Objective:To explore the histopathological change of the fragrant pig skin induced by focus ultrasound repetition irradiation to offer experiment basis for the safety and effectivessness of clinically treating postherpetic neuralgia(PHN) by repetition irradiation.Methods:The pig skin was irradiated once every other day,altogether three,with irradiation power as 2W,and frequency as 10.06MHz,The skin change was observed under light microscope and electron microscope.Results:Hyperemia and edema in irradiation area after irradiation were observed instantly to the eye;Under light microscope there were hyperemia and edema in epidermis,angiotelectasis and inflammatory infiltrating,and find coagulative necrosis in slice was not observed.Under electron microscope,instantly after ultrasound irradiation every other day,endothelial cell of blood vessel can be found mitochondria swelling and more micropinocytotic vesicles,mitochondria swelling and rough endoplasmic reticulum dilatation were noted for in fibroblasts,and mitochondfia swelling for nerve fibre.Conclusions:(1)There is reversibile lesion in epidermis under this dose of ultrasound.(2)Skins don’t accumulate lesion every other day after irradiation repeatly .which illustrates that it is effective and safe to treat postherpetic neuralgia by ultrasound irradiation repeatly.

Objective:To study the effects of LAMS on modulation of HL-60 cell strain.Methods:MTT was used to determine the inhibiting action in the different concentration of LAMS on HL-60 cell strain.The attitude of Sub-G1 peak in DNA histogram was examined by FCM.NF-?B expression affected by LAMS was determined by using immunohistochemical stainings.Results:With the increase of LAMS concentration,the inhibiting effects on multiplication of HL-60 cells were decreased.After treatment of HL-60 cells with 0.75?g/ml LAMS for 6h?12h?24h,the expression of P65 was the most significant at 12h,while the expression of IKb? was the most significant at 6h.The exptession of NF-?B reduced in LAMS group without time-dependent pattern.Conclusion:LAMS can induce HL-60 cells apoptosis.LAMS can modulate the expression of NF-?B.It also suggested that LAMS had an influence at molecular level.

Scientific and technological cooperation plays a key role in improving innovative capabilities and speeding up achievement transformation. Promoting self-discipline in morality, strengthening restraint by rules and regulations and enhancing legal protection of intellectual property are some of the key links in perfecting the credit system and consummating large-scale scientific and technological cooperation. Adopting the "coordinate signature system" for significant achievements through large-scale scientific and technological cooperation is the driving force behind such cooperation. Establishing information and experimental technology platforms is the basis and supplementary, means of scientific and technological cooperation while setting up a talent flow and excitation system and perfecting the system of resources integration and sharing are beneficial to the creation of a sound environment for large-scale scientific and technological cooperation.

In this paper, LM35 tempeture sensor is tested and shows good linear characteristics between 30 ℃ and 60 ℃, which provides a theoretical basis for making digital thermometer. A/D converting chip and 89c51 single chip micro -processor are employed in this digital body thermometer based on LM35. It possesses such advantages as low cost, high accuracy and excellent stability.

Adolescent ; Adult ; Diagnosis, Differential ; Humans ; Male ; Mesothelioma ; pathology ; surgery ; Peritoneal Neoplasms ; pathology ; surgery ; Peritoneum ; pathology ; surgery

Objective To explore predictive factors of early-onset complications in children with acute bacterial meningitis.Method Retrospective study was made on clinical data and predictive factors of early-onset complications of 75 children with acute bacterial meningitis who were treated in our hospital during 2000-2005.Results The incidence of early-onset complications in children with acute bacterial meningitis was 50.7%,subdural effusions and hydrocephalus occured freqiently.The incidence of early-onset complications were closely correlated with onset age,coma,seizure,cerebrospinal fluid(CSF) protein concentration and CSF glucose concentration.Onset age younger than 12 months(OR=11.876,95% CI:2.592-54.33 P

Adenocarcinoma, Mucinous ; metabolism ; pathology ; Calbindin 2 ; Carcinoma, Endometrioid ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Humans ; Immunohistochemistry ; methods ; Inhibins ; metabolism ; Keratin-7 ; metabolism ; Mucin-1 ; metabolism ; Ovarian Neoplasms ; metabolism ; pathology ; S100 Calcium Binding Protein G ; metabolism ; Sex Cord-Gonadal Stromal Tumors ; metabolism ; pathology

OBJECTIVETo measure the changes of plantar pressure of the first tarsometatarsal joint fracture and dislocation by three different implants to provide experimental reference in selecting implants.

METHODSEight fresh foot specimens were made into the models of the first tarsometatarsal joint fracture and dislocation, which were fixed with 3.5 mm cortical screw, 1/4 tubular plate and compressive staple in turn. After the loading of 600 N, the changes of the plantar pressure in forefoot were measured by the method of the F-scan plantar pressure system.

RESULTSAfter first tarsometatarsal joint fracture and dislocation, the peak pressure under the first metatarsal head would decrease, while the pressure under the second metatarsal head would increased,whose differences were statistically significant (P<0.05). When the first tarsometatarsal joint was fixed with screw or plate respectively; the peak pressure under the two metatarsal heads would tend to be normal. However,the staple fixation showed the statistical significant difference compared with normal state, although the peak pressure under the first and second metatarsal heads were recovered in some extent(P<0.05).

CONCLUSIONAfter the first tarsometatarsal joint fracture-dislocation, the plantar pressure might be compensated partly by the adjacent metatarsal heads according to the regulation of the load transfer mechanism. While the first tarsometatarsal joint fracture-dislocation was fixated by screw or plate, the plantar pressure of the forefoot would return to the normal state. However,if the joint was fixated by the staple, it would still be difficult to return the plantar pressure to be normal.

Foot Joints ; injuries ; surgery ; Forefoot, Human ; physiology ; Fracture Fixation, Internal ; methods ; Fractures, Bone ; surgery ; Humans ; Joint Dislocations ; surgery ; Pressure

Objective To explore the pathologic feature of children with kidney disease.Methods A retrospective analysis on renal bio-psy findings in 246 cases of children patients.Pathological classification was made according to the modified WHO criteria of 1995 for renal pathology.Results Of the 246 children,104 cases were diagnosed as primary glomerulonephritis,accounting for 42.28% of the total cases,136 cases as secondary glomerulonephritis,accounting for 42.28%,3 cases as hereditary nephritis,accounting for 1.22%,and 3 cases as unclassified renal disease,accounting for 1.22%.In primary glomerulonephritis,66 cases were diagnosed as nephrotic syndrome,23 cases as persistent glomeruloneplritis,8 cases as acute nephritis syndrome,3 cases as chronic nephritis syndrome,2 cases as isolated proteinuria,1 case as rapidly progressive glomerulonephritis,1 case as isolated hematuria.IgA nephropathy was the most frequent pathological type,accounting for 15.85%(39 cases),followed by mesangial proliferative glomerulonephritis,minimal change disease,endocapillary proliferative glomerulinephritis,IgM nephropathy,membranous nephropathy,focal segmental glomerulosclerosis,and minor lesion nephropathy.In secondary glomerulonephritis,Henoch-Schonlein purpura nephritis accounting for 48.37%(119 cases),followed by hepatitis B virus associated nephritis(11 cases) and lupus nephritis(6 cases).In hereditary nephritis,there were 2 cases with thin glomerular basement disease and 1 case with Alport syndrome.Conclusions Among the 246 cases of renal biopsy data,the secondary glomerulonephritis,especially Henoch-Schonlein purpura nephritis,is more common than primary glomerulonephritis.In primary glomerular diseases,IgA nephropathy is the most frequent pathological type.

Objective: To employ the subtraction technique of 64-slice spiral CT angiography for intra- and extra-cranial arteries imaging, so as to study the managing method and assess the clinical outcome. Methods: The pre-contrast and post-contrast images of 100 patients were obtained by 64-slice spiral CT angiography. A special head holder was used during the scanning to guarantee the accurate overlapping of the pre-contrast and post-contrast images. A reconstructed three-dimensional model of the pre-contrast bone dataset was subtracted from the post-contrast dataset to produce the subtracted images. (1) An experienced operator performed the conventional and subtraction reconstructions; the periods for image generation of both methods were recorded and compared. (2) The quality of the images were evaluated and graded (grade 1-5) by 2 experienced radiologists in a double-blinded manner. Results: (1) The new subtraction technique using 64-slice spiral CT angiography needed significantly less time than the conventional method did (11.01±1.89 min vs 14.30±2.25 min, P<0.01). (2)The correlation coefficient of the results of 2 radiologists was 0.87. The score of image quality by subtraction 64-slice spiral CT angiography was significantly higher than that by the conventional method (4.22±050 vs 2.93±0.36, P<0.05). Conclusion: Subtraction 64-slice spiral CT angiography is easy to use and time saving for intra- and extra-cranial artery imaging; it does not has the difficulty of separating artery from bone and is worth popularizing in clinic.