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Objective To study the causes, clinical feature,diagnoses and prognosis of pseudoprecocious puberty. Methods Thirty-eight cases with pseudoprecocious puberty were diagnosed by the serum LH and FSH of GnRHa stimulation test, pelvic ultrasonography and bone age assessment; they were treated and followed up. Results Peaks of LH were(0.49?0.48) IU/L, peaks of FSH were(0.54?0.78) IU/L, the level of E2 in 26 cases increased (36.11?15.70) ng/L,17-hydroxyprogesterone of 1 case was beyond 266 nmol/L. All cases showed hysterauxesis (3.98?1.18) mL. Cases of wrong contraceptive intake were 29,5 cases of McCune-Albright syndrome,2 cases of ovarian cyst, 1 case of ovarian granular cell tumor,1 case of congenital adrenal hyperplasia. Conclusions The causes of pseudoprecocious puberty are multifactors. Early diagnosis,therapy,follow-up are very important for prognosis.

Objective To analyze X-ray ,CT and MRI findings of Charcot’s joint.Methods 24 cases of Charcot’s joint were collected,there were 11 males and 13 females.24 cases were examined with radiography,9 with CT ,5 with MRI,and 2 were examined with all three techniques.X-ray,CT and MRI imaging findings of Charcot’s joint were analysed.Results There were two types of Charcot’s joint,hypertrophic(12 cases) and atrophic(12 cases).X-ray and CT findings of hypertrophic type were hyperostotic osteosclerosis with osteophytes,periarticular soft tissue swelling and ossification.While the atrophic type appeared as extensive bone resorption and disappearance,periarticular debris and soft tissue swelling,articular dislocation.These imaging findings of Charcot’s joint also could be showed by MRI.The joint capsule thickened periarticular soft tissue markedly enhanced after Gd-DTPA was administrated with definite medial margin.Conclusion Charcot’s joint is of typical imaging appearances.

Objective To investigate the effects of adiponectin on angiotensin Ⅱ-induced extracellular matrix production of mesangial cells(MCs) and its possible signaling pathway.Methods RT-PCR and indirect immunofluorescence examination were performed to detect the adiponectin receptors in MCs.Quantitative real-time PCR and enzyme-linked immunosorbent assay (ELISA) were used to observe the effects of adiponectin on angiotensin Ⅱ-induced transforming growth factor β1(TGF-β1) and fibronectin production of MCs.Western blotting was used to measure the ratio of p-AMPK to total AMPK.Results(1)Adiponectin receptors 1 and 2 were found in MCs. (2)The up-regulated mRNA and protein expression of TGF-β1 and fibronectin in MCs induced with 10-7 mol/L angiotensin Ⅱ (Ang Ⅱ) was significantly inhibited by 10 mg/L adiponectin (P＜0.05).(3)The p-AMPK/AMPK ratio was significantly increased after incubation with adiponectin for 15 min and 30 min(vs 0 min, P＜0.05), which suggested that adiponectin could activate the AMPK signaling pathway in MCs.The activation of AMPK signaling pathway was blocked by 40 μmol/L compound C, a specific inhibitor of AMPK. (4)The inhibitory effects of adiponectinonangiotensin Ⅱ-upregulatedTGF-β1andfibronectinexpressioninMCswere significantly relieved by 40 μmol/L compound C (P＜0.05).Conclusions There are adiponectin receptors 1 and 2 in MCs.Adiponectin has inhibitory effects on the angiotensin Ⅱ-upregulated TGF-β1and fibronectin expression in MCs.AMPK signaling pathway may play an important role in the effects of adiponectin above-mentioned.

Objective To investigate the feasibility of differentiation between prostate cancer and prostatitis by using metabolic ratios provided by 3D 1H Magnetic Resonance Spectroscopic Imaging (MRSI). Methods Metabolic changes were evaluated in 42 voxels with prostate cancer and 30 voxels with prostatitis in the peripheral zone using MRSI. The results were based on the pathologic findings by biopsy. The (choline + creatine)/Citrate (CC/C) ratio and the changes of choline and citrate levels were evaluated in each voxel with cancer or prostatitis, t test was used to determine the power of the CC/C ratio in differentiation between prostate cancer and prostatitis. Results The CC/C ratio for cancer voxels (1.28±0.41) was significantly different from the ratio in the voxles with prostatitis (1.03±0.40), t=6.45, P<0.05, due to greatly increased choline level in the cancer voxels. When CC/C ratio of 0.8 was taken as the criteria for the diagnois of prostate cancer, the sensitivity, specificity and accuracy were 65.5%, 71.4% and 66.7%, respectively. Positive predictive value(PPV)and negative predictive value(NPV) were 90.5% and 33.3%, respectively. The CC/C ratio was higher than 0.86 in 66.7% voxels with prostatitis (20 voxels of total 30 voxels), which mostly depended on the level of choline. When citrate level was used as an auxiliary index to evaluate prostatitis (Cit/norm, Cit≥0.75), the misdiagnosis rate of prostate cancer was reduced to 26.6%(8 voxels of total 30 voxels). Conclusions The metabolic ratio of CC/C can be used to differentiate prostate cancer from prostatitis. The misdiagnosis rate is reduced when citrate is not or slightly decreased relative to normal citrate level (Cit/norm, Cit≥0.75).

Base Sequence ; Child, Preschool ; Humans ; Male ; Point Mutation ; Polymerase Chain Reaction ; Puberty, Precocious ; genetics ; Receptors, LHRH ; genetics ; Sequence Analysis, DNA ; Testosterone ; blood

Aged ; Biomarkers ; blood ; Cobalt ; Female ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; diagnosis ; Myocardial Ischemia ; diagnosis ; Serum Albumin ; metabolism ; Spectrophotometry

OBJECTIVE: To observe waveform differences among ocular vestibular evoked myogenic potentials (ACS-oVEMP) elicited by different types of air conducted sound in normal young Chinese subjects. METHOD: Twenty-two adult volunteers (44 ears) were recruited as research subjects including 12 males and 10 females aged between 18 and 35. Five hundred Hz tone burst, 125 Hz tone burst and click were employed as stimulus for conventional ACS-oVEMP examinations in bilateral ears of each subject. The response rate, threshold, n I latency, p I latency, n I-p I latency interval, amplitude and inter-aural asymmetry were recorded and compared among groups. RESULT: The response rate was 100% (44/44) in 500 Hz tone burst group, 40.9% (18/44) in 125 Hz tone burst group and 29.6% (12/44) in click group There were statistical significant differences between the 500 Hz tone burst group and the other groups (P < 0.05). Waveform amplitude was the largest in the 500 Hz tone burst group (7.3 +/- 5.5) muV than that in the 125 Hz tone burst group (3.8 +/- 1.5) muV and that in the click group (5.8 +/- 1.3) muV, which had statistically significant differences between the former and the later two groups (P < 0.05). Other waveform parameters presented similar differeces. CONCLUSION ACS-oVEMP waveforms could be largely affected by different stimulus. 500 Hz tone burst was the best stimulus with highest response rate, biggest amplitude and therefore most easily recognizable waveform in ACS-oVEMP examination.
Acoustic Stimulation ; Adolescent ; Adult ; Asian Continental Ancestry Group ; Female ; Humans ; Male ; Vestibular Evoked Myogenic Potentials ; Young Adult

AlM:To compare the results of lOL Master, contact and immersion A-scan ultrasound measurements for anterior chamber depth ( ACD ) , and evaluate the difference and consistency.METHODS:Fifty-eight cases (98 eyes) with age-related cataract during July to October in 2013 did the A-scan ultrasound with contact and immersion measurements and lOL Master to get the results of ACD. Difference in measurements between methods was assessed using the variance analysisi. Consistency was assessed using Bland-Altman.RESULTS:The ACD measured by lOL Master was 2. 31~3. 90mm, the mean was 3. 03 ± 0. 38mm. The ACD measured by contact A- scan ultrasound was 1. 51 ~4. 06mm, the mean was 2. 88 ± 0. 56mm. The ACD measured by immersion A-scan ultrasound was 1. 99 ~4. 17mm, the mean was 3. 17±0. 38mm. The results of lOL Master and contact A - scan ultrasound had statistical differences (P=0. 022<0. 05). The results of lOL Master and immersion A - scan ultrasound had statistical differences (P=0. 031<0. 05). The results of contact A-scan ultrasound and immersion A-scan ultrasound had statistical differences (P=0. 000<0. 05). The consistency between three methods was poor. CONCLUSlON: The rank of ACD of patients with cataract is immersion A-scan ultrasound, lOL Master and contact A-scan ultrasound. The consistency is poor, and the three methods can’t be interchanged clinically.

Objective To investigate the significance of helper T cell 1(Th1)/Th2 cytokines unbalance in children with hepatitis B virus-associated glomerulonephritis(HBV-GN).Methods The serum levels of interferon-gamma(IFN-?),interleukin-2(IL-2) and IL-4 were determined in 22 children with HBV-GN and 18 children with HBV by enzyme-linked immunosorbent assay(ELISA),respectively,and the difference of Th1/Th2 cytokines in the 2 groups.Results Serum levels of IL-2 and IFN-? in children with HBV-GN were decreased(P