BACKGROUND: The presence of fibrosis is a criterion for subtype classification in the newly updated hypersensitivity pneumonitis (HP) guidelines. The present study aimed to summarize differences in clinical characteristics and prognosis of non-fibrotic hypersensitivity pneumonitis (NFHP) and fibrotic hypersensitivity pneumonitis (FHP) and explore factors associated with the presence of fibrosis. METHODS: In this prospective cohort study, patients diagnosed with HP through a multidisciplinary discussion were enrolled. Collected data included demographic and clinical characteristics, laboratory findings, and radiologic and histopathological features. Logistic regression analyses were performed to explore factors related to the presence of fibrosis. RESULTS: A total of 202 patients with HP were enrolled, including 87 (43.1%) NFHP patients and 115 (56.9%) FHP patients. Patients with FHP were older and more frequently presented with dyspnea, crackles, and digital clubbing than patients with NFHP. Serum levels of carcinoembryonic antigen, carbohydrate antigen 125, carbohydrate antigen 153, gastrin-releasing peptide precursor, squamous cell carcinoma antigen, and antigen cytokeratin 21-1, and count of bronchoalveolar lavage (BAL) eosinophils were higher in the FHP group than in the NFHP group. BAL lymphocytosis was present in both groups, but less pronounced in the FHP group. Multivariable regression analyses revealed that older age, <20% of lymphocyte in BAL, and ≥1.75% of eosinophil in BAL were risk factors for the development of FHP. Twelve patients developed adverse outcomes, with a median survival time of 12.5 months, all of whom had FHP. CONCLUSIONS Older age, <20% of lymphocyte in BAL, and ≥1.75% of eosinophil in BAL were risk factors associated with the development of FHP. Prognosis of patients with NFHP was better than that of patients with FHP. These results may provide insights into the mechanisms of fibrosis in HP.
Humans ; Bronchoalveolar Lavage Fluid ; Prospective Studies ; Alveolitis, Extrinsic Allergic/diagnosis* ; Fibrosis ; Carbohydrates

Adult ; Endocarditis/surgery* ; Endocarditis, Bacterial/surgery* ; Hospital Mortality ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; Young Adult

0bjective To investigate the status of readiness for hospital discharge of chronic renal failure patients undergoing arteriovenous fistula surgery and analyze its influencing factors. Methods A total of 229 diabetic patients who were discharged from the department of endocrinology were surveyed by the general data questionnaire, Readiness for Hospital Discharge Scale (RHDS), Quality of Discharge Teaching Scale (QDTS) and Social Support Rating S1cale (SSRS). Results The total score of RHDS was (157.20±19.39) points, and the items were equally (7.15±0.88) points. Education level, inhabiting pattern, discharge guidance skills and subjective support entered the readiness for hospital discharge regression equation of chronic renal failure patients undergoing arteriovenous, accounting for a total of 33.1% of all the variation. Conclusions The readiness for hospital discharge of chronic renal failure patients undergoing arteriovenous fistula surgery is intermediate level. Education level, inhabiting pattern, discharge guidance skills and subjective support could exert important influence on readiness for hospital discharge of chronic renal failure patients undergoing arteriovenous fistula surgery.

PURPOSE: Epirubicin is one of the most effective drugs against osteosarcoma. miR-1301 is involved in the occurrence and development of osteosarcoma. Whether miR-1301 is responsible for the chemosensitivity of osteosarcoma cells to epirubicin remains largely unknown. MATERIALS AND METHODS: U2OS and SAOS-2 cells were treated with various concentrations of epirubicin. Flow cytometry was employed to evaluate cell apoptotic rate. Cell proliferation was measured by Cell Counting Kit-8 assay. Western blot and quantitative real-time polymerase chain reaction were utilized to detect the expressions of B-cell lymphoma-2 (Bcl-2), Bcl-2 assaciated X protein (Bax), cleaved-caspase-3, cleaved-poly (ADP-ribose) polymerases (PARP1), TP53-regulated inhibitor of apoptosis 1 (TRIAP1), and microRNA-1301 (miR-1301). The relationship between miR-1301 and TRIAP1 was determined by luciferase reporter assay. RESULTS: Epirubicin inhibited proliferation in a dose-dependent manner, induced apoptosis, decreased the expression of Bcl-2, and increased the expressions of Bax, cleaved-caspase-3, and cleaved-PARP1 in osteosarcoma cells. miR-1301 was downregulated in U2OS and SAOS-2 cells. Importantly, epirubicin significantly increased the levels of miR-1301. Overexpression of miR-1301 suppressed proliferation and promoted apoptosis. Interestingly, those effects were enhanced by epirubicin. In contrast, miR-1301 depletion attenuated the epirubicin-mediated anti-osteosarcoma effect. miR-1301 negatively regulated the expression of TRIAP1 in U2OS and SAOS-2 cells. Furthermore, epirubicin inhibited the mRNA and protein levels of TRIAP1 by upregulating miR-1301 levels. Epirubicin suppressed cell proliferation by downregulating TRIAP1. CONCLUSION: miR-1301 was implicated in the chemosensitivity of osteosarcoma to epirubicin by modulating TRIAP1.
Apoptosis ; B-Lymphocytes ; Blotting, Western ; Cell Count ; Cell Proliferation ; Epirubicin ; Flow Cytometry ; Luciferases ; Osteosarcoma ; Real-Time Polymerase Chain Reaction ; RNA, Messenger

BACKGROUND:Ankle fracture combined with deltoid ligament injury can disorders the anatomical structure of ankle joint. Improper treatment can cause more serious complication, such as walking disorders.
OBJECTIVE:To evaluate the clinical effect of anchor repair plus open reduction internal fixation in the treatment of ankle fracture combined with deltoid ligament injury.
METHODS:Thirty-five patients with ankle fracture combined with deltoid ligament injury were selected from the Department of Orthopedics, the Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University between May 2009 and January 2011, including 24 males and 11 females, and al the patients were treated with anchor repair plus open reduction internal fixation. The age of the patients was 22-61 years, averaged 35.7 years, and al the patients were closed injury without other fractures. The treatment time was 2-10 days, average 4.6 days. According to Lauge-Hansen classification, 26 patients had supination-eversion ankle fracture and nine patients had pronation-eversion. According to Danis-Weber classification, 26 patients were C type and nine patients were B type. After al the three patients were treated with anchor repair, the treatment effect of anchor repair was evaluated through assessing the improvement of clinical symptoms and signs, as wel as the imaging examination of repair and healing.
RESULTS AND CONCLUSION:Al the 35 patients were fol owed-up for 9-26 months, average 13.8 months. Al the patients got Ⅰ stage healing without complications of infection and screw loosening. Fol ow-up X-ray film showed al the 35 patients with ankle fracture achieved bone union, the healing time was 10-21 weeks, average 13.6 weeks. Modified Baird-Jackson score system showed excel ent in 11 cases, good in nine cases, average in four cases, poor in one case, and the excel ent and good rate was 85.7%. At 6 months after internal fixation, the stress X-ray film examination showed the mal eolus gap of the affect side was (3.49±0.36) mm, the mal eolus gap of the healthy side was (3.37±0.41) mm, and there was no significant difference (P>0.05). The results indicate anchor in the repair of deltoid ligament injury during the treatment of ankle fracture with open reduction internal fixation can achieve satisfactory therapeutic effect.

This study was aimed to evaluate an effective and stable method for obtaining mesenchymal stem cells (MSC) and endothelial progenitor cells (EPC) from the rabbit bone marrow and to investigate the biological characteristics of MSC and EPC. Mononuclear cells were obtained from rabbit bone marrow using density gradient method, and were differentially adhered to the cell culture plate enclosed with fibronectin. Then, MSC and EPC were amplified with EGB-2MV medium. Trypan blue method was used to test the passage survival rate. Growth curve, MTT and DNA cycle were used to evaluate the proliferation ability of MSC and EPC. MSC were identified with induced differentiation into the osteoblasts and adipocytes, and their immune phenotype was detected by flow cytometry (FCM). EPC were characterized by the special digestion of Dil-ac-LDL, FITC-UEA-I, and the conjunction with CD133, VEGFR2/KDR and CD34, their purity was also calculated. The results indicated that the colony was obviously formed when the mononuclear cells were cultured for 24 hours and, 80% of the cells became long spindle and integrated at d 8. Cells, which were adhered for twice, were cultured with EGM-2MV medium, began to extend at d 3, and became strip-shaped and integrated for about 80% at d 8. Passage survival rates were more than 90% for both cells, and after passage 2 the growth curve was like "S". Optical density was changed obviously when the cells were cultured for 3 - 5 d, but there were no significant difference of cell cycles between MSC and EPC, which G0-G1 was (93.32 ± 1.65)% and (93.05 ± 1.95)% respectively. Positive rates were (99.7 ± 1.12)%, (99.1 ± 2.33)%, (4.8 ± 0.38)%, (6.8 ± 0.49)% and (0.4 ± 0.08)% for CD90, CD44, CD14, CD45 and CD79a respectively. MSC were identified by induced differentiation into osteoblasts and adipocytes. Positive rates of the EPC, which were adhered for twice and passaged 2, were (82.1 ± 3.4)% for fluorescent staining of Dil-ac-LDL and FITC-UEA-I, and (74.2 ± 3.2)%, (64.7 ± 4.3)% and (43.5 ± 1.5)% for CD133, VEGFR2/KDR and CD34 respectively. It is concluded that high-purity MSC can be obtained with density gradient and differential adhesion method, and high-proliferation EPC can be cultured with EGM-2MV medium in cell plates enclosed with fibronectin, so they may become the optimal seed cells for tissue engineering study.
Animals ; Bone Marrow Cells ; cytology ; Cell Adhesion ; Cell Differentiation ; Cell Proliferation ; Cell Separation ; methods ; Cells, Cultured ; Endothelial Cells ; cytology ; Flow Cytometry ; Immunophenotyping ; Mesenchymal Stromal Cells ; cytology ; Rabbits ; Stem Cells ; cytology

OBJECTIVETo compare the diagnostic value between digital photography (DR) and multi-slice spiral CT (MSCT) in fracture and dislocation of foot and ankle.

METHODSFrom August 2010 to August 2012, the DR and MSCT data of 52 patients with fracture and dislocation of foot and ankle were compared according to results of surgery or discharge diagnosis. There were 37 males and 15 females, aged from 15 to 49 years old. Wilcoxon signed rank test was used for statistical analysis.

RESULTSThe results of 52 cases of MSCT were matched with the postoperative or discharge diagnosis. A total of 172 fractures were found on MSCT and 98 fractures were found on DR, the results had significant difference in detecting fracture (V=1 081, P<0.05); A total of 24 dislocations were found on MSCT and 16 dislocations were found on DR,the results also had significant difference in detecting dislocation (V=21, P<0.05). Fractures of 6 cases with DR diagnosis were corrected and located by MSCT.

CONCLUSIONMSCT is significantly better than DR in diagnosis of fracture and dislocation of foot and ankle. The examination of two parts should be performed in DR. MSCT and multi-planar reconstruction (MPR) examination should be further performed if DR results are unclear or do not match with clinical symptoms, missed diagnosis and misdiagnosis can be avoided.

Adolescent ; Adult ; Ankle Injuries ; diagnostic imaging ; Female ; Foot Injuries ; diagnostic imaging ; Fractures, Bone ; diagnostic imaging ; Humans ; Image Processing, Computer-Assisted ; methods ; Joint Dislocations ; diagnostic imaging ; Male ; Middle Aged ; Multidetector Computed Tomography ; methods ; Photography

A total of 12 cases with Achilles tendon rupture were repaired by modified Kessler's methods.The sutured tendons were then strengthened with Mitek anchor system with 2 anchors inserted into the calcaneus lateral and medial to insertion of Achilles tendon and the sutures passed through the repaired tendon using Bunnel methods.The healing of skin incision,time to weight bearing,range of motion of the ankles,calcaneal pain and re-ruptures were recorded.The results were evaluated according to Amer-Lindholm criteria.All the patients were followed up with mean 17 months (range from 14 to 25 months).There were no calcaneeal pain or re-rupture cases,neither deep nor superficial wound infection or skin necrosis cases.According to Arner-Lindholm criteria for curative result,the result was excellent in 4 cases and good in 8 cases.The Mitek anchor system can be used successfully to treat Achilles tendon rupture and decrease postoperative complications.Thus,the technique is an ideal option for Achilles tendon rupture repair.

Adult ; Female ; Follow-Up Studies ; Humans ; Male ; Minimally Invasive Surgical Procedures ; methods ; Recovery of Function ; Tibial Fractures ; pathology ; physiopathology ; surgery ; Young Adult