Adolescent ; Adult ; Cytarabine ; administration & dosage ; blood ; pharmacology ; Drug Interactions ; Female ; Humans ; Instillation, Drug ; Leukemia ; blood ; drug therapy ; Male ; Methotrexate ; administration & dosage ; blood ; pharmacology ; Middle Aged ; Young Adult

Objective To establish the reference databases for bone mineral density(BMD)in multiple skeletal regions,which would be useful for diagnosis of osteoporosis(OP)and prediction of fracture risk in adult women in Qingdao.Methods BMD was measured by dual-energy X-ray absorptiometry at skeletal regions of lumbar spine,left hip(femoral neck,Ward's triangle and greater trochanter)in 868 healthy adult women aged 25- 83 years and 191 women with fractures.BMD of skeletal regions with age-related change was found to fit in 8 kinds of regression models.Best model equations of fitting were found and the reference database was established.BMD of women with fractures was compared with the reference databases to predict the risk of fracture.Results BMD in 6 skeletal regions changed with aging and a cubic regression model was better fitted with aged-related change as compared with other regression models.The coefficients of determination(R~2)of fitting curve were 0.21?0.09 (P＜0.01).The BMD reference databases of women in Qingdao were established by cubic regression equation, the peak BMD of lumbar spine and hip appeared at 25-29,and 40-44 years old groups respectively.Finally,the BMD in fracture group was significantly decreased by 1.6-2.5 s as compared with the peak BMD of health women. Conclusion The bone quantity is lost rapidly after 45 years old in women.If the BMD in women after 50 years old is decreased by 1.6-2.5 s compared with the peak BMD in the same area,the risk of fracture is increased.

Objective To study the effect of Corylin on A375 cells melanin synthesis,and explore its mechanism.Methods The cells were randomly divided into the control group, the estradiol group, and corylin group including 10-3μmol/L, 10-2μmol/L, 10-1μmol/L, 1μmol/L, 10μmol/L, 100μmol/L. Estradiol estradiol intervention group were given 10-3 mol/L. Corylin group (10-3μmol/L, 10-2μmol/L, 10-1μmol/L, 1μmol/L, 10μmol/L,100μmol/L) were given 10-3μmol/L, 10-2μmol/L, 10-1μmol/L, 1μmol/L, 10μmol/L, 100μmol/L corylin intervention. The activity of proliferation were detected by MTT, NaOH method, dopa oxidation , both melanin content and tyrosinase activity (tyrosinase, TYR). TYR, yrosinase related protein (tyrosinase related protein, TRP)-1 and TRP-2 expression levels of mRNA were determined by RT-PCR.Results Compared with the control group, 10, 100μmol/L of Corylin group cell proliferation rate significantly decreased (P<0.01). The 1μmol/L, 10-1μmol/L, 10-2μmol/L of Corylin group cell melanin content, TYR significantly decreased (P<0.01 or P<0.05). The 1μmol/L corylin group TYR (0.303 ± 0.003vs. 0.628 ± 0.012), TRP-1 (0.313 ± 0.008 vs. 0.677 ± 0.022), TRP-2 (0.456 ± 0.028vs. 0.687 ± 0.020) mRNA expression level significantly decrease (P<0.01).Conclusions The results showed that Corylin could inhibit melanin synthesis, which worked probably through inhibiting the activity of TYR and cutting the mRNA expressions of TYR,TRP-1/2.

Purpose To improve the early correct diagnosis and avoid misdiagnosis of cervical mucinous adenocarcinoma.Methods Twenty-one cases of cervical mucinous adenocarcinoma were reviewed and analyzed retrospectively.The expression of CEA and Ki-67 was detected in the tumor by immunohistochemical staining (LABC method).Results Of the twenty-one cases, three cases (14.3%) were missed out, in which one was missed out by TCT and the others by biopsy; four cases (19.0%) were diagnosed by biopsy as adenocarcinoma in situ with invasion not be excluded, and then further confirmed as invasive adenocarcinoma by LEEP; one case (4.8%) was diagnosed as cervicitis at first and was further detected as adenocarcinoma by LEEP; twelve cases (57.1%) were directly diagnosed as adenocarcinoma by biopsy; one case (4.8%) was diagnosed as adenocarcinoma with unknown origin, and then as cervical adenocarcinoma after hysterectomy. Immunohistochemically, ten cases were CEA positive (47.6%) and the expression of Ki-67 was increased (>20%).Conclusions Understanding of the cytologic and histologic features of adenocarcinoma in cervix might improve its early detection and correct diagnosis, so that timely treatment is guaranteed for patients.

Objective To clarify the clinicopathological features of ovarian clear cell carcinoma derived from endometriotic cyst (EC-OCCC).Methods Totally 54 cases of EC-OCCC were recruited in the current retrospective study.The relation between ages, clinical symptoms and signs, surgical and pathological stages, serum CA125, findings of ultrasound, treatments and the sites of tumors, macro-and micro-features and expression of immunostainings were analyzed.Results (1) Clinical features: the ages of patients were (50±6) years old (range 31-62 years old).Pelvic mass was the major complaint of 50 patients (93％, 50/54).Forty-five cases belonged to International federation of Gynecology and Obstetrics (FIGO) stage Ⅰ, 4 cases were stage Ⅱ and another 5 cases were stage Ⅲ.Serum CA125 was elevated in 21 cases (54％, 21/39) before therapy.Doppler ultrasound showed 46 cases (85％, 46/54) had solid masses in pelvis.(2) Pathological findings: 52 cases (96％, 52/54) had their tumor unilaterally, and 2 cases (4％, 2/54) occurred bilaterally.The maximal diameters of endometriotic cyst (EC) ranged from 1.5 to 23.0 cm and maximal diameters of ovarian clear cell carcinoma (OCCC) components were from 0.5 to 12.0 cm.Fifty-one cases (94％, 51/54) had their tumor within EC, which showed focally irregular protrudings, grey-white papillae or solid nodules attached to the cyst wall.Three cases (6％, 3/54) appeared as irregular thickened wall of the cysts, ranged from 1.5 to 6.0 cm in the maximal length, with the microscopic features of EC and OCCC and the transitional areas between the 2 morphologies.All cases expressed cytokeratin (CK) 7 and pan-CK AE1/AE3, 17 cases (33％, 17/51) expressed ER and 5 cases (10％, 5/51) expressed PR.TP53 showed mutational phenotype in 19 cases (36％, 19/53).Sixteen cases (30％, 16/54) combined with uterine adenomyosis and 25 cases (46％, 25/54) with endometriosis at other sites.(3) Survival survey: during the period of 39.1 months follow-up, 3 cases relapsed and 2 cases died.(4) There was a significant difference of serum CA125 between patients of early-and advanced-stages (P=0.049).There were no differences identified in ages, diameters of EC and OCCC, the expression level of ER, PR and TP53, the co-existence of adenomyosis and endometrosis, as well as ultrasonic findings (P＞0.05).Conclusion EC-OCCC could be recognized in early stage by symptoms and ultrasound due to accompanied endometriotic cysts, resulting in relatively good prognosis.

Objective Previous studies indicated that activation of Toll-like receptor4 (TLR4) was involved in the progression and instability of atherosclerotic plaque.Anti-inflammatory effects were shown in statins. However,the mechanisms underlying these effects have not been well explored.We test the hypothesis that a por- tion of these anti-inflammatory effects are mediated by regulation of TLR4 expression.Methods One hundred twenty-one subjects (22 normal persons,17 patients with stable angina and 82 patients with ACS) were recruited. 41 patients with ACS were randomized to atorvastatin 10 mg/d or atorvastatin 40 mg/d on top of routine anti-anginal treatment.Serum level of hsCRP,blood lipids,TLR4 expression on CD_(14)~+ monocytes were measuered before and after one month treatment.TLR4 expression on CD_(14)~+ monocytes were quantified via flow-cytometry.Results hsCRP and TLR4 expression on CD_(14)~+ monocytes in patients with ACS were higher than patients with stable angina and normal persons(hsCRP,ACS:11.1?14.3 vs stable angina:2.5?2.7 mg/L vs normal:2.3?4.2 mg/L,P

Objective:To determine whether heme oxygenase-2(HO-2) gene deletion can attenuate oxidative injury induced by free Fe2+. Methods:Stereotactic injection of 10 μl sterile FeCl2 (10 mmol/L) was made into the right striata of HO-2 knockout mice and wild-type mice. Brain edema severity was measured at 24 h. Cell viability, protein oxidation, and lipid oxidation of the basal ganglia were determined at 72 h. Western blot analysis was applied for heme oxygenase-1 (HO-1) measurement.Results: Brain water content significantly decreased in HO-2 knockout mice at 24 h compared with wild-type mice. Protein oxidation and lipid oxidation significantly decreased in HO-2 knockout mice at 72 h compared with wild-type mice, while the striatal cell viability increased significantly. HO-1 expression at baseline and 72 h was also similar to that in wild-type mice. Conclusion:These results show that HO-2 gene deletion can protect basal ganalia cells from free Fe2+ -mediated oxidative stress injury,suggesting that selective inhibition of HO-2 may have a protective effect on brain oxidative injury.

OBJECTIVETo investigate the therapeutic effects of acupuncture combined with nerve block for treatment of lumbar disc herniation.

METHODSNinety cases of lumbar disc herniation were randomly divided into three groups: acupuncture combined with nerve block group, acupuncture group and nerve block group, 30 cases in each group. The acupuncture combined with nerve block group was treated with acupuncture combined with nerve block therapy, L2-L5 Jiaji (EX-B 2), Zhibian (BL 54), Huantiao (GB 30), Yanglingquan (GB 34) etc. were selected for acupuncture, affected nerve root, sciatic nerve or common peroneal nerve were selected for nerve block with anti-inflammation-analgesic injection; the acupuncture group was treated with acupuncture only; the nerve block group was treated with nerve block only. After 4 weeks of treatment, the visual analogue scale (VAS), Oswestry lumbar dysfunction index (ODI) and modified MacNab standard were compared to evaluate the therapeutic effects of three groups.

RESULTSThe VAS and ODI in all groups were significantly decreased after one week, two weeks and four weeks of treatment (all P<0.01); after one week of treatment, the scores of VAS and ODI in nerve block group and acupuncture combined with nerve block group were significantly lower than those of acupuncture group (P<0.05); after two weeks and four weeks of treatment, the scores of VAS and ODI in acupuncture combined with nerve block group were significantly lower than those of acupuncture group and nerve block group (P<0.05). The effective rate and excellent and good rate of the acupuncture combined with nerve block group were significantly higher than those of acupuncture group and nerve block group (both P<0.01).

CONCLUSIONThe nerve block therapy and acupuncture are effective methods for treatment of lumbar disc herniation, while it has a better effect when these two treatments are combined used.

Acupuncture Therapy ; Adult ; Analgesics ; administration & dosage ; Anti-Inflammatory Agents ; administration & dosage ; Female ; Humans ; Injections ; Intervertebral Disc Displacement ; drug therapy ; therapy ; Male ; Middle Aged ; Nerve Block ; Treatment Outcome

BACKGROUNDDetermining the nerve of origin for vestibular schwannoma (VS), as a method for predicting hearing prognosis, has not been systematically considered. The vestibular test can be used to investigate the function of the superior vestibular nerve (SVN) and the inferior vestibular nerve (IVN). This study aimed to preoperatively distinguish the nerve of origin for VS patients using the vestibular test, and determine if this correlated with hearing preservation.

METHODSA total of 106 patients with unilateral VS were enrolled in this study prospectively. Each patient received a caloric test, vestibular-evoked myogenic potential (VEMP) test, and cochlear nerve function test (hearing) before the operation and 1 week, 3, and 6 months, postoperatively. All patients underwent surgical removal of the VS using the suboccipital approach. During the operation, the nerve of tumor origin (SVN or IVN) was identified by the surgeon. Tumor size was measured by preoperative magnetic resonance imaging.

RESULTSThe nerve of tumor origin could not be unequivocally identified in 38 patients (38/106, 35.80%). These patients were not subsequently evaluated. In 26 patients (nine females, seventeen males), tumors arose from the SVN and in 42 patients (18 females, 24 males), tumors arose from the IVN. Comparing with the nerve of origins (SVN and IVN) of tumors, the results of the caloric tests and VEMP tests were significantly different in tumors originating from the SVN and the IVN in our study. Hearing was preserved in 16 of 26 patients (61.54%) with SVN-originating tumors, whereas hearing was preserved in only seven of 42 patients (16.67%) with IVN-originating tumors.

CONCLUSIONSOur data suggest that caloric and VEMP tests might help to identify whether VS tumors originate from the SVN or IVN. These tests could also be used to evaluate the residual function of the nerves after surgery. Using this information, we might better predict the preservation of hearing for patients.

Adult ; Female ; Hearing ; Humans ; Male ; Neuroma, Acoustic ; pathology ; physiopathology ; Vestibular Nerve ; physiology