1.New problem and progress of transient tachypnea of the newborn
Chinese Journal of Applied Clinical Pediatrics 2014;29(9):713-715
Transient tachypnea of the newborn (TTN) is the most common cause of respiratory distress.TTN is a self-limiting disease which has a good prognosis but sometimes severe cases may cause pulmonary edema,respiratory distress,pulmonary air leak or persistent pulmonary hypertension.Researchers have many studies about pathogenesis,clinical features,treatment of TTN at home and abroad,and they have new progress.This article will summarize recent research progress on TTN.
2.Integrin-linked kinase and diabetic nephropathy
Journal of Medical Postgraduates 2004;0(01):-
Cellular functions like proliferation,differentiation,migration,morphogenesis and apoptosis are modulated by the extracellular matrix.Integrins are the prototypic heterodimeric transmembrane matrix receptors with competing affinities for individual extracellular matrix ligands.The intracellular integrin domain clusters cytoplasmic proteins into focal adhesion plaques for bidirectional(outside-in and inside-out) signaling.Integrin-linked kinase(ILK) is an intracellular serine/threonine protein kinase that interacts with the cytoplasmic domains of ?-integrins.ILK organizes the connections of the extracellular matrix via integrins to the cytoskeleton and is involved in adhesion plaque signaling,and it plays a crucial role in the pathogenesis of chronic renal fibrosis.High glucose induces the upregulation of the synthesis and activity of ILK in cultivated mouse podocytes and mesangial cells.The ILK protein level is significantly increased in diabetic glomeruli.ILK activity is likely to provide the basis for an effective therapeutic method for diabetic nephropathy.This review gives an introduction of ILK structure and function,followed by a summary of our current understanding of ILK in diabetic nephropathy with a special focus on glomerular cell-matrix interaction.
3.Study on positive rate of blocking antibody in women with recurrent spontaneous abortion administered by route and frequency of paternal lymphocyte immunotherapy
Hongling YU ; Xiaohui DENG ; Lan CHAO ; Chao CHEN ; Yilong HAN
Chinese Journal of Obstetrics and Gynecology 2013;48(12):903-906
Objective To investigates factors affecting the positive rate of blocking antibody treated by paternal lymphocyte immunotherapy in patients with recurrent spontaneous abortion (RSA).Methods From January 2008 to August 2012,326 RSA cases undergoing treatment in Infertility Center of Qilu Hospital were studied retrospectively.Those patients were divided into 2 groups randomly:260 cases in intradermal injection group were administered via bilateral forearm intradermal injections for immunotherapy once 21 days,then the blocking antibody was determined after 2 (23 cases),3 (73 cases),4 (74 cases),5(90 cases) times respectively,while in subcutaneous injection group,the 66 cases were administered via subcutaneous injection once 21 days,the blocking antibody measured after 3 times; In both cases,the blocking antibody was all determined 2 weeks later.The positive rate of blocking antibodies and the rate of successful pregnancy was recorded,and then followed up after the blocking antibody turning positive.Results (1)Positive rate of blocking antibodies:the positive rate of blocking antibodies were 17% (4/23),58% (42/73),72% (53/74) and 84% (76/90) in the 2,3,4,and 5 times of intradermal injection group,respectively (P < 0.05).In subcutaneous injection group,the positive rate of blocking antibodies was 38 % (25/66),which was significantly lower than that in group intradermal injection receiving 3 times immunotherapy (P <0.05).(2) The rate of pregnancy:the 176 patients out of 200 patients were pregnant when antibody was positive after immunotherapy,with 71.6% (126/176)of patients gained successful pregnancy(the length of pregnancy more than 5 months).Conclusions The route and frequency of administration of immunotherapy could influence the positive rate of blocking antibody.The rate of successful pregnancy will be increased after blocking antibody turning positive.
4.Discussion on quality control of dissertation review and oral defense of medical science degree postgraduates
Huali CHEN ; Zhu YANG ; Chao YU
Chinese Journal of Medical Education Research 2015;(2):123-126
The dissertation review and defense process of medical science degree graduate stu-dents has become a mere formality because of the manner of postgraduates cultivation, cultural factors and objective factors, resulting in poor quality of degree dissertation. This paper deeply analyzed the reasons for the above problems, and proposed five aspects of adjustment through the reviewer choosing, review process, evaluation scale, evaluation content and evaluation opinions to perfect the eval uation system. It also proposed four aspects of adjustment through strengthen the significance, thesis defense, defense supervision content development process and the detalled reply results to perfect defense system.
5.Design and application of quality improvement checklist of catheter-related blood stream infection in the intensive care units
Lian FANG ; Jianning XU ; Jiehui FENG ; Chao YU ; Yu CHEN
Chinese Journal of Practical Nursing 2013;(13):46-49
Objective To design quality improvement checklist of catheter-related blood stream infection (CRBSI),in order to improve the nursing quality of ICU and ensure nursing safety.Methods A new ICU quality improvement checklist of CRBSI was designed and applied for the quality control of the patients with central venous catheter from April to June 2012.The using rate of central venous catheter and incidence of CRBSI were observed.Results After application of the checklists,the using rate of central venous catheter was decreased and the incidence of CRBSI was decreased.Conclusions The checklist may help improve the prevention and control of CRBSI in ICU.
6.Effects of different fibrin glue combination modes on the proliferation and viability of dental follicle cells.
Hong LIU ; Chao YANG ; Guoqing CHEN ; Weidong TIAN ; Yu CHEN
West China Journal of Stomatology 2015;33(2):135-140
OBJECTIVEThis study explores the effects of different fibrin glue combination modes on the survival, proliferation, and apoptosis of dental follicle cells (DFCs), as well as to evaluate the feasibility and effectiveness of fibrin glue as transplantation material.
METHODSThe membranes of surviving DFCs were marked using 3,3'-dioctadecyloxa carbocyanine perchlorate (DIO), and the cell number was counted by using ImageJ2x software. The apoptotic cells were marked with prodium iodide (PI).
RESULTSCompared with that of the 3D-2 and 2D-1 groups, the degradation speed of the 3D-1 group was the slowest. DFCs could survive and grow well in fibrinogen with a concentration of 15 mg · mL⁻¹ supplemented with thrombin with a concentration of 2 U · mL⁻¹. In particular, the 3D-1 combination mode was significantly conducive to cell proliferation and stretching.
CONCLUSIONFibrin glue can be used as an effective cell transplantation material. The different combination modes have certain effects on cell proliferation. The 3D-1 combination mode is more conducive to the survival and proliferation of DFCs than other modes.
Apoptosis ; Cell Proliferation ; Cell Survival ; Dental Sac ; cytology ; Fibrin Tissue Adhesive ; pharmacology ; Fibrinogen ; Humans ; Thrombin
7.Expression and clinical significance in pancreatic cancer of transcriptional intermediary factor 1β
Chao YU ; Jianxin JIANG ; Ling CHEN ; Chengyi SUN
Chinese Journal of Hepatobiliary Surgery 2015;21(1):14-17
Objective To investigate transcription intermediary factor 1β (TIF1β) expression in paracancerous pancreatic tissue and pancreatic tumor tissue by using tissue microarray.The relationship between TIF1β expression and clinicopathological factors in patients with pancreatic cancer was discussed.Method Tissuc microarray and immunohistochemical assay were utilized to detect expression of TIF1β protein in pancreatic cancer tissues and the corresponding non-tumor tissues from 91 cases.Results TIF1β protein were present in pancreatic cancer tissues as well as corresponding non-tumor tissues with varying degrees of expression,and was located in the nucleus.TIF1β expression in pancreatic cancer tissue was significantly higher than that of adjacent tissues (P < 0.05).And it was noted that there was close correlations between TIF1β expression and clinical pathological staging,lymph node metastasis and TNM grading (P < 0.05).Conclusions TIF1β is highly expressed in pancreatic cancer,clinically correlated with pathological staging,lymph node metastasis and TNM grading.TIF1β may play an important role in development of pancreatic cancer.
8.Comparison of Several Methods and Their Progresses on Molecular Authentication of Lonicera japonica Thunb
Chao JIANG ; Luqi HUANG ; Yuan YUAN ; Shulin YU ; Min CHEN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(8):1831-1839
Authentications of Chinese herbal medicine have a critical effect in Chinese clinical medicine. DNA molecular marker, as an important component for true or false authentication, is more and more widely used in iden-tification of Chinese medicinal materials. At the same time, many new methods for authentication of Chinese medici-nal materials are continuously emerging. But the systematically comparative analysis of these new methods is lack. The present study taking Lonicera japonica as an example, systematically compared principles, characteristics, ex-periment methods, detection time and the application scope of express sequence tag-simple sequence repeat (EST-SSR), polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), allele-specific PCR (AS-PCR), DNA barcoding and loop-mediated isothermal amplification (LAMP), and put forward corresponding improve-ment opinions. This study can help to screen appropriate approach for rapid authentication of L. japonica and offer demonstrating to other Chinese herbal medicines.
9.One stage repair of soft tissue and nerve defect of thumb with island flap of first dorsal metacarpal artery
Wenlong ZHANG ; Zengtao WANG ; Shunhong GAO ; Chao CHEN ; Zhiliang YU
Chinese Journal of Trauma 2011;27(12):1102-1105
Objective To discuss the treatment and clinical efficacy of repair of soft tissue and nerve defect of thumb with island flap of first dorsal metacarpal artery based on the first dorsal metacarpal artery carrying dorsal branch graft of digital proper nerve.Methods The skin and nerve defect in 14 thumbs were repaired by dorsal island flap of index fingers based on the first dorsal metacarpal artery carrying dorsal branch graft of digital proper nerve.The size of skin defect ranged from 52 mm × 32 mm to 10 mm × 8 mm.The length of the nerve defect ranged from 9 mm to 22 mm.Results The average followup was 6-35 months.All 14 flaps survived with satisfactory appearance and function.The injured side of thumb pulp sensation recovered S3 + and the injured two-point discrimination ranged from 4 mm to 7 mm.No scar contracture or sensory dysfunction complication were observed in the donor sites.Conclusions The repair of soft tissue and nerve defect of thumb with dorsal island flap of index finger based on the first dorsal metacarpal artery carrying dorsal branch graft of digital proper nerve is recommendable,since it can obtain satisfactory clinical efficacy and be easily and conveniently oerformed.
10.The role of tissue factor in tumor's invasion and progress in experimental targeted therapy
Haitao MA ; Nong CAO ; Yongjiang YU ; Chen CHAI ; Chao GUO
International Journal of Surgery 2010;37(7):469-472
Tissue factor(TF)is the most important factor in the physiological coagulation process.TF also plays important roles in tumor growth,angiogenesis,invasion and metastasis by combining with factor VII.In recent years,targeted therapy for the TF has made remarkable progress,showing its significant inhibition of tumor tissue and metastasis.