1.Relationship between peripheral neuropathy and retinal nerve fiber layer thickness in elderly patients with type 2 diabetes
Hui LI ; Tong CHENG ; Xiaobing YU ; Nuan PENG ; Lixin GUO
Chinese Journal of Geriatrics 2016;35(4):413-416
Objective To investigate the relationship between retinal nerve fiber layer thickness and peripheral neuropathy in elderly patients with type 2 diabetes.Methods Clinical data of elderly patients with T2DM in Endocrinology Department in Beijing Hospital were retrospectively collected.Global and sectorial retinal nerve fiber layer(RNFL)thicknesses were measured by using optical coherence tomography(OCT),and never conduction velocity measurements were performed in all patients.Diabetic peripheral neuropathy was diagnosed by the criteria in diabetic neuropathies update(2010,American Diabetes Association).RNFL thickness was compared between diabetic nonperipheral neuropathy group (control group,n =30)and diabetic peripheral neuropathy group (DPN group,n=17)and between different sub-groups.Results The RNFL thicknesses of temporal,nasal,superior and inferior visual fields and the mean RNFL thickness were less in DPN group than in control group,among which there were significant differences in the RNFL thicknesses of superior,inferior visual fields and the mean RNFL thickness [(107.7±27.4)μm vs.(128.1±17.3)μm,(112.9 ±20.8)μm vs.(130.8±21.8)μm,(88.2±15.5)μm vs.(100.5± 11.3)μm,F=7.446,7.468,7.988,respectively,P=0.009,0.009 and 0.007].RNFL thickness was decreased along with the aggravation of DPN from the control group,the subclinical DPN group to the DPN group successively(all P< 0.05).Conclusions Retinal nerve fiber layer thickness is associated with diabetic peripheral neuropathy in elderly patients with type 2 diabetes,and the relationship is more significant in patients with serious DPN.
2.Research on the path of developing doctor-patient communication capabilities in neurology young doctors
Tianzhu WANG ; Yuping ZHANG ; Xiuming GUO ; Cheng HUANG ; Gang YU
Chinese Journal of Medical Education Research 2016;15(3):295-298
At present,the doctor-patient relationship in China is a little tense,communication between doctors and patients is not smooth,and the doctor-patient communication skills of the young doctor is obviously insufficient and need to be improved.In this paper,we analyze the factors that affect the communication between doctors and patients in the Department of Neurology through the complexity of professional knowledge,the current background and so on.In addition,we discuss multiple methods of improving communication capability among this group doctors,hoping to strengthen young physicians' clinical basic skills training,and impart doctor-patient communication skills from the linguistic modifiers,oral expression,words and deeds,use of metaphor,simulation training and other aspects,and establish dynamic assessment system of doctor-patient communication ability.
3.Effects of icariin on microRNAs expression in bone microvascular endothelial cells in steroids-induced femoral head lesions
Dingyan ZHAO ; Wanshou GUO ; Qingsheng YU ; Liming CHENG ; Bailiang WANG
Chinese Journal of Tissue Engineering Research 2016;20(15):2140-2147
BACKGROUND:MicroRNAs (miRNAs) are widely involved in regulation of physiological processes, such as human development, cel proliferation, differentiation, and apoptosis, angiogenesis and lipid metabolism. MiRNAs also play an important regulating role in the pathological process of femoral head necrosis. At present, the research about the effect of icarin on miRNA expression in glucocorticoid- induced avascular necrosis is stil in the exploratory stage, and the specific targets, possible regulation mechanism and signaling pathway remain unclear.
OBJECTIVE:To explore the effect of icarin on miRNA expression of bone microvascular endothelial cels in steroids-induced human femoral head lesionsin vitro.
METHODS: Bone microvascular endothelial cels in cancelous bone of the femoral head were isolated and harvested in vitro. Icarin preconditioning preceded establishment of models of glucocorticoid-induced bone microvascular endothelial cel injury. Differential expression profiles and transcriptomes in glucocorticoid and normal groups were tested by miRNA microarrays. The most differentialy expressed miR-23b and miR-339 in microarray analysis were further confirmed by real-time quantitative PCR, Meanwhile the effects of icarin on the expression of miR-23b-5p and miR-339-5p were detected.
RESULTS AND CONCLUSION:According to the microarray analysis, one miRNA was up-regulated and four mi RNAs were down-regulated in the glucocorticoid group (fold > 2,P < 0.05). Results of RT-qPCR revealed that miR-23b was down-regulated and miR-339 up-regulated in the glucocorticoid group, which were in agreement with the microarray analysis (P < 0.05). Icarin pretreatment effectively prevented the imbalances of miR-23b expression induced by glucocorticoid (P < 0.01). These findings indicate that Icarin may participate in the pathological process of steroid-induced femoral head necrosis through regulating the expression of miR-23b.
4.Establishment of a modified model of adriamycin nephrosis in rats
Weina YANG ; Linhua YU ; Shangwen GUO ; Shaoli CHENG ; Yun CHAI
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To study the adriamycin nephrosis model in different development pathological stages. Methods The rat adriamycin nephrosis model was established by injecting adriamycin into tail-vein twice every two weeks to detect blood and urina biochemical indicators and to observe the pathological changes of the renal tissues. Results The model showed serious edema,proteinuria,hypoproteinemia,and hyperlipidemia. Podocytes were swollen and mesangial cells developed mild hyperplasia at the end of the fourth week. The nephric tubule atrophied at the end of the eighth week accompanied with adhesion between glomeruli and Bowman's capsule. Glomeruli sclerosis of mild or medium degree was observed at the end of the twelfth week with obvious lymphocyte infiltration in the renal interstitium as well as the formation of collagen fibers. Conclusion The adriamycin nephrosis model was successfully developed by injecting adriamycin 4 mg/kg into tail-vein twice every two weeks. The acute model is similar to human minimal change disease,and the chronic model is similar to human focal segmental glomerulosclerosis.
5.Significance of transcatheter arterial chemoembolization combined with sorafenib for the treatment of primary hepatocellular carcinoma
Lin ZHENG ; Chenyang GUO ; Hailiang LI ; Hongtao CHENG ; Pu YU
Chinese Journal of Digestive Surgery 2013;(3):236-237
Transcatheter arterial chemoembolization (TACE) was the preferred method of non-operation treatment for hepatocellular carcinoma (HCC).Radical resection of HCC remains difficult,extrahepatic metastasis was not easy to deal with,and repeated treatment aggravated the liver injury,so the long-term efficacy was poor.Sorafenib could control tumor angiogenesis and block the proliferation of tumor cells.A male patient with primary HCC and in the stage Ⅱb according to the Chinese clinical liver cancer staging system was treated by TACE combined with sorafenib and antiviral treatment in Henan Cancer Hospital.After the treatment,the intrahepatic lesions were inactive,and the pulmonary metastasis was partially relieved.The patient was followed up till May 2012,and the survival time was 39 months.The hepatic function was normal,and the hepatitis B virus (HBV) replication was negative.No intervention treatmentrelated complications were detected,and the KPS score was 100.
6.Expression of phosphorylated protein kinase B and PTEN protein in ovarian epithelial cancer
Yu-Huan QIAO ; Jia CHENG ; Rui-Xia GUO ;
Chinese Journal of Obstetrics and Gynecology 2001;0(05):-
Objective To analyze the expression of phosphorylated protein kinase B(pAKT)and PTEN protein in ovarian epithelial cancer and to investigate the correlations between their expression and prognosis of ovarian epithelial cancers.Methods Expression of pAKT and PTEN in 12 normal ovarian tissues,20 benign tumors,12 borderline tumors and 80 cases of ovarian epithelial cancers were detected by immunohistochemical method,and their correlations were analyzed.Results The positive expression of pAKT in normal ovarian and benign tumor tissues were significantly lower than that in ovarian epithelial cancers(8%,10% vs 55%;P
7.The Biologic Characteristics of a Strain of Cellulosimicrobium cellulans and Its Utilization of Several Kinds of Benzoic Compounds
Yan-Hong CHEN ; Ping CHENG ; Peng YANG ; Guo-Hui YU ;
Microbiology 2008;0(07):-
A strain of Cellulosimicrobium cellulans Ha8 was studied on its morphological, biological characteristics and its utilization of several kinds of benzoic compounds, the results showed this strain was Gram-positive, the long rod-shaped cells were changed into short rod-shape gradually. pH value from pH 6.0 to pH 9.0 and the temperature from 20 ℃ to 40 ℃ were good for its growth. It could not only hydrolyze protein and starch, use cellulose and pectin, decomposite chitin, liquify gelatin and fix nitrogen, but also use phenol, xylene, benzoic, cinnamic acids and diphenlamine as the sole carbon resource for its growth. It could tolerate 0 mmol/L~30 mmol/L, 0 mmol/L~8 mmol/L, 0 mmol/L~30 mmol/L, 0 mmol/L~15 mmol/L and 0 mmol/L ~ 40 mmol/L of benzoic acids, phenol, xylene, cinnamic acids and diphenlamine seperately, but could not use 2,4-dinitrophenol, o-Nitrophenol, 2-Methoxyphenol, aminobenzenesulfonic acid, catechol and o-Phenanthroline as its sole carbon resource.
8.Effects of Ang-Ⅱ on c-fos mRNA and pro-α1ⅠmRNA of cadiac FBC in rat embryo
Yi, JIN ; Bao-yu, LI ; Cheng-hao, GUO
Chinese Journal of Endemiology 2001;20(3):169-171
Objective To observe the effects of Ang-Ⅱ on expressions of c-fos mRNA and pro-α1[Ⅰ]mRNA in fibroblasts (FBC) of rat embryo in the course of collagen synthesis.Methods The change of free Ca2+([Ca2+]i) was tested in fluorometry and the expressions of c-fos mRNA and pro-α1[Ⅰ]mRNA were tested by RT-PCR method in incubated FBC.Results The level of[Ca2+]i in FBC and the expressions of c-fos mRNA and pro-α1[Ⅰ]mRNA were enhanced with the increase of Ang-Ⅱ concentration(10-8~10-5and 10-7~10-6mol/L).Conclusions The expressions of c-fos mRNA and pro-α1[Ⅰ]mRNA were induced by Ang-Ⅱ activating signal system in FBC.