1.Functions of long noncoding RNAs and their roles in ocular diseases
Fang-Kun, ZHAO ; Yu, QIN ; Jing, LI ; Jin-Song, ZHANG
International Eye Science 2016;16(8):1469-1473
?Advances in genome-wide analysis have revealed that up to 90%of the human genome is transcribed.However, only approximately 1% of RNA transcripts encode proteins, and the remaining transcripts are noncoding RNAs.Noncoding RNAs can be roughly divided into small noncoding RNAs (<200nt ) and long noncoding RNAs ( LncRNAs, >200nt ). Small noncoding RNAs include microRNAs, transfer RNAs and small nucleolar RNAs, whereas the long noncoding RNAs comprise ribosomal RNA, natural antisense transcripts, etc. Although the biosynthesis and biological activities of microRNAs are well studied through bioinformatics and active biological molecules analysis, the understanding of LncRNAs on these aspects is still limited.LncRNAs play multiple roles in regulating gene transcription and translation, and epigenetics.Aberrant LncRNAs expression can occur in various pathological processes and significantly related to the pathogenesis or poor prognosis of ophthalmological diseases. In this review, we will focus on the characteristics and regulatory functions of LncRNAs that are commonly associated with ophthalmological diseases.
2.The role of TLR4 acetylization in its inflammatory pathway in the pathogenesis of gestational diabetes mellitus
Song LI ; Lin CONG ; Jing YUAN ; Huiqin FANG ; Wei CHEN ; Qin LI ; Qin YANG
The Journal of Practical Medicine 2015;31(22):3708-3710
Objective To probe into the pathogenesis of gestational diabetes mellitus (GDM) by studying expression of TLR4 acetylation in peripheral blood mononuclear cells of gravida with GDM as well as its role in TLR4 inflammatory pathway. Methods 30 normal gravidas and 30 gravidas with GDM were enrolled in the study, 15 mL peripheral blood from every participant was collected for extraction of mononuclear cells via density gradient centrifugation and culturing in vitro by LPS. The expression of TLR4 acetylation in the mononuclear cells was detected using immunoprecipitation and western blot and the levels of inflammatory cytokines, TNF-α, IL-1 and IL-10 in the supernatant were detected by ELISA. Results TLR4 acetylation appeared positive in GDM group, and negative in the control group. After the LPS intervention, the degree of TLR4 acetylation was enhanced significantly and the latter was significantly higher than those of the GDM group and the normal + Lps group (P < 0.05). The differences in the levels of inflammatory cytokines, TNF-α, IL-1, IL-10, were statistically significant (P < 0.05). Conclusion TLR4 acetylation exists in mononuclear cells of gravida with GDM, and mediates the release of inflammatory cytokines by influencing the activation of TLR4 inflammatory pathobenesis, which contributes to the promoted antiinflammatory - proinflammatory imbalance in gravidas. In this way, it is involved in the growth of GDM.
3.Effect of Bushen Huoxue Compound on Retinal Müller Cells in High Glucose or AGEs Conditions.
Xue-jun XIE ; Ming-xia SONG ; Mei ZHANG ; Wei QIN ; Li WAN ; Yang FANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(6):735-740
OBJECTIVETo explore the effect of Bushen Huoxue Compound (BHC) on lactate dehydrogenase (LDH) leakage, expressions of vascular endothelial growth factor (VEGF) and VEGF mRNA in retinal Muller cells under high glucose condition or advanced glycosylation end products (AGEs) condition by using serum pharmacological method.
METHODSThe retinal Müller cells of 5-7 days post-natal Sprague Dawley (SD) rats were cultured with modified enzyme-digestion method. Purified retinal Muller cells were cultured in normal conditions, high glucose condition (50 mmol/L) or AGEs (50 mg/L and 100 mg/L) conditions, and BHC-containing serum was added to culture medium. The LDH leakage and VEGF expressions were measured by enzyme-linked immunosorbent assay (ELISA). In addition, the relative expression of VEGF mRNA was tested by reverse transcription polymerase chain reaction (RT-PCR).
RESULTSCompared with the normal control group, expressions of VEGF and VEGF mRNA were significantly increased in the high glucose group, the low dose AGEs group and the high dose AGEs group (all P < 0.01). The LDH leakage was obviously increased in the high dose AGEs group, when compared with the normal control group and the high glucose group (P < 0.01). The LDH leakage, expressions of VEGF and VEGF mRNA were obviously decreased by BHC-containing serum both in high glucose and AGEs conditions (P < 0.05, P < 0.01). BHC-containing serum had no significant effect on the LDH leakage and expressions of VEGF and VEGF mRNA in normal conditions (P > 0.05).
CONCLUSIONSAGEs intervention could obviously lower the stability of Müller cell membrane. Up-regulated expressions of VEGF and VEGF mRNA in cultured Müller cells could be induced by AGEs or high glucose. BHC-containing serum could stabilize the stability of Müller cell membrane, inhibit the transcription of VEGF mRNA and decrease the protein expression of VEGF, which might be one of important mechanisms for preventing and treating diabetic retinopathy.
Animals ; Cells, Cultured ; Diabetic Retinopathy ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Ependymoglial Cells ; Glucose ; L-Lactate Dehydrogenase ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Vascular Endothelial Growth Factor A
4.Effect of surgical arthrolysis treatment combined external support in the posttraumatic elbow stiffness combined with pain
Po YANG ; Kaifang SONG ; Jie QIN ; Xin JIN ; Li GUO ; Xingfeng HU ; Fang YAN
Chongqing Medicine 2017;46(8):1063-1065,1069
Objective To discuss clinical efficacy of patients treated with surgical treatment for posttraumatic elbow stiffness combined with pain.Methods From January 2011 to December 2014,release treatment was performed on 32 cases of posttraumatic contracture of the elbow combined with pain by operation.There were 22 males and 10 females,at average age of 39 years(range from 18 to 65 years).25 cases of these patients with mild-to-moderate pain got a simple elbow release operation.There were 4 cases of severe pain patients complicated with elbow dislocation,after fully release the elbows,reduction was performed under the direct;Both elbow arthrolysis and dermal transplantation interval type elbow arthroplasty were performed in 3 cases of severe pain patients which had severe osteoarthritis.A total of 26 patients were installed hinged external fixator after operation for early functional exercise.Results All patients were followed up for an average time of 14 months(from 12 to 18 months).All patients were significantly improved in the range of elbow and pain symptoms.Postoperative joint function improvement:2 patients with severe stiffness improved to moderate stiffness,19 patients with moderate or severe stiffness improved to mild stiffness,and the remaining of 11 cases without stiffness,The improvement rate was 100%.Postoperative pain:6 cases of moderate or severe pain relieved for mild pain,26 patients pain disappeared,the pain relief rate was 100%.Mayo elbow performance score were evaluated before and after surgery.Preoperative score:the results were good in 6 cases,fair in 14 cases and poorin 12 cases;postoperative score:excellent in 20 cases,good in 8 cases and fair in 4 cases,the good rate is 87.5 %.The difference between preoperation and postoperation was statistically significant (P<0.05).Conclusion Elbow arthrolysis combined external fixation is beneficial to early functional rehabilitation and restoring the flexion and extension function of stiff elbow,at the same time,the pain caused by stale dislocation or arthritis of elbow can also get good effect.
5.Influence of diabetes on off-pump coronary artery bypass grafting
Yuhai ZHANG ; Laichun SONG ; Tianxiang GU ; Chun WANG ; Enyi SHI ; Qin FANG
Clinical Medicine of China 2011;27(6):568-571
Objective To investigate the impact of diabetes on coronary artery bypass grafting (CABG)in peroperative patients. Methods Clinical data of 692 CABG patients were collected retrospectively from Sep. 2006 to Jul. 2010. The CABG patients were divided into diabetic group (n = 276) and nondiabetic group (n = 416) according to with the status of diabetes or not before operation. Blood glucose was dynamicaly monitored and treated with insulin to control blood glucose in perioperativeperiod. The postoperative effect,perioperative complication and inhospital case fatality and their relationship with diabetes were analyzed using univariate analysis. Results No significant differences were found regarding the incision complications (5. 8%vs. 4. 3 % , P > 0. 05). The volume of blood transfusion was (890. 7 ± 520. 6) ml in the diabetes group, which was not significantly different from that of (825. 2 ±518. 4)mlin the non-diabetes group (P>0. 05). No significant difference was found on cardiac arrhythmia (13.0% vs. 13. 5%),renal function insufficient (5. 1% vs. 2.4%)and case fatality (2. 9% and 1. 9%) between the diabetes and non-diabetes group (Ps >0. 05). In the diabetes group and non-diabetes group, the duration of IABP (3.7 ± 1. 6) d vs (3.5 ± 1.6)d, use of ventilator (2. 6 ± 1.9)d vs. (2. 4±1.5)d were not sigfnificantly different (Ps >0.05). The length of hospital stay and cost were (22. 0 ±8. 8)d and (8. 11 ±2. 40) thousand RMB in the diabetes group, which were significantly higher than that of (20. 6 ±7. 6)d and (7. 63 ±2. 20) thousand RMB in the non-diabeties group (t =2. 22 and 2. 71 ,Ps <0.05) . Conclusion There are no significant differences in the operative case fatality and complications between patients with diabetes and without nondiabetes. However,diabetes increases hospital stay and expense.
6.Predisposition of type 2 diabetes mellitus in elderly patients with mitochondrial DNA base variants
Song-Mei LIU ; Xin ZHOU ; Fang ZHENG ; Xia LI ; Han QIN ;
Chinese Journal of Geriatrics 2003;0(12):-
Objective To investigate the relationship between the genetic predisposition to type 2 diabetes mellitus(T2 DM)and mitochondrial DNA base variants in elderly patients.Methods PCR restriction fragment length polymorphism(PCR-RFLP)analysis was used to screen base variants at position 3243 and 3426 of mitochondrial DNA in 186 elderly cases with T2 DM and 170 healthy controls,and DNA sequence was confirmed.Results No carrier of 3243 A→G variant or 3426 A→G variant was found in both groups,however there was 1 case with 3290 T→C variant in diabetic group.Conclusions No significantly association was found between mitochondrial DNA 3243 or 3426 base variants and the predisposition of type 2 diabetes mellitus in elderly patients.
7.Clinical application of digital technology for standardized nursing of peristomal skin
Liping ZHANG ; Xiaodong DAI ; Qin XU ; Di SONG ; Ying FANG ; Huazhu LI ; Jing ZHAO
Chinese Journal of Practical Nursing 2015;31(17):1272-1275
Objective To explore an objective and standard approach for accurately evaluating peristomal skin lesions and providing comprehensive and professional nursing guidance.Methods Images of peristomal skin were taken by a cell phone camera and then evaluated by medical image processing and analyzing software combined with the condition option.The computer automatically calculates and provides professional nursing advice for patients developing peristomal skin lesions based on ostomy skin assesssment score system and ostomy skin nursing guideline for peristoma skin care.Advice from two ostomy nursing professionals were compared with that from the medical image analyzing software in two different cell phones.Results Results were analyzed by Kendall coordination coefficient W test to analyze the level of coordination among the experts and medical image analyzing system.There was agreement among study groups (W=0.902,P<0.05) with respect to DET score.Conclusions Application of medical image analyzing software for standard nursing and treatment of peristomal skin lesions provides standardized assessment and professional advice,reduces artificial distinctions and absence of nursing advices,and effectively improves nursing of peristomal skin.
8.Development of a nylon membrane chip for rapid detecting the diabetes-associated 45 mutant loci in mitochondrial DNA
Song-Mei LIU ; Xin ZHOU ; Han QIN ; Bing LIU ; Jian-Cheng TU ; Fang ZHENG ; Xia LI ;
Chinese Journal of Laboratory Medicine 2003;0(12):-
Objective To develop a nylon membrane chip for rapid and systematic detection of the diabetes-associated 45 mutant loci in mitochondrial DNA(mtDNA).Methods The mutant-and wild-type probes were designed for detection of 45 mutant loci in mtDNA with Primer Premier 5.0 and NCBI BLAST softwares and the 90 probes with 8 poly T were immobilized on the Hybond N~+ nylon membranes which were treated with 5?SSC Buffer by UV-crosslinking;Then asymmetric PCR was employed to obtain the target single strand DNA(ssDNA).The PCR products were labeled with biotin after purification.NBT/BCIP was used as substrate that yields a very intense purple signal followed by AP-avidin,and the signals were observed in 24 samples with known sequences to evaluate the chips,each sample was repeatedly measured three times.Results The specific target fragments of 45 loci can be amplified under the same condition with nine sets of primers.The annealing temperatures of the wild-type [(59.01?1.42)℃] and mutant-type [(59.34?1.29)℃ ] probes are so close(t=1.046,P =0.301)that hybridization can be performed at the same temperature.The spots on the membrane chip are distinct,regular and well-distributed.The results of positive-and negative-control are perfect.The signals of negative probes and the background are similar.The results of chip were nearly concordant with that of DNA sequences(?~2=113.132,Kappa value =0.888,P = 0.000)except for T16189C mutant.Conclusions We have successfully developed a nylon membrane chip for rapid and systematic detection of the diabetes-associated 44 mutant loci in mtDNA.It could be used for screening for diabetic patients and high-risk people.
9.Comparison of abdominal CT and pathological findings in chronic schistosomiasis
Tie LIU ; Min-Fang SONG ; Ji-Shun DONG ; Jian HE ; Ke-Qin ZHU ; Hai-Feng QIAN ;
Chinese Journal of Radiology 2000;0(11):-
Objective To retrospectivel y analyze the abdominal CT findings and pathological results of the chronic schist osomiasis so as to improve the diagnostic accuracy of the disease. M ethods The plain abdominal CT scanning was performed in 103 cases an d enhanced CT scanning in 81 cases. The pathological specimen which was consist ent with the section of CT scan was obtained in each cases. Results On CT scanning, liver cirrhosis was seen in 84 cases, various calci fication in liver in 71 cases, liver cancer in 12 cases, enlargement of sple en in 78 cases, calcification in spleen in 13 cases, wall-thickening in colon i n 27 cases, calcification in colon in 31 cases, and colon cancer in 9 cases. Pa thological examination revealed various fibrosis and formation of pseudolobule. The eggs and calcification could be seen in pseudolobule and septa, colonic sub mucosa, and regional lymph nodes. Fibrous hyperplasia in colonic wall and hyper plasia in mucous membrane were obvious. Fibrous hyperplasia and calcification w ere seen in spleen, but the eggs were not found. Conclusion The liver and colon are the major organs affected by chronic schistosomias is in abdomen, and the CT findings are obvious too. The pathological features o f spleen are accompanied with liver cirrhosis. CT is the important imaging meth od in diagnosing chronic schistosomiasis and pathological changes.
10.Preliminary Studies on Its Glycyrrhizinic Acid Metabolites of Endophytic Bacteria from Glycyrrhiza inflata Bat. of Xinjiang
Su-Qin SONG ; OTKURMAHMUT ; Shi-Jie FANG ; Mei-Ying GU ; Jing ZHU ;
Microbiology 2008;0(09):-
Total 149 strains of endophytic bacteria were isolated from different healthy organisms of Glycyrrhiza inflata Bat. from Xinjiang. The fermented liquids of these strains were screened by TLC and analysed by HPLC, and the glycyrrhizinic acid monoammonium salt was taken as standard control at the same time. Only one endophtytic bacterial stain of Bacillus subtilis could produce Glycyrrhizinic acid monoammonium salt analogue.