2.25 hydroxyvitamin D status and its correlation with glucose metabolism and bone mineral density in elderly men with type 2 diabetes mellitus
Chinese Journal of Postgraduates of Medicine 2013;(19):13-16
Objective To explore the change of 25 hydroxyvitamin D level and its correlation with glucose metabolism and bone mineral density in elderly men with type 2 diabetes mellitus(T2DM).Methods Hospitalized 53 elderly male patients with T2DM (T2DM group) and 51 patients without T2DM (NDM group) were chosen.Blood.biochemical indexes and 25 hydroxyvitamin D level were measured.Bone mineral density of lumbar (L2_4),left proximal femur was measured by dual energy X-ray.Results The serum 25 hydroxyvitamin D level in T2DM group was lower than that in NDM group [(12.38 ±5.12)μg/L vs.(17.35 ± 5.52) μ g/L],and there was significant difference(P< 0.05).The serum 25 hydroxyvitamin D level was negatively associated with fasting blood glucose level and glycosylated hemoglobin (r =-0.225,-0.499,P < 0.05).The serum 25 hydroxyvitamin D level was not associated with fasting insulin and homeostasis model insulin resistance index (r =-0.050,-0.082,P > 0.05).The incidence of osteoporosis in T2DM group was higher than that in NDM group [30.19%(16/53) vs.11.76%(6/51)],and there was significant difference (P <0.05).The serum 25 hydroxyvitamin D level was positively associated with bone mineral density of femur neck,greater trochanter of femur and Ward triangle(r =0.773,0.762,0.812,P < 0.05).The serum 25 hydroxyvitamin D level was not associated with bone mineral density of lumbar (L2_4)(r =0.116,P > 0.05).Conclusions The prevalence of vitamin D deficiency is found in elderly men with T2DM.Vitamin D level can affect blood glucose control and increase the risk of the occurrence of osteoporosis.Therefore,T2DM patients,especially elderly patients,should be routine vitamin D testing.Vitamin D supplementation to the patients of vitamin D insufficiency in time may be beneficial to glucose metabohsm and the prevention and treatment of osteoporosis.
3.The importance of confirmative diagnosis of presymptomatic patients with Wilson's disease.
Chinese Journal of Pediatrics 2013;51(6):406-407
Adenosine Triphosphatases
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genetics
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Alanine Transaminase
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blood
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Cation Transport Proteins
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genetics
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Ceruloplasmin
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metabolism
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Child
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Copper
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blood
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urine
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Copper-transporting ATPases
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Cornea
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pathology
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Diagnosis, Differential
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Genetic Testing
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Hepatolenticular Degeneration
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blood
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diagnosis
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genetics
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metabolism
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Humans
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Liver
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metabolism
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pathology
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Liver Function Tests
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Mutation
4.Combined anesthesia with isoflurane and different doses of remifentanil: A study of pharmacodynamics
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To study pharmacodynamic changes of combined anesthesia with remifentanil at different target plasma concentrations and isoflurane at different minimal alveolar concentrations(MAC) in laparoscopic operations. Methods Forty-five patients with ASA status Ⅰ~Ⅱ,receiving selective laparoscopic cholecystectomy or laparoscopic oophorocystectomy,were included.The patients were randomly divided into three groups with 15 patients in each group.In the Group A,anesthesia was maintained with isoflurane inhalation at the MAC of 1.3;in the Group B,anesthesia was maintained with both isoflurane inhalation at the MAC of 0.6 and remifentanil target-controlled infusion at 4 ng/L;and in the Group C,anesthesia was maintained with both isoflurane inhalation at the MAC of 0.4 and remifentanil target-controlled infusion at 6 ng/L.Pharmacodynamic parameters and recovery characteristics,including bispectral index(BIS),heart rate variability(HRV),mean arterial pressure(MAP),heart rate(HR),time to additional administration of muscle relaxants,time to the recovery of spontaneous breathing,time to eye opening,time to endotracheal extubation,time to the recovery of orientation,and follow-up survey of "awareness during operation",were compared among the 3 groups.Results ①The BIS value was lower in the Group A than in the Group B and C at the time of pneumoperitoneum for 2 min and removal of the gallbladder or the ovarian cyst.The measures of HRV were higher in the Group A than in the Group B and C at the time of pneumoperitoneum for 2 min and removal of the gallbladder or the ovarian cyst.The measures of MAP and HR in the Group A were higher than those in the Group C at the time of pneumoperitoneum for 2 min,and were lower than those in the Group C at the time of the endotracheal extubation and the recovery of consciousness.②Either isoflurane inhalation at the MAC of 0.6 combined with remifentanil target-controlled infusion at 4 ng/L or isoflurane inhalation at the MAC of 0.4 combined with remifentanil target-controlled infusion at 6 ng/L provided satisfactory anesthetic maintenance.③Significantly shorter time to endotracheal extubation,to eye opening,and to the recovery of orientation were recorded in the Group B and C than in the Group A.Conclusions Anesthesia with target-controlled infusion of remifentanil combined with inhalation of isoflurane can be used for laparoscopic surgery.Pharmarcodynamic parameters and recovery characteristics show that combined use of remifentanil infusion at 4 ng/L and isoflurane inhalation at the MAC of 0.6 provides optimal anesthetic maintenance.
5.Regulation of vascular endothelial growth factor and pigment epithelium-derived factor in rat retinal explant under the retinal acidification
Dong-qing, ZHU ; Zhi, ZHENG ; Qing, GU ; Xun, XU
Chinese Journal of Experimental Ophthalmology 2012;30(4):326-330
BackgroundHypoxia and hyperglycemia are the common causes of retinal neovascularization.In these states,H+ accumulates because of the elevated glycolysis and failure of retinal circulation,thus the retinas readily acidified. ObjectiveThe present study was to explore whether retinal acidosis independently regulates the production of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) and whether the regulation is related to oxidative stress.Methods The retinas from 2-week-old male SD rats were cultured with explant method in DMEM modulated by NaHCO3,and culture retinas were randomly divided into pH 7.2,6.8 and 6.5 groups for 24 hours.In addition,after 24 hours of culture as above described,retinas were washed using PBS two times and then followed by again culture in DMEM with pH 7.2 for another 24 hours.Also,antioxidant was added in different pH values of DMEM for culture as above described.The retinal samples were prepared for histopathological examination.The expressions of VEGF and PEDF proteins and their mRNA in retina tissue were detected by Western blot and fluorescence quantitative polymerase chain reaction (PCR) respectively.Results The retina showed the clear structure and morphology in pH 7.2 group and pH 6.8 group,but retinal vacuoles change was seen in pH 6.5 group after culture for 24 hours.No significant difference was seen in the expressing level of VEGF mRNA in retina between normal group and pH 7.2 group( 112% ±11% vs 100% ±7% ) (P=0.55),but those in pH 6.8 group and pH 6.5 group were significant increased in comparison with pH 7.2 group( 196% ±43% vs 100% ±7% ;251% ±29%vs 100% ±7% )( P<0.05 ).The expressing level of PEDF mRNA in retina in normal group was similar to that of pH7.2 group(86% ±19% vs 100% ±33%) (P=0.64),but that in pH 6.5 group was significantly higher than pH 7.2 group( 230% ±66% vs 100% ±33% ) ( P<0.05 ).The resemble results were found in the expressions of VEGF and PEDF protein.After pH reversion,the expressing levels of VEGF mRNA were 100% ±13%,111% ±9%,113% ±9% in pH 7.2 group,pH 6.8 group and pH 6.5 group respectively without significant difference among them (F=2.51,P=0.16).The expressing levels of PEDF mRNA were 100% ±13%,110% ±9%,108% ±11%in different groups ( F =0.98,P =0.43 ).Under the presence of antioxidant,the expressing level of VEGF mRNA in pH 6.5 group increased in comparison with pH 7.2 group and pH 6.8 group ( P < 0.05 ).The expressing levels of PEDF mRNA were significant different among pH 7.2 group( 100±31 )%,pH 6.8 group( 282±45 )% and pH 6.5 group(480±117)% (F=20.73,P=0.00). Conclusions VEGF can be induced by retinal acidification alone,which may be regulated by oxidative stress.Under the retinal acidification,antioxidants promote the expression of PEDF,suggesting that oxidative stress inhibits the production of PEDF.
6.The expression and significant of CD_(44v6) and C-myc in human squamous cell carcinomas of the uterine cervix
Yonghong ZANG ; Shuming ZHENG ; Qing TIAN
Cancer Research and Clinic 2005;0(S1):-
0.05, respectively). Conclusion CD44v6 and C-myc may play a important role in prognosis of the human squamous cell carcinomas of the uterine cervix.There are positive correlation between them,if detached them together it will be help for in the progression and metastasis and prognosis of cervical cancer.
7.Study on the Protective Devices of Microwaves Radiated From Mobile Telephones
Songlei TAO ; Yifan ZHENG ; Qing SHENG
Journal of Environment and Health 1989;0(06):-
Objective To research the effective protection from microwaves radiated from mobile telephones. Methods The observed mobile telephone was covered with a compound membrane developed by us and made from metal foil, metal silk screen, graphite and binder with a thickness of 0.5 mm. The electromagnetic field intensities were determined at 2.6 cm far from the front of the speaker, screen and keyboard of the observed mobile telephones covered with protective membrane or not. Results The electromagnetic field intensities of those three monitored locations mentioned above were 0.145, 0.095 and 0.085 mW/cm 2 for the mobile telephone without the protective membrane respectively, and were all
10.Emergency percutaneous coronary intervention for non-ST-segment elevation acute coronary syndrom
Zheng WAN ; Qing LIN ; Xiaochun LI
Chinese Journal of Interventional Cardiology 1993;0(03):-
Objective To evaluate the efficacy and safety of emergency percutaneous coronary intervention(PCI) in patients with non-ST-segment elevation acute coronary syndrome(ACS).Methods A total of 233 patients(emergency group) were treated with emergency PCI within 48 h of heart attack and another 152 patients(delayed group) were treated with PCI after 3-14 days of medical therapy.All culprit lesions were treated.Procedural success rate,the time from admission to angina relief,the length of hospital stay and cardiac events incidence in 30 days were observed.Results The procedural success rates for the emergency group and the delayed group were similar(98.1% vs 95.5%),but cardiac events incidence in 30 days was significantly lower in the emergency group than that of the delayed group(2.9% vs 14.1%,P