1.Effect of different time aerobic exercises on osseous composition in aging rats
Cailian RUAN ; Yajun BAI ; Yunlei UU
Chinese Journal of Tissue Engineering Research 2009;13(28):5499-5504
BACKGROUND: Studies show that proper exercise has the effect of anti-aging, increasing bone mass accumulation and reducing bone mass loss. OBJECTIVE: To investigate the effect of aerobic exercises on osseous composition In aging rats. DESIGN, TIME AND SETTING: A randomized control animal experiment was completed in the Animal Experiment Laboratory of Xi'an Sports Institute from April to June in 2007. MATERIALS: A total of 64 clean male SD rats weaned for 2 months were randomly divided into a normal control group, a non-modeling exercise group, an aging model group and a modeling exercise group, with 16 ones in each group. Every 8 rats of each group were sacrificed at the 6th and 9th week respectively.exercise for 6 and 9 weeks. MAIN OUTCOME MEASURES: At the end of week 6 and 9, rats in each group were detected regarding to the following measures: serum alkaline phosphatase, bone gla protein, serum propeptide of type] procollagen, serum total calcium, serum inorganic phosphorus, serum magnesium, urinary calcium, urinary inorganic phosphorus, urinary magnesium, urinary hydroxylysine glycoside. Bone trabecula changes in femoral bone tissue were observed with light microscope. RESULTS: Compared with the normal control group, the aging model group got a decrease at the following indexes at both week 6 and week 9, namely, serum alkaline phosphatase, serum propeptide of type Ⅰ procellagen, serum total calcium, serum magnesium, urinary calcium, urinary inorganic phosphorus, urinary hydroxyproline. While in the non-modeling exercise group and the modeling exercise group, these above-mentioned indexes increased. Compared with the normal control group, the aging model group got an increase at the following indexes at both week 6 and week 9, namely, serum osteocalcin, inorganic phosphorus, adnary magnesium, urinary hydroxylysine glycoside. While in the non-modeling exercise group and the modeling exercise group, these above-mentioned indexes decreased. In Addition, exercise of 9 weeks led to a better recovery result than that of 6 weeks. The detection under light microscope showed an obvious few bone trabeculas in the aging model group and an increase of bone trabeculas per unit volume in the non-modeling exercise group and the modeling exercise group. CONCLUSION: Aerobic exercise has a great effect on the morphosis of femoral bone osseous composition in aging rats, and it can delay osteoporosis.
2.Influence of tranilast on expression of OPN and interstitial ED1+ macrophages infiltration in rats with chronic cyclosporine A nephrotoxicity
Chinese Journal of Practical Internal Medicine 2006;0(20):-
Objective To evaluate the effect of tranilast on chronic cyclosporin A(CsA)nephrotoxicity rats and the possible mechanisms of protective effect of it.Methods Rats were on low salt diet and CsA was administered by gastric gavage at a dose of 20 mg/(kg?d)for 28 days,and tranilast was gave to these rats in a dose of 400 mg/(kg?d).The renal function and renal morphology were observed at1,2 and 4 weeks after administration of tranilast.Results CsA induced the corruption of normal condition and weight lost were markedly delayed after administration of tranilast.On histopathology tranilast attenuated tubular cells vacuolations as well as interstitial damage including interstitial ED1+ macrophages infiltration and focal interstitial fibrosis.Meanwhile,tranilast down-regulated the protein of OPN in kidney.Conclusion Tranilast can attenuate the structural changes of kidney in chronic CsA nephrotoxicity rats.Decreased CsA-related ED1+ macrophages,OPN up-regulation expression in the kidney may be related to mechanisms of protective effect of tranilast in the treatment of CsA induced chronic nephrotoxicity.
3.Expression of cancer stem cell markers, CD133, CD44 and OCT-4, in small cell lung cancer and their clinical significances
Yajun JI ; Ling BAI ; Xin WANG ; Zhenghong LIU
Cancer Research and Clinic 2015;(7):458-460,464
Objective To determine the expression of cancer stem cell markers, CD133, CD44 and OCT-4, in small cell lung cancer cell line NCI-H82 and confirm the specific markers. Methods NCI-H82 cells were cultured, and the expressions of markers (CD133, CD44 and OCT-4) were detected by immunofluorescence staining. The immunohistochemistry was performed to detect the expressions of CD133, CD44 and OCT-4 in 79 tissues with small cell lung cancer. Results In NCI-H82 cells, the florescence was positive in CD133 and CD44 and negative in OCT-4. In the tissues, the expression of CD133 and CD 44 was related with tumor size, lymph node metastasis and clinical stage (P< 0.05), while OCT-4 was negative expression. Conclusion CD133 and CD44 might be the cancer stem cell markers of small cell lung cancer, which maybe have clinical significance on diagnosis and treatment.
4.The Differential Diagnostic Value of Dynamic Contrast-Enhanced MRI in Adrenal Adenomas and Nonadenomas with the Washout Rate of Enhancement
Wenhong WANG ; Renju BAI ; Haoran SUN ; Yajun LI ; Xifu WANG
Journal of Practical Radiology 2001;0(08):-
Objective To explore the value of MRI dynamic contrast-enhanced in differentiating adrenal adenomas from nonadenomas with washout rate of enhancement and the increased SI ratio. Methods Thirty-six patients with 41 adrenal masses enrolled into this study. All these masses underwent conventional T 1WI and T 2WI sequence first, and then FMPSPGR sequence through the center of each mass. Precontrast and dynamic contrast-enhanced FMPSPGR scans were preformed after administration of contrast material of Gd-DTPA intravenously. The signal intensity(SI) of masses was measured on the screen by electronic cursor. The washout rate of enhancement and increased SI ratio were compared between adenomas and nonadenomas. The differentiating adrenal adenomas from nonadenomas were carried out based on combination of the washout rate and the increased SI ratio, meanwhile, the sensitivity and specificity of the diagnosis of adenomas were evaluated well.Results The sensitivity and specificity of the diagnosis of adenomas were 74% and 73%,and accuracy was 73% when the washout ratio was used as a indicator at 5 min. The sensitivity and specificity of the diagnosis of adenomas would be improved markedly when the combination of the washout ratio and the increased SI ratio was used as a indicator.The sensitivity and specificity of the diagnosis of adenomas were 95%, 91% respectively,and accuracy was 93%. Conclusion Using MRI dynamic contrast-enhanced based on combination of washout rate of enhancement and the increased SI ratio,the diagnosis and differentiating diagnosis of adrenal adenoma and nonadenoma can be improved.
5.Siraitia grosvenori and rehmannia glutinosa promote the hematopoietic stem cells and progenitor cells proliferation and function
Lin BAI ; Guiying SHI ; Yajun YANG ; Lianfeng ZHANG
Chinese Journal of Comparative Medicine 2014;(3):50-54
Objective To investigate the influence of Siraitia Grosvenori and Rehmannia Glutinosa on the Hematopoietic stem cells proliferation and function .Methods Cells from the peripheral blood , spleen and bone marrow of mice were stained with indicated antibodies , and analyzed by flow cytometry .Mice were divided 3 groups:control group, Siraitia Grosvenori treatment group and Rehmannia Glutinosa treatment group .After 4.5Gy IR treatment, mice divided 4 groups: control group, 4.5Gy IR treatment and feed with normal food, 4.5Gy IR treatment and feed with Siraitia Grosvenori and 4.5Gy IR treatment and feed with Rehmannia Glutinosa for 1 month.Results Mice fed with Siraitia Grosvenori and Rehmannia Glutinosa decreased the percentage of B cells and increased the percentage of M cell .For HSCs, the number of HSCs was increased , especially the number of LT-HSCs.After 4.5Gy IR treatment, mice fed with Siraitia Grosvenori and Rehmannia Glutinosa increase the number of HSCs , and increased the percentage of M cells . Conclusion Siraitia Grosvenori and Rehmannia Glutinosa promote the hematopoietic stem cells and progenitor cells proliferation and function and recover the damage that caused by IR treatment .
6.Early abnormalities of kidneys in patients with primary hypertension by 3.0 T functional magnetic resonance imaging.
Ling YANG ; Shuang ZHAO ; Yajun HU ; Yin ZHOU ; Jiao BAI ; Rongbo LIU
Journal of Biomedical Engineering 2014;31(5):1111-1120
This study aims to detect early changes of kidney in patients with primary hypertension by 3.0 T functional magnetic resonance imaging (fMRI). 26 patients with primary hypertension (hypertension group) and 33 healthy volunteers (control group) underwent conventional and functional magnetic resonance scans, which included blood oxygen level-dependent (BOLD) MRI, diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI). We measured renal cortical thickness (CT), parenchymal thickness (PT), and functional values of renal cortex and medulla including R2* value, apparent diffusion coefficient (ADC) value and fractional anisotropy (FA) value in each group, and then calculated the cortical/parenchymal thickness ratio (CPR). Compared with those in the control group, CT and CPR in hypertension group were larger (P < 0.01), cortical and medullar R2* values increased (P < 0.01) whereas medullar FA values decreased (P < 0.05). It could be well concluded that noninvasive 3.0 T functional MRI would have important clinical significance in identifying early abnormalities of kidney in hypertension patients.
Anisotropy
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Diffusion Magnetic Resonance Imaging
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Diffusion Tensor Imaging
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Essential Hypertension
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Humans
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Hypertension
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Kidney
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pathology
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Magnetic Resonance Imaging
7.Influencing factors for treatment compliance of patients with multidrug-resistant tuberculosis
Yanhong LI ; Jianggui WU ; Guizhi ZHOU ; Jinhong XU ; Zhiling HU ; Yajun LUO ; Liqiong BAI
Chinese Journal of Infection Control 2015;(9):593-596
Objective To investigate the influencing factors for post-discharge treatment compliance of patients with multidrug-resistant tuberculosis (MDR-TB).Methods MDR-TB patients who were hospitalized in a tubercu-losis hospital between November 2011 and January 2013 were chosen,post-discharge follow-up was conducted regu-larly through telephone call.Medicine-taking and re-examination of patients was inquired,factors influencing pa-tients’treatment compliance were analyzed.Results 299 patients were included in the study,the total treatment compliance rate was 81 .94% (n=245);249(83.28%)patients regularly took medicine,50(16.72%)didn’t regu-larly take medicine;254 (84.95%)were re-examined on time,45 (15.05%)were not re-examined on time;37 (12.37%)discontinued treatment,260 (86.96%)continuously treated till the survey deadline.Univariate analysis revealed that treatment compliance (including regular medication rate,timely re-examination rate,interrupted treat-ment rate,and total compliance rate)was significantly different among MDR-TB patients of different ages,education levels,treatment time,and with or without adverse reactions(all P <0.05 ).Logistic regression analysis revealed that treatment compliance of MDR-TB patients was negatively correlated with treatment time(β=-1 .47,Wald χ2=24.28,P <0.05)and adverse reactions(β=-2.02,Waldχ2 =24.24,P <0.05 ),while positively correlated with education levels(β=0.79,Wald χ2 =6.50,p <0.05 ).Conclusion Prolonged treatment time and adverse reactions can reduce the treatment compliance of MDR-TB patients,the higher education levels of MDR-TB patients have, the better treatment compliance they implement.
8.Multiple primary carcinomas including esophageal basaloid squamous cell carcinoma and gastric adenocarcinoma
Hongxia WANG ; Hao CHEN ; Yucheng LIU ; Ling BAI ; Congying YANG ; Rong YAN ; Yajun JIANG
Chinese Journal of Digestive Surgery 2013;12(10):746-749
Synchronous multiple primary carcinomas refers to 2 or more than 2 kinds of different primary malignant tumors develop synchronously or in 6 months.The incidence of synchronous multiple primary carcinoma is low.A patient with esophageal basaloid squamous cell carcinoma (BSCC) and gastric adenocarcinoma was admitted to the First People's Hospital of Lianyungang in October 2011.The main symptom of this patient was dysphagia,and multiple lesions were found in esophagus,cardia and stomach fundus by gastroscopy respectively.On computed tomography image,eminence lesion in esophageal midpiece and wall thickening from esophagus-cardia to stomach fundus were displayed and were both enhanced slightly by enhancement scanning.The esophageal and cardia tumors were resected via left thoracic approach,and postoperative pathological examination revealed esophageal BSCC and moderately differentiated adenocarcinoma of cardia respectively.Comedo necrosis and red basal membrane material were seen under light microscope.The expressions of cytokeratin 5/6 and P63 were positive,the expression of cytokeratin L was weak positive and the expressions of synaptophysin,chromogranin A and CD117 were negative.The patient suffered from pleural effusion and multiple liver metastases after 4 months follow-up and died of liver metastases in May 2012.Multiple primary carcinomas including esophageal BSCC and gastric adenocarcinoma are rarely seen in clinical practice.Their diagnosis and differential diagnosis mainly depend on histological morphology and immunohistochemical method.Surgical resection combined with postoperative radiotherapy and chemotherapy is selectable,but the prognosis is poor.
9.IL-33 transgenic mice increase the myeloid differentiation in hematopoietic stem cells
Lin BAI ; Guiying SHI ; Shan GAO ; Yajun YANG ; Kun GAO ; Lianfeng ZHANG
Chinese Journal of Comparative Medicine 2014;(3):39-44
Objective To study the influence of IL-33 on the Hematopoietic stem cells and progenitor cells . Methods Cells from the peripheral blood , spleen, thymus and bone marrow were stained with indicated antibodies and analyzed by flow cytometry . The LT-HSCs were sorted and culture using in vitro clonogenic assay . Results The percentage of B cells and T cells was decreased and the percentage of M cells was increased in the peripheral blood from IL -33 transgenic mice .Compared with the wildtype mice , the number of HSCs , MPPs and CLP was decreased;meanwhile the number of CMP and GMP was increased in the bone marrow from IL-33 transgenic mice .An in vitro clonogenic assay showed that LT-HSCs increased the ability to self-renew from IL-33 transgenic mice .And the percentage of S-G2-M stage hematopoietic stem cell was increased from IL-33 transgenic mice .Conclusion IL-33 increase the myeloid differentiation in hematopoietic stem cells .
10.Clinical Feature Analysis of 525 Cases of Patients with Ulcerative Colitis
Lu ZHANG ; Hong SHEN ; Bai YE ; Yajun LIU ; Lei ZHU ; Peiqing GU
World Science and Technology-Modernization of Traditional Chinese Medicine 2018;20(4):574-578
Objective: To conduct retrospective analysis of clinical features of patients with ulcerative colitis in JiangsuProvince Hospital of Traditional Chinese Medicine (TCM) . Methods: Ulcerative colitis medical records in jiangsuprovince hospital of TCM were selected and used to retrospectively analyze the feature such as gender, age, course of thedisease, clinical type, stage, severity, and pathological parts. Results: The study include 290 cases of male and 235 casesof female with the ratio of 1.2:1. Peak incidence was between 20 to 60 years old. Dietary factor was the most commoncause, followed by fatigue, environment, medicine and emotional factors. There were 28 (5.33%) patients at remissionstage, and 497 (94.67%) patients at active stage. In patients at active stage, there were 78 (15.69%) patients newlydiagnosed, and 419 (84.31%) patients with chronic recurrent type. There 92 (18.51%) rectum type patients, 156 (31.39%) left half colon type patients and 249 (50.10%) extensive colon type patients. There were 275 (55.33%) mild patients, 149 (29.98%) moderate patients and 73 (14.69%) severe patients. The main symptoms were bloody purulent stool, diarrheaand abdominal pain. There were 375 (71.43%) patients with bloody purulent stool, and symptom disappearance rate was89.07% after treatment. There were 335 (63.81%) patients with diarrhea, and symptom disappearance rate was 71.64%after treatment. There were 319 (60.76%) patients with abdominal pain, and symptom disappearance rate was 85.89%after treatment. There were 3 cases of complications. Drug therapy was mainly based on integrated Chinese and westernmedicine (86.29%) . For Chinese medicine treatment, there were 453 patients (87.45%) with oral Chinese medicine, 401 patients (77.41%) with Chinese medicine enema, and 10 patients (1.93%) with foot bath. For western medicine treatment, there were 392 patients (75.68%) treated with oral amino salicylate drugs, 100 patients (19.31%) with anal used aminosalicylate drugs, 88 patients (16.99%) with glucocorticoid, 18 patients (3.47%) with immunosuppressive agent and 441 patients (85.14%) with microecological preparation. Conclusion: The types of ulcerative colitis patients in our hospitalwere mainly chronic recurrent type at active stage with mild to moderate and extensive colon type. The treatment wasmainly based on integrated Chinese and western medicine, with significant improvement in symptoms of bloody purulentstool, diarrhea and abdominal pain. 99.61% patients were discharged with a better condition