The prevalence and adjusted rate of Mental Retardation(M. R.) were 2.70% and 2.68% in the Qin-Ba Mountain Area in South-Shaanxi; 2.78% and 2.80% in childhood respectivety. These rates were all higher than overall rates in Shaanxi and in It is obvious that the prevalence of M. R. could be reduced by the social-environmental factors such as natural geographic situation, social development level, mean income per capita, mother's schooling, the family relationship with stepmother/stepfather, etc. Reducing prevalence rate of M. R., we need to take the multiple measures and services. It may help the reduction of M. R. prevalence and it is very important to continuously supply iodine salt in these area.

Adult ; Brugada Syndrome ; complications ; physiopathology ; Bundle-Branch Block ; Electrocardiography ; Humans ; Male

Ohjective To study the indications,clinical effect and complications of hysterectomy so as to im- prove therapeutic effect.Methods The clinical data involving 320 cases of hysterectomy in this hospital from 2000 to 2006 were reviewed,and the pathogenesis,operation mode,curative effect and post-operation complications were analysed.Results Patients who received hysterectomy due to benign gynecologic diseases were cured well cliniclly; those who received hysterectomy due to malignant gynecologic diseases or diseases with the tendency of malignant change were cured well in early stage but the effect was not so satisfactory in later stage.The operation mode was de- cided by considering the pathogenesis and individual difference.Conclusion For benign gynecologic diseases,hys- terectomy can be conducted with good effect after conservative treatment becomes ineffective.For malignant gyneco logic diseases,early treatment will bring good resuh,while late treatment will generate not so satisfactory effect.Indi- cations for operation should be controlled strictly for hysterectomy to guard against complications.

Objective To explore the clinical significance of gastric hyperplastic polyp pits under magnifying endoscopy. Methods Summary confirmed by magnifying endoscopy and pathological examination gastric hyperplastic po]yp's performance of magnifying endoscopy,Hp positive and the results of pathology during February 2004 to De-cember 2006. Results 55 patients found 116 gastric polyp,41.4% (48/116) with type A,26.7% (31/116) with type B,19. 8% (23/116) with type C,8. 6% (10/116) with type D,2. 6% (3/116) with type E,one case gastric pits blurred(type F) 0. 9% (1/116). 4 cases with type E and type F found moderate-severe atypical hyperplasia. Conclu-sion Gastric hyperplastic polyp pits with type E and type F ,their results of pathology to display atypical hyperplasia.

Acupuncture Therapy ; Edema ; etiology ; immunology ; therapy ; Female ; Humans ; Lower Extremity ; pathology ; Middle Aged ; Ovarian Neoplasms ; surgery ; Postoperative Complications ; etiology ; therapy

Objective To study the current status of morning blood pressure peak in elderly masked hypertension patients and study the correlation between morning blood pressure peak and cognitive function.Methods A total of 72 elderly masked hypertension patients were selected in this study,.Morning blood pressure peak was measured by ABPM examination.The patients were divided into three groups according to the morning blood pressure peak.Morning blood pressure peak ≤ 30 mmHg were divided into non-Morning blood pressure surge group ( NMS group),morning blood pressure peak ＞30 mmHg were divided into Morning blood pressure surge group ( MS group).The cognitive function scale was determined (MMSE and MoCA).T-test and linear regression analysis were performed.Results MMSE score(27.69±2.04) and MoCA scores(24.85 ± 1.52) in MS group were lower than NMS group (28.87 ± 1.34,26.54± 1.53) ( P ＜0.01 ).MMSE and MoCA scores were negatively correlated with the morning blood pressure peak ( r =- 0.308,- 0.447,P ＜ 0.01 ).Conclusions Elderly masked hypertension patients remained the phenomenon of the morning blood pressure peak,the morning blood pressure peak could lead to cognitive impairment.

AIM: To investigate whether potassium cyanate can inactivate glyceraldehydes 3-phosphate dehydrogenase (GAPDH) and thioltransferase (TTase) in bovine lens.METHODS: Fresh intact bovine lenses were incubated with 100mmol/L potassium cyanate (KCNO) for 7 and 12 days respectively. Then all lens were incubated in 50mmol/L DMEM solution. The proteins in the watersoluble fractions from the normal control and the cyanate-modified lens were extracted. The activity of GAPDH and TTase in the water-soluble fraction after incubation at 37℃ was measured by spectrophotometer.RESULTS: GAPDH activity was significantly lower in the cyanate-modified lens proteins than that of the normal control (P<0.01), and considerably diminished in protein incubated with 100mmol/L potassium cyanate for 12 days. There were statistically significant differences in the activity of TTase between the normal control lenses and the carbamylated lenses incubated for 7 days (P<0.05) and 12 days (P<0.01). However. there was no statistical difference between the samples incubated with 100mmol/L KCNO for 7 and 12 days (P=0.19296).CONCLUSION: This study provides evidence to show carbamylation is able to inactivate GAPDH and TTase in bovine lenses. This may have implications for the susceptibility of lenticular GAPDH and TTase to carbamylation, and also for the research on pathogenesis of cataract.

AIM: To investigate whether carnosine can inhibit cataract formation and protect Na+-K+ATPase against inactivation induced by a glucocorticoid.METHODS: Two hundred and twenty clear lenses cultured in vitro were randomly divided into five groups: control group (DMEM), steroid group (DMEM+Dexamethason 10μmol/L),lower concentration carnosine-treated group (DMEM+Dexamethason 10μ mol/L+Carnosine 2mmol/L), higher concentration carnosine-treated group (DMEM+Dexamethason 10μmol /L+Carnosine 5mmol/L) and carnosine group (DMEM + Carnosine 5mmol/L). Progression of cataract formation was evaluated daily using a dissecting microscope. On 1, 3, 5 and 7d, 10lenses of every group were homogenized and the activity of Na+-K+ATPase was measured by using spectrophotometer.RESULTS: During the incubation, mistlike opacity was observed in the lenses of the control group and carnosine group,but in the steroid group appeared dense nuclear opacity, while both two carnosine-treated groups came out visible demarcation between nuclear and cortical regions on 7d. A decrease in the activity of Na+-K+ATPase was found in the lens of the steroid group. On 3, 5, 7d, Na+-K+ATPase activity decreased 22.34% (P=0.002),47.98% (P＜0.001),75.37% (P＜0.001) compared with that at 1d, respectively. In the carnosine group,the activity of Na+-K+ATPase remained at the level of the control throughout the 7-d incubation, indicating that carnosine itself did not interfere with the original lens enzyme activity. In the lower concentration carnosine-treated group, on 3, 5, 7d,the activity of Na+-K+ATPase increased 10.8% (P＜0.05),44.6% (P＜0.01), 57.4% (P＜0.01) of control activity, respectively. In the higher concentration carnosine-treated group, on 3, 5, 7d, the activity of Na+-K+ATPase increased 11.3% (P＜0.05), 45.7% (P＜0.01), 57.6% (P＜0.01) of control activity,respectively. The activity of Na+-K+ATPase in both two carnosine-treated groups were only 6.7% and 6.5% lower than that of the control group after 7-d incubation. After the 7-d incubation, the Na+-K+ATPase activity of the lenses in the steroid group decreased significantly compared with carnosine-treated groups (P＜0.01).CONCLUSION: Carnosine prevents the cataract formation induced by a glucocorticoid, and significantly inhibits the inactivation of Na+-K+ATPase induced by a glucocorticoid.

Abstract?AlM: To study the number of myogenin - positive activated satellite cells in the inferior oblique muscles and the medial muscles of V- pattern exotropia with inferior oblique overaction, to further explore the possible etiological factors of V-pattern exotropia with inferior oblique overaction.? METHODS: The inferior oblique muscles and the medial muscles were cut from V - pattern exotropia patients with inferior oblique overaction during strabismus operation treated as the strabismus group. Cross sections were stained immunohistochemically for the presence of activated satellite cells, as identified by myogenin immunoreactivity. The inferior oblique muscles and the medial muscles were obtained from the corneal transplant donors ( six eyes of six cases) , which treated as the control group.? RESULTS: The frequency of myogenin - positive satellite cells of the inferior oblique muscles was (22. 7± 7.03)% and (4. 2±0. 75)% in the strabismus group and the control group. Significant differences existed in the expression of myogenin in two groups (P<0. 05). Again, the frequency of myogenin-positive satellite cells of the medial muscles was (2. 2±0. 75)% and (4. 5±1. 05)% in the strabismus group and the control group. Significant differences also existed in the expression of myogenin in two groups (P<0. 05).?CONCLUSlON: lt is first report that myogenin-positive satellite cells presents in extraocular muscles of V -pattern exotropia with inferior oblique overaction. The current results suggest that myogenin is one of possible etiological factors of V-pattern exotropia with inferior oblique overaction.

AIM:To observe the effects of advanced glycation end-products (AGEs) on thioltransferase (TTase) expression and activity in human lens epithelial cells.
METHODS: Human lens epithelial cells B3 ( HLE B3 ) were treated with 1. 5mg/mL AGEs - BSA as the experimental groups cultured by fetal bovine serum of volume fraction 10% dulbecco modified eagle medium ( DMEM) and bovine serum albumin ( BSA) was added at the same concentrations as the negative control. The level of reactive oxygen species ( ROS ) was evaluated. Cells were collected at 0, 1, 2, 3, 4d and total RNA or protein was extracted. TTase mRNA levels were detected by qRT-RCR. TTase expression was detected by Western blot and its activity was measured.
RESULTS: Compared with the control group, AGEs-BSA up-regulated the expression of ROS (P<0. 01), ROS content increased in a time-dependent manner. BSA had no effects on ROS expression. The expression of TTase increased after treatment with AGEs-BSA for 1d, peaked at 2d (nearly 5. 06-fold increase, P<0. 01), then decreased gradually. No change was observed between BSA and control group (P>0. 05). Similarly, TTase activity peaked at 3d (nearly 2. 01-fold increase, P<0. 01). Western blot test found that TTase protein expression was increased
gradually, starting from the 3d TTase expression was reflected that there was statistically significant difference compared with control group (P<0. 05).
CONCLUSION:AGEs-BSA significantly increases the production of ROS in human lens epithelial cells, and it then induces the oxidative stress which may promote the expression of TTase and enhances the activity of TTase.