Objective To assess the value of ultrasound in evaluating clinical effect of treatment of hysteromyoma uterine by selective uterine artery embolization ( UAE ) .Methods 42 hysteromyoma uterine in 30 cases were examed by color doppler ultrasound befort and after uterine artery embolization with one year monthly.The size , morphology,internal echotexture and doppler signal of the uterus and myoma were observed , and the doppler signal of uterine artery , peripheral and interal vascular in myoma were measured . Results There was significant difference of the average colume of the uterus and its myoma between preoperation and postoperation ( 491.37 cm3 vs 236.75 cm3,102.33 cm3 vs 48.87 cm3 respectively,?

Objective To investigate the effect of hysterectomy and uterine arterial embolization on the function of ovary.Methods The serum concentrations of estrin(E2), progestogen(P),fouicule-stimulating hormone(FSH),luteotropic hormone(LH) and prolaction(PRL) were measured in 18 patients undergone hysterectomy (group Ⅰ),15 patients undergone uterine arterial emboliation(group Ⅱ) and 30normal women (group Ⅲ or control group).These five hormones were compared in each group.Results The serum concentrations of E2 and P in the group Ⅰ were lower than that in group Ⅲ, there was significant difference between them.The serum concentrations of E2 and P in group Ⅱ and group Ⅲ was no significant difference.Conclusion Hysterectomy has significant effects on the function of ovary,while uterine arterial embolization has not.

BACKGROUND: Stem cell factors are hypoxia-induced neural regeneration factors. They stimulate animals' neural regeneration.OBJECTIVE: To observe Nestin and stem cell factor mRNA expressions after ischemia/reperfusion injury in rat brain, and to analyze the time rule of the two.DESIGN: A randomized controlled animal experiment.SETTING: Department of Ultrasound Diagnosis, Affdiated Hospital of Qingdao University Medical College.MATERIALS: Thirty-six healthy female adult Sprague-Dawley (SD) rats were provided by the Shanghai Laboratory Animal Center, Chinese Academy of Science. Nestin and stem cell factor mRNA in situ hybridization kits and 3,3'-diaminobenzidine (DAB)kit were provided by Boster Bioengineering Co.,Ltd (Wuhan, China).METHODS: This study was performed at the Shangdong Key Laboratory for Prevention and Treatment of Encephalopathy from January to June 2005. Thirty-two rats were created into models of ischemia/reperfusion models by occluding left middle cerebral artery with suture. At ischemia 1.5 hours and reperfusion 2, 6, 12, 24 hours, 2, 3, 7, 14 days, 4 rats were separately used in order to observe the expressions of Nestin and stem cell factor mRNA. The other 4 rats were used for sham-operation,in which, suture insertion was omitted, and the other procedures were identical to experimental groups. The expressions of Nestin and stem cell factor mRNA were detected in the cortex, corpora striatum and paraventricular nucleus region in rat brain by in situ hybridization.MAIN OUTCOME MEASURES: Nestin and stem cell factor mRNA expressions in the cortex, corpora striatum and paraventricular nucleus region in rat brain.RESULTS: Thirty-six rats were included in the final analysis. Nestin mRNA and stem cell factor were weakly expressed in the cortex, corpora striatum and paraventricular nucleus region in rats of sham-operation group. After ischemia/reperfusion, Nestin mRNA expression at each time point was significandy higher in the experimental groups (except in the cortex at ischemia 1.5 hours and reperfusion 2 hours, in the corpora striatum at ischemia 1.5 hours and reperfusion 2 and 6 hours and in the paraventricular nucleus region at ischemia 1.5 hours and reperfusion 2, 6 hours and 14 days) than in the sham-operation group (P＜0.05). While stem cell factor mRNA expression at each time point was significandy higher in the experimental groups (except in the cortex at ischemia 1.5 hours and reperfusion 2,6 and 12 hours, in the corpora striatum at ischemia 1.5 hours and reperfusion 2 and 6 hours and in the paraventricular nucleus region at ischemia 1.5 hours and reperfusion 2 hours and 14 days) than in the sham-operation group (P＜0.05).CONCLUSION: The time rule of stem cell factor mRNA expression is basically the same as that of neural stem cell proliferation. It indicates that following cerebral ischemia/reperfusion, stem cell factor mRNA expression may promote the proliferation of neural stem cells.

Objective To investigate the ultrasonographic characteristics of angiofollicular lymph node hyperplasia (AFH). Methods The ultrasonographic and pathological characteristics in nine patients with pathologically confirmed AFH were retrospectively analyzed. Results All the 9 patients were hyaline vascular type of AFH. Ultrasonic manifestations included complete capsule, regular shape and clear boundary, internal solide low echo, mild posterior echo enhancement and without cystic degeneration, which was relative to the less incidence of necrosis and hemorrhage on pathologic findings. Calcification in the lesions were found in two patients. Color Doppler flow signals were observed in the periphery of lesions in 9 patients, and rich flow signals were observed in the center of lesions in 2 of them. Conclusion The ultrasonic manifestations of AFH has its own characteristics. The ultrasonic manifestations combined with clinical features are helpful to the differential diagnosis. The final diagnosis depends on pathologic examination.

Combined with method of ketoconazole resistance screening, a 7alpha,15alpha-diOH-DHEA high-producing mutant Colletotrichum lini ST-1 was obtained by compound mutation of NTG and low energy N+ ion beam implantation. With the substrate concentration of 10 g/L DHEA, the molar yield of 7alpha,15alpha-diOH-DHEA reached 34.2%, increased by 46.2% than that of the original strain. Then we optimized the medium. First, Plackett-Burman design was used to evaluate the effects of medium components on molar yield of the product. Results show that glucose, yeast extract and MgSO4 x 7H2O were the important parameters for the biotransformation process. Subsequently, the path of steepest ascent was used to approach the optimal levels. To obtain the optimal levels, central composite design and response surface analysis were carried out. The optimal medium was as follows (g/L): glucose 26.34, yeast extract 12.15, corn flour 3.00, FeSO4 x 7H2O 0.015, MgSO4 x 7H2O 0.14, KH2PO4 0.90. Under the optimal conditions, the molar yield of 7alpha,15alpha-diOH-DHEA reached 49.3%, which was 44.2% higher than that of using the medium before optimization.
Biotransformation ; Colletotrichum ; metabolism ; Dehydroepiandrosterone ; chemistry ; Fermentation ; Hydroxylation ; Industrial Microbiology ; Mutation

AIM To study the effects of cyproheptadine (Cyp) on endocrine functions and pituitary adrenalcortex axid in rats and its mechanism METHODS Radioimmunoassay(RIA)was used to measure the serum levels of ACTH and cortisone Ultramicrostructure of the ACTH cells and adrenalcortex and the calmodulin(CaM) mRNA expression of the pituitary and adrenalcortex were observed by electron microscope and the quantity PCR technique RESULTS Cyp 2 3 and 4 6 mg?kg -1 ?d -1 , ig for 14 d had significantly reduced the serum levels of ACTH and cortisone ( P

Objective To investigate the clinical value of echo-tracking(ET) technique in evaluating the carotid elasticity in patients with hyperuricemia and hyperuricemia combined with hyperlipidemia.Methods One hundred and twenty patients with hyperuricemia were divided into two group:group of hyperuricemia (group A) and group of hyperuricemia combined with hyperlipidemia (group B).Sixty normal persons were served as the control group.ET was used to measure the carotid artery elastic modulus including stiffness parameters (β),pressure-strain elastic modulus (Ep),arterial compliance (AC),augmentation index (AI) and pulse wave conducting velocity (PWVβ).Then the statistical data were analyzed to observe the changes of each parameter.Results In the comparison of three groups,elastic function index β,Ep,PWVβ and AI in group A and group B were higher than those of control group (P ＜0.05) ;however,AC was lower than that of control group (P ＜ 0.05).Compared with group A,elastic function index β,Ep,PWVβ,AI was higher in group B,while the AC was lower than that of group B (P ＜0.05).Conclusions ET may be helpful to prevent atherosclerotic changes and to provide the basis for the clinical diagonosis and treatment atherosclerotic changes.

Objective To explore the value of virtual touch tissue quantification(VTQ) on the early diagnosis of gouty nephropathy.Methods 180 healthy controls and 109 gout patients including 57 cases with normal renal function,and 52 cases with gouty nephropathy were measured by VTQ in this study.The shear wave velocity (SWV) of renal cortex,renal medulla and renal sinus were measured using virtual touch tissue quantification(VTQ).The recorded SWV value was compared.Results In all groups,the SWV of renal cortex was the highest with significant difference (P ＜0.01).The SWV of renal cortex in gouty nephropathy group was higher than those in control group (t =0.342,P =0.026).The SWV of renal medulla and sinus in gout with normal renal function group and gouty nephropathy group were higher than those in control group,respectively (gout with normal renal function group:t =-0.311,-0.628; P =0.012,0.000;gouty nephropathy group:t =-0.369,-0.701 ; P =0.000,0.000).The SWV of renal cortex,medulla and sinus had no significant difference between gout patients with normal renal function and gouty nephropathy patients(t =0.117,-0.059,-0.073; P =0.232,0.575,0.523).Conclusions The VTQ technology could quantitatively evaluate tissue elasticity of the gout patients and provide evidence for the early diagnosis of gouty nephropathy.

Objective To evaluate the clinical value of multi-tomographic imaging mode of three-dimensional ultrasound combined with surface imaging in diagnosing and staging bladder tumors.Methods Seventy-five patients were examined with three-dimensional ultrasound and two-dimensional ultrasound.In addition,54 cases were undergone preoperative multislice spiral CT.All cases were proved by pathology after operation.Results The qualitation accuracy in the diagnosis of bladder tumor with two-dimensional ultrasound was 93.3%(70/75) and that of three-dimensional ultrasound was 98.7%(74/75).The staging accuracy rates with two-dimensional ultrasound and three-dimensional ultrasound were 83.5%(106/127) and 93.2%(123/132) respectively.The difference of bladder tumor staging between three-dimensional ultrasound and two-dimensional ultrasound was significant (P＜0.05).The qualitation accuracy in the diagnosis of bladder tumor with CT was 90.7%(49/54).The preoperative staging rate of CT was 79.7%(59/74),compared with that of three-dimensional ultrasound,the difference was significant(P＜0.05).Conclusions Multi-tomographic imaging mode of three-dimensional ultrasound combined with surface imaging can provide useful information and makes an improvement in detecting and staging bladder tumors.

Objective To explore the value of virtual touch tissue quantification (VTQ ) in the diagnosis of pancreas early damage of patients with hyperuricemia(HUA) .Methods Sixty‐five cases of patients with normal glucose tolerance and HUA (HUA group) and 42 cases of patients with HUA and impaired glucose tolerance (IGT group) were included in the study ,and other 150 health subjects were taken as control group .After routine ultrasound examination ,the pancreas shear wave velocity values (Vs) of different groups were measured by VTQ technology ,and the results were analyzed .Results Compared with the control group ,the rate of the abnormai ultrasonogram of pancreas in IGT group showed obvious increasing trend but there was no significantly difference between the other groups(both P >0 0.5) .The Vs of the normal control group ,HUA group ,and IGT group were (1 2.1 ± 0 1.5)m/s ,(1 4.1 ± 0 1.3)m/s and (1 5.9 ± 0 1.5)m/s ,respectively .The Vs of HUA group and IGT group were higher than that of the control group (both P <0 0.5) ,and the Vs of IGT group was significantly higher than that of HUA group ( P <0 0.5) .Conclusions Hyperuricemia may cause pancreas damage ,and with the disease progress ,the pancreas damage became more serious ,and VTQ technology may play an important role on the diagnosis of pancreas early damage in HUA patients .