dendritic cel costimulatory T cel proliferation in each group:rapamycin

Objective To research the jugular foramen,internal auditory pore (IAP)and the turning point between its components by imageological methods and to provide theoretical basis for retrosigmoid approach in the operation of acoustic neurinoma.Methods The skulls of 100 volunteers were scanned to get the final result with thin-section computed tomographic image. High-resolution spiral CT multiplane reformation was used to reform images that were parallel to the Frankfort horizontal plane to measure the distance between the turning point of retrosigmoid (A),the edge of jugular foramen(B)and the lower edge of the internal auditory canal(C)(denoted AC,AB,BC) and the shortest distance from the jugular foramen to AC.The angles between AC,AB and sagittal axis(α,β) were measured.Results The distance of AC was (44.94 ± 3.84)mm,the distance of AB was (43.68 ± 4.56)mm.The distance of BC was (6.15 ±2.04)mm,and the shortest distance between jugular foramen and AC was (5.21±0.23)mm.The angleαwas measured as (39.50±4.74)°,and the angleβwas measured as (46.35± 5.51)°.Conclusion The research measure the distance and angle between entry points and landmarks of retrosigmoid approach and the safe distance.

It has gradually become a consensus in the industry that the traditional Chinese medicine gypsum should be decocted first, but the understanding of decocting method is not completely unified in the works of doctors since ancient times, and there are occasional disputes about whether it is necessary to decocting first. In this study, the phase determination, physical and chemical characterization, qualitative and quantitative analysis of inorganic and organic components of the decoctions of herbal pairs and the whole prescription Maxingshigan decoction with gypsum as the center, and the pre-decoctions and co-decoctions of them were carried out to explore the scientific connotation of the pre-decoctions of gypsum. Results show that decoction phases were different between the co-decoctions and pre-decoctions of licorice-gypsum (Gancao-Shigao, GC-SG), ephedra-gypsum (Mahuang-Shigao, MH-SG) and almond-gypsum (Xingren-Shigao, XR-SG). The results of the micromorphology, particle size and zeta potential of herbal pairs and prescription (Quanfang, QF) showed that the supramolecular particles in pre-decoctions were smaller, more uniform and more stable than the co-decoctions. The results of organic components analysis showed that different cooking methods did not change the organic composition and content. ICP-OES results showed that the content of inorganic components in pre-decoctions was higher than in co-decoctions for the same boiling time of gypsum. The IR results showed that the pre-decoctions had stronger chemical functional group effect than the co-decoctions. To sum up, compared with the co-decoction, the pre-decoction of gypsum has different phase state and chemical composition interaction, and the difference of inorganic composition is an important material basis affecting the change of phase state compared with the co-decoction. It indicates that the material basis of traditional Chinese medicine decoction is indeed different whether gypsum is decocted first or not, which can provide a basis for the clinical application of decocted gypsum.

AIMTo investigate the change of NMDAR1 (zeta 1) subunit expression in temple cortex, frontal lobe, hippocampus and cerebellum of three different group rat after 98 dB wide frequency noise exposure.

METHODSWestern Blot and RT-PCR technique, combined with auditory brainstem response (ABR) measurement.

RESULTS(1) Expressions of NMDAR1 (zeta 1) subunit in frontal cortex, temple cortex, hippocampus and cerebellum have no difference, but AD model rat is much weaker than the control group. (2) Expression of NMDAR2A (epsilon 1) in temple cortex for physiological saline groups rat have a mostly increase (plus noise), moreover, those are weakest expression in hippocampus. NMDAR1 (zeta 1) subunit in cerebellum have highest expression, moreover, it is weakest in temple cortex. (3) NMDAR1 (zeta1), NMDAR2A (epsilon 1) subunit expression in hippocampus for three groups rat have a down-regulation after adding noise. (4) NMDAR1 (zeta 1), NMDAR2A (epsilon 1) subunit mRNA expression in control group have no remarkable difference in different cortex. (5) Expressions of NMDAR2A (epsilon 1) in frontal temple cortex, hippocampus for AD model rat are less than that of other groups, weakest in cerebellum, weaker in frontal.

CONCLUSIONWide band frequency noise can reduce the expression of NMDAR1 (zeta 1) subunit in hippocampus and cerebellum of AD model rat, however, the way of regulation is not in the mRNA level. Wide band frequency noise can inhibit the expression of NMDAR2A (epsilon 1) in hippocampus, temple cortex of AD model rat, which has been regulated by mRNA level and have cortex area difference.

Animals ; Brain ; metabolism ; Cerebral Cortex ; metabolism ; Evoked Potentials, Auditory, Brain Stem ; Glutamic Acid ; poisoning ; Noise ; adverse effects ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate ; metabolism

OBJECTIVETo investigate the changes of hipbone biomechanics after the resection of ischiopubic tumors and their relationships with the complications in the convalescent stage, and directing the postoperative pelvic reconstruction.

METHODSDICOM data were used to create an intact hipbone finite element model and postoperative model. The biomechanical indices on the same region in the two models under the same boundary condition were compared. The differences of displacement, stress, and strain of the two models were analyzed with statistical methods.

RESULTSThe distribution areas of the hipbone nodes' displacement, stress, and strain were similar before and after the simulated operation. The sacroiliac joint nodes' displacement (P=0.040) and strain (P=0.000), and the acetabular roof nodes' stress (P=0.000) and strain (P=0.005) of two models had significant differences, respectively.But the sacroiliac joint nodes' stress (P=0.076) and the greater sciatic notch nodes' stress (P=0.825) and strain (P=0.506) did not have significant differences.

CONCLUSIONSThe resection of ischiopubic tumors mainly affect the biomechanical states of the homolateral sacroiliac joint and acetabular roof. The complications in the convalescent stage are due to the biomechanical changes of the sacroiliac joint and the acetabular roof and disappearances of the stabilization and connection functions of the pubic symphysis and superior ramus of pubis.

Acetabulum ; physiopathology ; Biomechanical Phenomena ; Finite Element Analysis ; Humans ; Pelvic Bones ; physiopathology ; Pelvic Neoplasms ; physiopathology ; surgery ; Sacroiliac Joint ; physiopathology

0.05).Moreover,the growth curves of the two kinds of cells were similar.Con- clusions The cell growth properties of cultured transplanted rabbit SMG are similar to that of normal SMG,the cytobiological charac- teristic of transplanted autologous free rabbit SMG are not changed evidently.

Objective To investigate the efficacy of stereotactic lesioning of the amygadala and hippocampus for treatment of epilepsy in the mesial temporal lobe, and explore the accuracy of lateralization and localization of interictal epileptic discharge recorded by depth electrode. Methods Twenty-one patients with intractable epilepsy of the temporal lobe,admitted to our hospital from July 1998 to October 2003 and underwent stereotactic lesioning of the amygadala and hippocampus,were chosen in our study. The frequentcy of Interictal epileptic discharge recorded by depth electrode and occurred preoperatively and postoperatively were compared Results Follow-up was performed in 21patients:6 with Engel Ⅰ,2 with Engel Ⅱ,5 with Engel Ⅲ,3 with Engel Ⅳ and 5 with Engel V.Thirteen patients enjoyed good effect and ineffective result was noted in 8,with an effective rate reaching 62％.No consistent changes of interictal epileptic discharge recorded by depth electrode occurred preoperatively.Conclusion Stereotactic lesioning of the amygadala and hippocampus is safe and effective in treating patients with epilepsy in the mesial temporal lobe.The interictal epileptic discharge can supply useful lateralizing information,but has little localizing value.

Objective:To investigate the clinical efficacy and complications of Memokath prostatic stent in the treatment of urinary retention due to benign prostatic hyperplasia.Methods:Two BPH patients (age 61 and 80 years)had Memokath prostatic stent inserted with flexible cystoscopy in October,2016.Both of them were in urethral catheter indwelling status.Pre-operative International Prostate Symptom Score (IPSS)were 26 and 24 respectively.Prostate volumes were 33.4 and 32.9 mL.Results:Both patients were successfully operated,and the operation time were 30,20 min,respectively.Both patients regained the ability of spontaneous urination immediately after operation.The postoperative PVR was negative three weeks and one week after operation.IPSS were 6 and 12.Maximum flow rates were 24,14 mL/s.No serious complications such as urinary incontinence, urinary tract infection and stent dislocation were observed in both patients. Conclusions:Memokath spiral thermo-expandable prostatic stent is simple,safe,and effective in the treatment of urinary tract obstruction in the prostate.Further observation is necessary for long-term efficacy and complications.

OBJECTIVESTo explore the effects of E-selectin, ICAM-1 and their ligands on the adhesive metastasis of hepatocellular carcinoma (HCC), and to select possible anti-adhesion drugs for hepatocellular carcinoma metastasis.

METHODS78 HCC patients were analyzed with the correlation of clinical features to the expression levels of E-selectin, sLeX, sLeA and CD44v6 in the tumor tissue. The adhesion between HepG2 and endothelial cell lines was examined by solid phase adhesion assay in vitro. Two kinds of drugs were accessed for their anti-adhesion ability.

RESULTSThe positive rate of E-selectin in vascular endothelia cells adjacent to cancer nest is 70.51%, and which of sLeX, sLeA, CD44v6 within tumor cells is 64.10%, 69.23%, 62.90% respectively. The patients' life span is closely related with the positive expression of sLeX, sLeA, CD44v6 (P = 0.008, 0.001, 0.022). The positive expression of E-selectin, sLeX and sLeA is significantly correlated to portal vein tumor thrombus (PVTT), preoperative extrahepatic metastasis, and satellite foci, but not to the size of tumor and AFP. The level of CD44v6 expression is significantly correlated to patient's survival time. The expression levels of E-selectin and ICAM-1 are remarkably higher after ED25 and ECV304 cell lines be activated. Meanwhile the adhesive ability of HepG2 to endothelial cell is mediated. Dexamethasone, tanshinone IIA are able to block this adhesion at low concentration.

CONCLUSIONThe expression levels of E-selectin, sLeX, sLeA and CD44v6 are closely correlated with clinical features. E-selectin, ICAM-1 and their ligands are important molecules of hepatocellular carcinoma and endothelial cells to tumor adhesive metastasis. Dexamethasone, tanshinone II A can be hopefully used as anti-adhesion drugs.

Adult ; Aged ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Cell Adhesion ; E-Selectin ; metabolism ; Endothelium ; metabolism ; Female ; Hep G2 Cells ; Humans ; Intercellular Adhesion Molecule-1 ; metabolism ; Ligands ; Liver Neoplasms ; metabolism ; pathology ; Male ; Middle Aged ; Neoplasm Metastasis ; Prognosis ; Young Adult