1.Association of sleep duration and risk of frailty among the elderly over 80 years old in China: a prospective cohort study.
Wen Fang ZHONG ; Fen LIANG ; Xiao Meng WANG ; Pei Liang CHEN ; Wei Qi SONG ; Ying NAN ; Jia Xuan XIANG ; Zhi Hao LI ; Yue Bin LYU ; Xiao Ming SHI ; Chen MAO
Chinese Journal of Preventive Medicine 2023;57(5):607-613
		                        		
		                        			
		                        			Objective: To explore the association between sleep duration and the risk of frailty among the elderly over 80 years old in China. Methods: Using the data from five surveys of the China Elderly Health Influencing Factors Follow-up Survey (CLHLS) (2005, 2008-2009, 2011-2012, 2014, and 2017-2018), 7 024 elderly people aged 80 years and above were selected as the study subjects. Questionnaires and physical examinations were used to collect information on sleep time, general demographic characteristics, functional status, physical signs, and illness. The frailty state was evaluated based on a frailty index that included 39 variables. The Cox proportional risk regression model was used to analyze the correlation between sleep time and the risk of frailty occurrence. A restricted cubic spline function was used to analyze the dose-response relationship between sleep time and the risk of frailty occurrence. The likelihood ratio test was used to analyze the interaction between age, gender, sleep quality, cognitive impairment, and sleep duration. Results: The age M (Q1, Q3) of 7 024 subjects was 87 (82, 92) years old, with a total of 3 435 (48.9%) patients experiencing frailty. The results of restricted cubic spline function analysis showed that there was an approximate U-shaped relationship between sleep time and the risk of frailty. When sleep time was 6.5-8.5 hours, the elderly had the lowest risk of frailty; Multivariate Cox proportional risk regression model analysis showed that compared to 6.5-8.5 hours of sleep, long sleep duration (>8.5 hours) increased the risk of frailty by 13% (HR: 1.13; 95%CI: 1.04-1.22). Conclusion: There is a nonlinear association between sleep time and the risk of frailty in the elderly.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Frailty/epidemiology*
		                        			;
		                        		
		                        			Sleep Duration
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Sleep/physiology*
		                        			;
		                        		
		                        			China/epidemiology*
		                        			
		                        		
		                        	
2.Clinical practice guidelines for ultrasound-guided breast lesions and lymph nodes biopsy: Chinese society of breast surgery (CSBrS) practice guidelines 2021.
Jin-Fei MA ; Lu-Yan CHEN ; Shuang-Ling WU ; Ying-Ying XU ; Fan YAO ; Feng JIN ; Pei-Fen FU ; Bo CHEN
Chinese Medical Journal 2021;134(12):1393-1395
		                        		
		                        		
		                        		
		                        	
3.Investigation of microbial community involved in fermentation of Massa Medicata Fermentata.
Yan-Lin CHEN ; Yun-Ting WANG ; Kai-Le GUAN ; Xu ZHOU ; Pei-Jie HAN ; Xue-Wei WANG ; Fen-Yan BAI ; Du JIE ; Yu-Zhen REN
China Journal of Chinese Materia Medica 2020;45(21):5219-5225
		                        		
		                        			
		                        			This study aimed to clarify the microbial diversity, dominant species and the change of community structures in the fermentation of Liushenqu(Massa Medicata Fermentata), and explore the material foundation of its pharmacodynamics effect. On the basis of standardizing the fermentation process, Massa Medicata Fermentata was prepared by screening and optimizing the recipes and the standard formula issued by the Ministry. The community structure and growth process of fungi and bacteria in the samples at five time points(0, 17, 41, 48, 65 h) in the fermentation process of Massa Medicata Fermentata were analyzed by using isolation and culture of eight different media and high-throughput DNA sequencing technology. The results indicated that the samples of the two recipes pre-sented high microbial diversity at the initial fermentation stage, with Aspergillus spp. as the dominant species. As the fermentation process goes forward, Saccharomycopsis fibuligera and Rhizopus oryzae soon became dominant species from 17 h after fermentation commencement point to the fermentation end, while the other species were inhibited at a lower level from 17 h. The species diversity of bacteria in the initial fermentation samples was also high, and Enterobacter was the dominant species. Enterobacter cloacae, Pediococcus pentosaceus and Cronobacter sakazakii became dominant bacterial species 17 h after fermentation commencement, while the species diversity was decreased. Our results will be a scientific basis for promoting the fermentation process of Massa Medicata Fermentata by using pure microbial cultures.
		                        		
		                        		
		                        		
		                        			Drugs, Chinese Herbal
		                        			;
		                        		
		                        			Fermentation
		                        			;
		                        		
		                        			Fungi/genetics*
		                        			;
		                        		
		                        			Microbiota
		                        			;
		                        		
		                        			Saccharomycopsis
		                        			
		                        		
		                        	
4.Reducing the consumption of personal protective equipment by setting up a multifunctional sampling station in the emergency department to screen for COVID-19 infection in Taiwan.
Po-Ting LIN ; Ting-Yuan NI ; Tren-Yi CHEN ; Chih-Pei SU ; Hsiao-Fen SUN ; Mu-Kuan CHEN ; Chu-Chung CHOU ; Po-Yu WANG ; Yan-Ren LIN
Environmental Health and Preventive Medicine 2020;25(1):34-34
		                        		
		                        			
		                        			In Taiwan, high-risk patients have been identified and tested for preventing community spread of COVID-19. Most sample collection was performed in emergency departments (EDs). Traditional sample collection requires substantial personal protective equipment (PPE), healthcare professionals, sanitation workers, and isolation space. To solve this problem, we established a multifunctional sample collection station (MSCS) for COVID-19 testing in front of our ED. The station is composed of a thick and clear acrylic board (2 cm), which completely separates the patient and medical personnel. Three pairs of gloves (length, 45 cm) are attached and fixed on the outside wall of the MSCS. The gloves are used to conduct sampling of throat/nasal swabs, sputum, and blood from patients. The gap between the board and the building is only 0.2 cm (sealed with silicone sealant). ED personnel communicate with patients using a small two-way broadcast system. Medical waste is put in specific trashcans installed in the table outside the MSCS. With full physical protection, the personnel conducting the sampling procedure need to wear only their N95 mask and gloves. After we activated the station, our PPE, sampling time, and sanitization resources were considerably conserved during the 4-week observation period. The MSCS obviously saved time and PPE. It elevated the efficiency and capacity of the ED for handling potential community infections of COVID-19.
		                        		
		                        		
		                        		
		                        			Betacoronavirus
		                        			;
		                        		
		                        			Clinical Laboratory Techniques
		                        			;
		                        		
		                        			Coronavirus Infections
		                        			;
		                        		
		                        			diagnosis
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			Emergency Service, Hospital
		                        			;
		                        		
		                        			organization & administration
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Mass Screening
		                        			;
		                        		
		                        			methods
		                        			;
		                        		
		                        			Pandemics
		                        			;
		                        		
		                        			Personal Protective Equipment
		                        			;
		                        		
		                        			supply & distribution
		                        			;
		                        		
		                        			Pneumonia, Viral
		                        			;
		                        		
		                        			diagnosis
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			Taiwan
		                        			;
		                        		
		                        			epidemiology
		                        			
		                        		
		                        	
5.RON and MET Co-overexpression Are Significant Pathological Characteristics of Poor Survival and Therapeutic Targets of Tyrosine Kinase Inhibitors in Triple-Negative Breast Cancer
Tian-Hao WENG ; Min-Ya YAO ; Xiang-Ming XU ; Chen-Yu HU ; Shu-Hao YAO ; Yi-Zhi LIU ; Zhi-Gang WU ; Tao-Ming TANG ; Pei-Fen FU ; Ming-Hai WANG ; Hang-Ping YAO
Cancer Research and Treatment 2020;52(3):973-986
		                        		
		                        			 Purpose:
		                        			Triple-negative breast cancer (TNBC) is highly malignant and has poor prognosis and a high mortality rate. The lack of effective therapy has spurred our investigation of new targets for treating this malignant cancer. Here, we identified RON (macrophage-stimulating 1 receptor) and MET (MET proto-oncogene, receptor tyrosine kinase) as a prognostic biomarker and therapeutic targets for potential TNBC treatment. 
		                        		
		                        			Materials and Methods:
		                        			We analyzed RON and MET expression in 187 primary TNBC clinical samples with immunohistochemistry. We validated the targeted therapeutic effects of RON and MET in TNBC using three tyrosine kinase inhibitors (TKIs): BMS-777607, INCB28060, and tivantinib. The preclinical therapeutic efficacy of the TKIs was mainly estimated using a TNBC xenograft model. 
		                        		
		                        			Results:
		                        			Patients with TNBC had widespread, abnormal expression of RON and MET. There was RON overexpression, MET overexpression, and RON and MET co-overexpression in 63 (33.7%), 63 (33.7%), and 43 cases (23.0%), respectively, which had poor prognosis and short survival. In vivo, the TKI targeting RON ant MET inhibited the activation of the downstream signaling molecules, inhibited TNBC cell migration and proliferation, and increased TNBC cell apoptosis; in the xenograft model, they significantly inhibited tumor growth and shrank tumor volumes. The TKI targeting RON and Met, such as BMS-777607 and tivantinib, yielded stronger anti-tumor effects than INCB28060. 
		                        		
		                        			Conclusion
		                        			RON and MET co-overexpression can be significant pathological characteristics in TNBC for poor prognosis. TKIs targeting RON and MET have stronger drug development potential for treating TNBC. 
		                        		
		                        		
		                        		
		                        	
6.Comparison of haploidentical hematopoietic stem cell transplantation and matched-sibling donor transplantation for the treatment of paroxysmal nocturnal hemoglobinuria.
Li Min LIU ; Hui Fen ZHOU ; Qing Yuan WANG ; Hui Ying QIU ; Xiao Wen TANG ; Yue HAN ; Cheng Cheng FU ; Zheng Ming JIN ; Su Ning CHEN ; Ai Ning SUN ; Miao MIAO ; De Pei WU
Chinese Journal of Hematology 2019;40(4):306-311
		                        		
		                        			
		                        			Objective: To compare the outcomes between haploidentical donor hematopoietic stem cell transplantation (haplo-HSCT) and matched-sibling donor transplantation (MSD-HSCT) for paroxysmal nocturnal hemoglobinuria (PNH) . Methods: The clinical data of 40 PNH patients received HSCT (haplo-HSCT=25, MSD-HSCT=15) from July 2007 to May 2018 were analyzed retrospectively to compare the outcomes between haplo-HSCT and MSD-HSCT groups. Results: There were no differences in terms of gender, age, patients of PNH-AA and median time from diagnosis to transplantation between the 2 groups (P>0.05) . The median values of absolute mononuclear cell counts and CD34+ cells infused were 10.74 (4.80-22.86) ×108/kg and 12.19 (5.14-17.25) ×108/kg (P=0.866) , 3.57 (0.68-7.80) ×106/kg and 4.00 (3.02-8.42) ×106/kg (P=0.151) respectively, in haplo-HSCT and MSD-HSCT groups. All patients attained complete engraftment, no patient occurred graft failure. The median durations for myeloid and platelet engraftment were 12 (range, 9-26) and 11 (range, 7-15) days (P=0.065) , 19 (range, 11-75) and 13 (range, 11-25) days (P=0.027) respectively, in haplo-HSCT and MSD-HSCT groups. During a median follow-up of 26 (4-65) months in haplo-HSCT and 36 (4-132) months in MSD-HSCT groups (P=0.294) , the incidences of grade Ⅰ-Ⅳ acute graft-versus-host disease (aGVHD) were 32.0% and 20.0% (P=0.343) , grade Ⅱ-Ⅳ aGVHD were 16.0%, 13.3% (P=0.759) , chronic GVHD were 30.7% and 24.6% (P=0.418) , moderate-severe chronic GVHD were 12.7% and 7.1% (P=0.522) respectively, in haplo-HSCT and MSD-HSCT groups. The incidences of infection were 32.0% (8/25) and 26.7% (4/15) (P=1.000) respectively, in haplo-HSCT and MSD-HSCT groups. No patients occurred early death and relapse. Three-year estimated overall survival (OS) were (86.5±7.3) % and (93.3 ±6.4) % (P=0.520) , GVHD-free and failure-free survival (GFFS) were (78.3±8.6) % and (92.9±6.9) % (P=0.250) respectively, in haplo-HSCT and MSD-HSCT groups. Conclusion: The preliminary results indicated that haplo-HSCT was a feasible choice for PNH with favorable outcomes, haplo-HSCT and MSD-HSCT produced similar therapeutic efficacy.
		                        		
		                        		
		                        		
		                        			Graft vs Host Disease
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			;
		                        		
		                        			Hemoglobinuria, Paroxysmal/therapy*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Siblings
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
7.Outcomes of allogeneic hematopoietic stem cell transplantation in patients with paroxysmal nocturnal hemoglobinuria compared to paroxysmal nocturnal hemoglobinuria-aplastic anemia syndrome.
Li Min LIU ; Hui Fen ZHOU ; Qing Yuan WANG ; Hui Ying QIU ; Xiao Wen TANG ; Yue HAN ; Cheng Cheng FU ; Zheng Ming JIN ; Su Ning CHEN ; Ai Ning SUN ; Miao MIAO ; De Pei WU
Chinese Journal of Hematology 2019;40(6):472-476
		                        		
		                        			
		                        			Objective: To compare the outcomes of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for paroxysmal nocturnal hemoglobinuria (PNH) with paroxysmal nocturnal hemoglobinuria-aplastic anemia (PNH-AA) syndrome. Methods: The outcomes of 46 patients who received allo-HSCT (16 PNH patients, 30 PNH-AA patients) from July 10, 2007 to June 2, 2018 were analyzed retrospectively. The conditioning regimen was busulfan, cyclophosphoramide, and ATG in haploidentical donors and unrelated donors. Patients with matched sibling donors were treated with the fludarabine, cyclophosphamide, and ATG regimen. Results: There were no differences of baseline data between the 2 groups except gender distribution and the numbers of haploidentical donor transplantation. The median values of absolute nucleated cell counts were 10.58 (3.83-13.83) ×10(8)/kg in the PNH group and 10.81 (3.96-33.40) ×10(8)/kg in the PNH-AA group (P=0.668) . The median doses of CD34(+) cells infused were 5.00 (3.14-8.42) ×10(6)/kg and 3.57 (1.97-6.17) ×10(6)/kg (P=0.002) , respectively. All patients obtained complete engraftment. The median time for myeloid engraftment were 11 (7-14) days in the PNH group and 12 (10-26) days in the PNH-AA group (P=0.003) . The median time for platelet engraftment were 13 (11-16) days and 18 (12-75) days (P=0.002) , respectively, after a median follow-up of 36 (4-132) months in the PNH group and 26 (4-75) months in the PNH-AA group (P=0.428) . There were no differences of incidence rates of acute graft-versus-host disease (aGVHD) , chronic GVHD and infection between PNH and PNH-AA groups (P>0.05) . No patient occurred early death and relapse. The estimated 3-year overall survival (OS) of PNH and PNH-AA groups were (100.0±0.0) % and (85.7± 6.6) % (P=0.141) , GVHD-free and failure-free survival (GFFS) were (100.0±0.0) %, (78.7±7.7) % (P=0.067) . Conclusions: allo-HSCT is effective for patients with PNH and PNH-AA syndrome. The preliminary results indicate that myeloid and platelet engraftment in PNH group were faster than PNH-AA group. There were no differences in OS and GFFS between PNH group and PNH-AA group.
		                        		
		                        		
		                        		
		                        			Anemia, Aplastic/therapy*
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			;
		                        		
		                        			Hemoglobinuria, Paroxysmal/therapy*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Transplantation, Homologous
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
8.Clinical Charcteristics and Prognostic Analysis of 28 cases of Pediatric Myelodysplastic Syndrome.
Jian WANG ; Shao-Fen LIN ; Qi-Hui CHEN ; Kun-Yin QIU ; Hong-Gui XU ; Ke HUANG ; Yang LI ; Jian-Pei FANG ; Zhou Dun-Hua ZHOU
Journal of Experimental Hematology 2018;26(6):1695-1701
		                        		
		                        			OBJECTIVE:
		                        			To analyze the clinical features and prognosis of 28 children with myelodysplastic syndrome (MDS) and to screen the high risk factors affecting the prognosis so as to provide the new ideas for standard of clinical diagnosis and therapy.
		                        		
		                        			METHODS:
		                        			The clinical data of 28 children with newly diagnosed MDS treated in our hospital from March 1994 to July 2016 were analyzed retrospectively, the features of disease onset and the results of laboratory examination were summarized, all MDS children were followed up, the prognosis and the high risk factors affecting the prognosis were evaluated.
		                        		
		                        			RESULTS:
		                        			In all 28 MDS children, the ratio of male to female was 1.8∶1, the incidence of MDS was observed in boys, while the low incidence of MDS was found in older children. The clinical manifestations were mainly the decrease of three series blood cells in 16 cases (57.14%), other cases presented simple anemia (7.1%), simple thrombocytopenia (7.1%), neutropenia with anemia (14.29%), and anemia with thrombocytopenia (14.28%).The bone marrow image showed mainly hyperplasia (82.14%), and the pathological hematopoiesis, moreover the manifistation of pathological hematopoiesis was different in forma and degree; the bone marrow biopsy showed the typical abnormal localization of immature precursor(ALIP) accepted for 33.33%; the chromosome karyotype detection showed the detected rate of chronosome abnormality was 41.18%. The median follow-up time was 1.75 years. 5 children with MDS received the hematopoietic stem cell transplantation (HSCT), among them 1 dead and 4 maintained CCR; Out of other 23 patients no-received HSCT, 7 cases given up treatment after confirmed diagnosis, 16 cases received the chemotherapy (2 cases given up treatment after CR, 5 cases transformed into AML, 3 cases relapsed, 3 cases maintained CCR), 11 cases dead, 9 cases failed to be followed up. The 5-years OS rate and EFS rate in all patients were predicted as (38.2±11.3)% and (35.3±11.3)%,respectively, among them, the OS and EFS rates of patients received the HSCT allo superior to those of patients did not received HSCT [(80.0±17.9)% vs.(22.8±11.5)%] (P<0.05) and [(80.0±17.9)% vs (17.5±11.1)%](P<0.05). Analysis showed that in addition to receiving the HSCT(P<0.05), platelet decrease in peripheral blood(P<0.01), the age, sex, existance of micromegakaryocytes in bone marrow and progressive MDS or no influenced not on the prognosis(P>0.05).
		                        		
		                        			CONCLUSION
		                        			The children MDS is rare and easy to be misdiagnosis, moreover displays more high heterogeneity and poor prognosis, thereby the early diagnosis is crucial, in addition, the system of prognosis evaluation is imperative to be perfected. The HSCT may be the effective method for curative treatment of childhood MDS.
		                        		
		                        		
		                        		
		                        			Child
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Karyotyping
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Myelodysplastic Syndromes
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
9.Clinical features and curative effect analysis of patients with myeloid neoplasms and RUNX1 mutations.
Si Fan CHEN ; Tan Zhen WANG ; Shu Hui JIANG ; Hong Jie SHEN ; Yang XU ; Hui Fen ZHOU ; De Pei WU
Chinese Journal of Hematology 2018;39(12):983-988
		                        		
		                        			
		                        			Objective: To investigate the survival and prognostic factors of allogeneic hematopoietic stem-cell transplantation (allo-HSCT) for patients with myeloid neoplasms and RUNX1 mutations. Methods: From July 2014 to April 2018, the clinical data of forty-two AML/MDS patients with RUNX1 mutations in the First Affiliated Hospital of Soochow University were retrospectively analyzed. The clinical characteristic features and distribution of the mutations frequently observed with RUNX1 mutations were summarized, the prognosis of allo-HSCT for these patients was also analyzed. Results: Among 42 AML/MDS patients with RUNX1 mutations, 27 were male, 15 were female. The median age was 43.5 (16-68) years old. There are 31 patients in allo-HSCT group and 11 patients in chemotherapy group. RUNX1 mutations co-occurred with many other gene mutations, the most frequent mutations were FLT3 (26.2%, 11/42) . Interestingly, FLT3 mutations only occurred in AML patients compared with MDS patients (P=0.014) . ASXL1 (25%, 3/12) mutations were observed as the most frequent co-mutations in MDS patients. One-year overall survival (OS) , disease-free survival (DFS) of allo-HSCT and chemotherapy patients were (70.6±9.0) %, (61.0±9.4) % and (34.4±16.7) %, (22.4±15.3) %, respectively. When OS and DFS between allo-HSCT and chemotherapy patients were compared, significant differences (χ(2)=4.843, 4.320, P<0.05) were showed. In univariate analysis, transplant age >45 years was a negative effect for OS [HR=4.819 (95% CI 1.145-20.283) , P=0.032] and DFS [HR=5.945 (95% CI 1.715-20.604) , P=0.005]. Also, complex chromosome karyotype abnormality was a negative effect for OS [HR=5.572 (95%CI 1.104-28.113) , P=0.038]. Conclusion: Transplant age (>45 years) and complex chromosome karyotype abnormality were negative prognostic factors in allo-HSCT for myeloid neoplasms patients with RUNX1 mutations.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Core Binding Factor Alpha 2 Subunit/genetics*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Leukemia, Myeloid, Acute/genetics*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Mutation
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Transplantation, Homologous
		                        			
		                        		
		                        	
10.Effect of 15-Deoxy-Δ-prostaglandin JNanocapsules on Inflammation and Bone Regeneration in a Rat Bone Defect Model.
Qi TANG ; Li-Li CHEN ; Fen WEI ; Wei-Lian SUN ; Li-Hong LEI ; Pei-Hui DING ; Jing-Yi TAN ; Xiao-Tao CHEN ; Yan-Min WU
Chinese Medical Journal 2017;130(3):347-356
BACKGROUND15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2), one of the major metabolites from prostaglandin D2 in arachidonic acid metabolic pathway, has potential anti-inflammatory properties. The objective of this study was to explore the effects of 15d-PGJ2-loaded poly(D,L-lactide-co-glycolide) nanocapsules (15d-PGJ2-NC) on inflammatory responses and bone regeneration in local bone defect.
METHODSThe study was conducted on 96 Wistar rats from June 2014 to March 2016. Saline, unloaded nanoparticles, free 15d-PGJ2or 15d-PGJ2-NC, were delivered through a collagen vehicle inside surgically created transcortical defects in rat femurs. Interleukin-6 (IL-6), interleukin-1 beta (IL-1β), and tumor necrosis factor-alpha (TNF-α) levels in the surrounding soft tissue were analyzed by Western blot and in the defect by quantitative real-time polymerase chain reaction over 14 days. Simultaneously, bone morphogenetic protein-6 (BMP-6) and platelet-derived growth factor-B (PDGF-B) messenger RNA (mRNA) in the defect were examined. New bone formation and EphrinB2 and osteoprotegerin (OPG) protein expression in the cortical defect were observed by Masson's Trichrome staining and immunohistochemistry over 28 days. Data were analyzed by one-way analysis of variance. Least-significant difference and Dunnett's T3 methods were used with a bilateral P< 0.05.
RESULTSApplication of l5d-PGJ2-NC (100 μg/ml) in the local bone defect significantly decreased IL-6, IL-1β, and TNF-α mRNA and protein, compared with saline-treated controls (P < 0.05). l5d-PGJ2-NC upregulated BMP-6 and PDGF-B mRNA (P < 0.05). New bone formation was observed in the cortical defect in l5d-PGJ2-NC-treated animals from 7th day onward (P < 0.001). Expression of EphrinB2 and OPG presented early on day 3 and persisted through day 28 in 15d-PGJ2-NC group (P < 0.05).
CONCLUSIONStable l5d-PGJ2-NC complexes were prepared that could attenuate IL-6, IL-1β, and TNF-α expression, while increasing new bone formation and growth factors related to bone regeneration.
Animals ; Bone Morphogenetic Protein 6 ; metabolism ; Bone Regeneration ; drug effects ; Inflammation ; drug therapy ; Interleukin-1beta ; metabolism ; Interleukin-6 ; metabolism ; Male ; Platelet-Derived Growth Factor ; metabolism ; Prostaglandin D2 ; analogs & derivatives ; therapeutic use ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha ; metabolism
            
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