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Objective To compare the efficacy and safety of the long-term intermittent maintenance treatment with tacrolimus 0.03％ ointment versus traditional treatment in reducing relapses and prolonging the recurrence interval in children with moderate to severe atopic dermatitis (AD).Methods A two-phase randomized,open-labelled,controlled clinical trial was conducted from September 2012 to November 2013.In the first phase,a total of 171 children aged 2-15 years with moderate to severe AD were enrolled from 7 hospitals in China,and received conventional treatment with tacrolimus 0.03％ ointment twice a day for 2-6 weeks.At the end of the treatment,the patients who achieved an investigator's global assessment (IGA) score ≤ 2 (n =125) were randomly classified into 2 groups to receive the second-phase treatment:test group (n =62) receiving intermittent maintenance treatment with tacrolimus 0.03％ ointment twice a week (Monday and Thursday),and control group (n =63) receiving no treatment.If the patients in the 2 groups experienced relapse,they received conventional treatment with tacrolimus 0.03％ ointment twice a day.The overall observation period was 6 months.The primary endpoint was the time to the first relapse,which was defined as the number of days from the end of the first-phase treatment to the first relapse.The secondary endpoints included the number of relapses at the second-phase trial,the disease severity at the time of relapse,the duration of relapse,the pruritus score at the time of relapse,the total amount of tacrolimus ointment used,the total response rate at the second-phase trial,and the incidence of adverse events.Results A total of 125 children with AD were enrolled into the second-phase trial,and 121 of them completed the follow-up.Among the 121 patients,the recurrence rate was significantly lower in the test group (25/60,41.7％) than in the control group (46/61,75.4％;x2 =14.20,P ＜ 0.001).The time to the first relapse was significantly longer in the test group (46.9 ± 37.7 d) than in the control group (28.8 ± 32.3 d;Z =1 093.50,P =0.020).The total number of recurrence was 31 and 86 in the test group and control group respectively,and the mean number of recurrence in each patient was significantly lower in the test group (0.52 ± 0.68) than in the control group (1.41 ± 1.23,t =4.96,P ＜ 0.001).There were no significant differences between the two groups regarding disease severity during relapse (eczema area and severity index:Z =971.50,P =0.39),duration of relapse (Z =747.00,P =0.07),and pruritus score during relapse (Z =894.00,P =0.95).The therapeutic drug was tolerated well in all the children,and no tacrolimus-related serious adverse events occurred.Conclusion The intermittent maintenance treatment with tacrolimus 0.03％ ointment twice a week for 6 months can effectively and safely prevent and reduce relapses,and prolong the recurrence interval in children with moderate to severe AD.
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Drosophila dEAAT2, a member of the excitatory amino-acid transporter (EAAT) family, has been described as mediating the high-affinity transport of taurine, which is a free amino-acid abundant in both insects and mammals. However, the role of taurine and its transporter in hearing is not clear. Here, we report that dEAAT2 is required for the larval startle response to sound stimuli. dEAAT2 was found to be enriched in the distal region of chordotonal neurons where sound transduction occurs. The Ca imaging and electrophysiological results showed that disrupted dEAAT2 expression significantly reduced the response of chordotonal neurons to sound. More importantly, expressing dEAAT2 in the chordotonal neurons rescued these mutant phenotypes. Taken together, these findings indicate a critical role for Drosophila dEAAT2 in sound transduction by chordotonal neurons.
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Animals , Acoustic Stimulation , Action Potentials , Genetics , Animals, Genetically Modified , Auditory Pathways , Physiology , Calcium , Metabolism , Drosophila , Genetics , Drosophila Proteins , Genetics , Metabolism , Excitatory Amino Acid Transporter 2 , Genetics , Metabolism , Hearing , Genetics , Larva , Luminescent Proteins , Genetics , Metabolism , Mutation , Genetics , Nervous System , Cell Biology , Neurons , MetabolismABSTRACT
Objective To summarize the reason and nursing experience of one pulmonary embolism patient after total knee arthroplasty easily misdiagnosed coronary heart disease. Methods For the patient to implement risk assessment of venous thromboembolism and develop prevention plan in preoperation, then carry out anticoagulation prevention and physical prophylaxis after operation. Nurse observe the patient changes of clinical symptom and signs,focus on the complain of patient and the changes of laboratory examination results, implement the diagnosis process of pulmonary thromboembolism. Pulmonary thromboembolism patient was definitely diagnosed and got standardized treatment. Results Through the treatment and nursing, the patient finely discharged from hospital. Conclusions To develop the system of VTE risk assessment and implement prevention measures.Nurses need to distinguish the high risk pulmonary thromboembolism patient according to the clinical observation, it is better for the pulmonary thromboembolism patient to be early diagnosed and treated, meanwhile, to implement the effective nursing measures will contribute to the prognosis of pulmonary thromboembolism patient.
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Objective To explore the feasibility and safety of early ambulation in patients with acute deep ve-nous thrombosis. Methods The literatures about early ambulation for acute venous thrombosis were collected and the quality of the literature was evaluated by two investigators independently. Results Thirteen published studies were recruited for systematic review,including 10 RCTs and 3 CCTs. The meta-analysis showed that compared with bed rest,early ambulation did not increase the incidence of secondary pulmonary embolism in patients with acute DVT[early activity:22/1408;bed rest:34/1417;RR=0.62,95%CI(0.37,1.03),and the incidence of DVT progression [early activity:48/1523;bed rest:45/1525;RR=0.85,95%CI(0.58,1.24)]. There were no statistically significant differ-ences in mortality,swelling,and pain relief in acute DVT patients. Conclusion Early ambulation did not increase the incidence of thrombus progression and secondary pulmonary embolism in patients with acute DVT compared with bed rest. Besides,early ambulation cannot relieve symptoms of swelling and pain in DVT patients. However,it can relieve the acute pain of DVT patients with moderate to severe pain.
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Objective To investigate the prevalence of skin diseases in pre-school children aged 0-7 years in cities of China.Methods From November 2014 to April 2015,12 cities were chosen as survey spots,and pre-school children aged 0-7 years served as respondents.A population-based study was conducted,and 40 vaccination clinics and 80 kindergartens were selected by stratified random sampling.A questionnaire survey and dermatological examination were performed by trained dermatologists.Results A total of 20 033 pre-school children received questionnaires,whose age was 2.41 ± 1.82 years (range,0.08-6.83 years).Among these respondents,7 823 children were found to have skin diseases,with the total prevalence of skin diseases being 39.05％ (7 823/20 033).Additionally,the prevalence of skin diseases reported in the 12 cities from high to low was as follows:66.96％ (612/914,Dalian),56.73％ (2 310/4 072,Shanghai),55.49％ (556/1 002,Wuhan),49.18％ (390/793,Taiyuan),47.16％ (316/670,Chengdu),41.93 ％ (566/1 350,Nanjing),41.03％ (318/775,Chongqing),35.98％ (240/667,Hefei),33.87％ (677/1999,Shenzhen),31.37％ (554/1 766,Changsha),23.52％ (1 107/4 706,Beijing),13.42％ (177/1 319,Shenyang).Totally,40 kinds of skin diseases were investigated,and the 10 most common skin diseases were eczema/infantile eczema/atopic dermatitis (18.71％,3 749/20 033),ichthyosis vulgaris(6.25％,1 253/20 033),lichen pilaris (5.73％,1 148/20 033),diaper dermatitis (5.29％,1 059/20 033),papular urticaria(5.25％,1 052/20 033),hemangioma/vascular malformation (3.86％,774/20 033),pityriasis alba (3.45％,691/20 033),infectious skin diseases (2.59％,519/20 033),urticaria(1.71％,344/20 033)and contact dermatitis (0.5％,100/20 033).Conclusion The total prevalence of skin diseases among pre-school children in cities of China is 39.05％,and eczema/atopic dermatitis is the most common skin disease.
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Acute and chronic kidney injury are still lack of good treatments now.Although human renal histological structure is complex,it also can be regenerated by new renal tubular epithelial cells replacing injured cells.With the study deepening,it supports a new way for treating kidney injury with characteristics of proliferation and differentiation of stem cells.This article will discuss the features of some kinds of the adult stem cells in the kidney regeneration,and those functions in the pathological situation briefly.
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Objective To compare the consistency between interstitial fluid glucose and arterial blood glucose in septic shock patients with different tissue perfusion levels.Methods A prospective investigative study was conducted. Sixty-one septic shock patients with ages above 18 years old admitted to the Department of Critical Care Medicine of Peking Union Medical College Hospital, Chinese Academy of Medical Sciences from April 2013 to December 2013 were enrolled. The real-time continuous glucose monitoring system (RTCGMS) and arterial blood gas analyzer were used to measure the patients' interstitial fluid glucose and arterial blood glucose, and according to the criteria of International Organization for Standardization (ISO) and the median of relative absolute difference (Median RAD), the consistency between interstitial fluid glucose and arterial blood glucose was calculated. Based on the lactate (Lac) level and pulse oxygen perfusion index (PI), the septic shock patients were divided into groups with different degrees of tissue perfusion, the consistency between the interstitial fluid glucose and arterial blood glucose among septic shock patients with different degrees of tissue perfusion was compared by using Bootstrap re-sampling technique.Results Negative correlation existed between PI and Lac (r= -0.272,P 8 mmol/L, their consistency between interstitial fluid glucose and arterial blood glucose was better than that in those with Lac > 2-4 mmol/L, and the 95% credibility intervals (CI) of ISO standardized deviation value was 0.026-38.710 (P 0.7%-1.4%, the 95%CI of median RAD difference value was 0.002-0.076, and the 95%CI of ISO standardized deviation value was -27.000 to -0.583 (allP 3.0%, their consistency between interstitial fluid glucose and arterial glucose was better than that in those with PI ≤ 0.7%, PI > 0.7%-1.4% and PI > 1.4%-3.0%, and the 95%CI of ISO standardized deviation values were 3.322-28.302, 11.988-40.265 and 5.170-33.333 respectively (allP 8 mmol/L or PI ≤ 0.7%), the worse the tissue perfusion, the better the consistency between interstitial fluid glucose and arterial blood glucose; when septic shock patients were under normal local tissue perfusion (PI > 3.0%), the better the local tissue perfusion, the better the consistency between interstitial fluid glucose and arterial blood glucose.
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Objective To investigate the prevalence and progression process of atopic diseases in adolescents, and to assess their relationship with filaggrin(FLG)mutations. Methods Totally, 334 adolescents aged from 11 to 19 years in a middle school in shanghai were enrolled into this study. A clinical interview was carried out to determine the prevalence of atopic diseases (such as ichthyosis, atopic dermatitis (AD), asthma, rhinitis, etc)in these subjects. Peripheral blood samples were collected from 285 out of the 334 adolescents for screening for common FLG mutations, including 3321delA and K4671X. Five years later, these adolescents were followed up for reevaluation of clinical presentations of atopic diseases. Statistical analysis was carried out by the chi-square test with the SPSS 20.0 software. Results As the baseline survey showed, 19 (5.69%)of the 334 adolescents had AD, 14 (4.19%)had ichthyosis vulgaris, 36(10.78%)had allergic rhinitis, and 4(1.20%)had asthma. FLG mutations were observed in 24(8.42%) of the 285 adolescents. Five years later, 265 adoscents completed the follow-up, and 69 (20.66%)were lost to follow-up. Of the 265 adolescents reevaluated, 13(4.89%)had AD, 15(5.64%)had ichthyosis vulgaris, 27(10.15%)had allergic rhinitis, and 1 (0.38%)had asthma. By the time the second survey was performed, 6 out of the 19 patients initially diagnosed with AD had achieved complete regression, 13 had experienced a marked decrease in SCORing atopic dermatitis (SCORAD)score, and symptoms had disappeared in 9 of the 36 patients initially diagnosed with allergic rhinitis. The frequency of FLG mutations was 10.0%in patients with AD, 55.6%in those with ichthyosis, and 40.0%in those with both AD and ichthyosis, and the development of ichthyosis was associated with FLG mutations(P<0.001). Conclusions The frequency of common FLG mutations was 8.42%in these adolescents. FLG gene may be a semidominant gene associated with ichthyosis vulgaris, and multiple factors influence its expression.
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Objective To evaluate the efficacy and safety of tacrolimus 0.03％ ointment for the treatment of 2-year-old patients with moderate to severe AD.Methods An open-labeled,non-comparative,multi-center study was carried out,which included 59 2-year-old children with moderate to severe AD.All the patients were given topical tacrolimus 0.03％ ointment twice daily for 3 weeks.The evaluation of patients was scheduled at the baseline,1,2,and 3 weeks after the start of treatment.Clinical outcome parameters included the total response rate,eczema area and severity index score (EASI score),the percentage of body surface area (BSA％) affected,physician's global evaluation (PGE),children's dermatology life quality index (CDLQI),visual analog scale (VAS) pruritus score.Safety was assessed based on adverse events reported by patients or observed by the physicians.Results At the end of the treatment,the total response rate was 65.85％ with an EASI score of 4.18,and BSA％ of 16.41％.Of these patients,85.10％ achieved a satisfactory outcome,2.13％ achieved a complete cure,and all achieved an improvement,with no exacerbation observed.The 3-week treatment also resulted in a significant decrease in VAS pruritus score (from 6.80 to 3.21) and CDLQI (frown 7.06 to 2.91).Side effects mainly manifested as temporary burning sensation at the application site,and no severe adverse events associated with tacrolimus were observed.Conclusion Tacrolimus 0.03％ ointment seems safe and effective for the treatment of 2-year-old patients with moderate to severe AD.
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Objective To summary the clinical data of pediatric renal transplantation from multiple renal transplant centers in China,and analyze the factors influencing the therapeutic outcomes of pediatric renal transplantation.Methods From March 1986 to May 2010,the clinical data of 138 children who underwent renal transplantation in eight centers of renal transplantation in China were retrospectively analyzed.Results The one-year patient and graft survival rate was 99.3％ and 95.7％respectively.Acute rejection episodes occurred in 38 cases (27.5％),15 cases suffered delayed graft function (DGF),and graft functions were returned to normal in all recipients within one month.Moreover,other complications included transplant renal artery stenosis in 8 cases (5.8％),ureteral necrosis in 2 cases (1.4％),urinary fistula in 5 cases (3.6％),hypertension in 57 cases (41.3 ％),hyperlipidemia in 38 cases (27.5％),hirsutism in 32 cases (23.2％),drug-induced liver damage in 26 cases (18.8％),urinary tract infection in 25 cases (18.1％ ),gingival hyperplasia in 22 cases (15.9％),pulmonary infection in 21 cases (15.2％),bone marrow suppression in 12 patients (8.7％),herpes simplex in 10 cases (7.2％),and diabetes in 8 cases (5.8％).The body weight was increased by 4 to 13 kg and the body height was increased by 2 to 7 cm during the first year posttransplantation. Conclusion The careful perioperative management, rational use of immunosuppressive agents,strengthening the follow-up management of children and social support,and improving compliance were the key points to obtain good outcomes in pediatric renal transplantation.
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To address several hospital network issues, this paper discusses the overall plan, design and renovation of hospital's Local Area Network, making full use of existing network facilities. The techniques, such as Physical Separation of Internal and External Network, HSRP, OSPF, All-Routers Networking Model, etc., create features of extensibility, manageability, high safety, stability and so on to the overall network, and provide a reliable network platform to the function of the information systems.
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Health Facility Size , Hospital Design and Construction , Hospital Information Systems , Local Area NetworksABSTRACT
Objective To investigate the expression of μ-opioid system in the epidermis of patients with atopic dermatitis and its role in the pathogenesis of atopic dermatitis. Methods Thirty-two mice were equally divided into 4 groups, negative control group, pre-treatment group, naloxone group, and physiological saline group. Ovalbumin was used to sensitize mice in pretreatment group, naloxone group, and physiological saline group for 7 weeks, then, mice in naloxone group and physiological saline group were treated with intracutaneous naloxone or physiological saline solution for 1 week, respectively. Mice were killed in negative control group and pre-treatment group at the end of sensitization, and in naloxone group and physiological saline group after 1-week injection with naloxone or physiological saline, skin tissues were obtained from the back of killed mice and subjected to histological examination with HE staining and quantitative fluorescent PCR for the detection of mRNA expression of μ-opioid receptor (MOR) and its ligand (β-endorphin) in epidermis. The atopic dermatitis severity index of lesions and histological changes were assessed before and after the treatment. Results In comparison with the negative control mice, the epidermal expression level of MOR was signifieantly decreased (t = 2.549, P ＜ 0.05 ) in pre-treatment group, but increased in naloxone group and showed no statistical difference from the negative control group (t = 0.671, P ＞ 0.05). No significant difference was observed in the epidermal β-endorphin mRNA expression between negative control group and pre-treatment group or naloxone group (both P ＞ 0.05 ). The improvement of lesions could be visualized after treatment with naloxone (t = 8.338, P ＜ 0.01 ), which was concordant with the histological changes in naloxone group. Conchusions As an antagonist of MOR, naloxone can restore the expression of epidermal MOR in mice model for atopic dermatitis, and shows a certain efficacy in the treatment of atopic dermatitis, which proves that μ-opioid system is somewhat associated with the pathogenesis of atopic dermatitis.
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Objective To investigate the effect of cyclosporine blood level at first year after kidney transplantation on patients with a survival time over 10 years. Methods 380 patients with functional allograft, a survival time over 10 years and long-term administration of cyclosporine A (CsA) were studied, and received CsA-based treatments. According to the blood CsA level at the first year after kidney transplantation, patients were divided into five groups: group 1, blood CsA level was above 0. 208 μmol/L (1 μmol/L = 1201.9 μg/L), group 2, blood CsA level between 0. 166-0. 208μmol/L; group 3, blood CsA blood level between 0. 125-0. 166 μmol/L; group 4, blood CsA blood level between 0. 083-0. 125 μmol/L; group 5, blood CsA level less than 0. 083 μmol/L. Systolic blood pressure (SBP), diastolic blood pressure (DBP), serum creatinine(SCr), uric acid (UA), cholesterol (CH), triglyceride (TG), alanine aminotransferase (ALT), direct bilirubin (DBil) and total bilibubin (TBil), albumin (Alb), hemoglobin (Hb), count of white blood cells and positive rate of proteinuria in 5 groups at the 1st, 5th and 10th year after kidney transplantation were analyzed. Results At the 5th year SBP in groups 1 and 2 was higher than in groups 3, 4 and 5. UA level in group 5 was lower than other groups, and Alb level in group 5 was higher than other 4 groups. Proteinuria positive rate in groups 4 and group was lower than other groups. At the 10th year after kidney transplantation,indexes among 5 groups had no statistically significant difference, except for SBP, DBP, DBil and CH in some groups. There was also no significant difference in SCr level among 5 groups at the 5th or 10th year after transplantation. Conclusion Blood CsA levels at the first year after kidney transplantation has no significant effect on long-term allograft function. But higher level of CsA (＞0. 166μmol/L) at the first year maybe predict high rate of hypertension, high blood UA and proteinuria at the 5th and 10th year after transplantation.
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Objective To investigate the clinical features and prognosis of pulmonary infection at different stages after renal transplantation.Methods Medical records of 61 patients with pulmonary infection after renal transplantation from January 2003 to July 2008 in our hospital were reviewed in this retrospective study. According to stages of infection onset, we divided all patients into two groups, early onset group (43/61, 70.5%, ≤12 months after transplantation) and late onset group (18/61, 29.5%, >12 months after transplantation). Clinical manifestations and prognosis were compared between the two groups.Results In the early onset group, the radiographic manifestation suggested diffuse interstitial changes of bilateral lungs. Combination of anti-infective therapy and early mechanical ventilation was preferred. While in the late onset group, unilateral pulmonary lesions were seen in most cases. More patients showed cardiac and gastrointestinal complications in this group, the mortality of which was much higher. Conclusions Pulmonary infection is a major complication of renal transplantation. The etiology, clinical characteristics and prognosis of infection varies with the stage after transplantation. Effective preventive and therapeutic measures should be applied more vigorously in patients with pulmonary infection, especially early onset ones.
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To report a case of 16-month-old boy with anhidrotic ectodermal dysplasia with immunodeficiency who experienced disseminated herpes simplex infection. From 2 months of age, the patient experienced multiple pyrexial episodes of undetermined origin, which responded well to anti-inflammatory agents after undressed. Abnormal sweat with dry skin was noted; therefore, the skin biopsy of right axilla was performed at 7 months of age, and suggested a diagnosis of anhidrotic ectodermal dysplasia. Since 6 months of age, he developed recurrent upper respiratory infections and 2 episodes of pneumonia. Twenty days before, several glossal erosions occurred in the patient, supervened by painful and erosive eruptions and numerous blisters around the mouth and both hands with hyperpyrexia. Four days before, the patient was transferred to the department owing to skin lesion exacerbation. Cutaneous examination showed multiple crested or ulcerated plaques distributed eriorificially (mouth and nasal cavity) on the face. Several irregular, demarcated ulcers were scattered on the buttocks, scrotum and lower limbs, surrounded by grouped and umbilicated vesicles arising on erythema. Both hands were swelling, crusting and painful. Dentition was abnormal, and the patient had only 2 upper conical incisors. Routine investigation revealed that white cell count and C-reactive protein extremely elevated. Immunologic profile showed an abnormal distribution of lymphocyte subsets with decreased CD3+ T cells, CD8+ T cells and NK cells. Serum IgM level was slightly low. IgM antibodies to herpes simplex virus type 1 (HSV-1) were detected by serological testing. Based on the above-mentioned features, a diagnosis of anhidrotic ectodermal dysplasia with immunodeficiency and disseminated herpes simplex infection was confirmed. The patient was resolved favourahly after intravenous ganciclovir and antibiotics for 3 weeks without relapse of skin lesions.
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Objective To explore the influence of renal allograft donor's and recipient’s SNP of recipient cytokine and cytokine receptor on the infection after renal transplantation and to provide some useful information for preventing and managing infection.Methods 129 cases of cadaveric renal allograft recipients were divided into infection group and no infection group. The distribution of 21 polymorphisms in cytokines and cytokine receptors gene were compared between two groups by oligonucleotide array. Previous positive gene polymorphisms were compared between infection group and no infection group. With the help of SPSS 11.5 software, association was assessed using Krusakal Wallis test where appropriate.Results The frequency of gene distribution was significantly different between the infection group and the no infection group as follows: the genotype IL-6R (-183G/A, GG), IL-10 (-824C/T, -597C/A), TNF-? (-308GG, G/A), and the allele IL-10R1 (1112G/A), IL-6R (-183G/A), IL-4R(1902A/G), TNF-? (-308G/A), TGF-?_1 (+869T/C) respectively.Conclusion The susceptibility of infection after renal transplantation may be predicted by the SNP of recipient cytokine and cytokine receptors such as these genotypes IL-6R(-183GG), IL-10(-824CT, -597CA), TNF-?(-308GG), and the allele IL-4R(1902A).
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Objective To investigate the association of prognosis with clinical features,tumor imaging,and pathological grading and staging in small renal cell carcinoma(SRCC). Methods The clinical data of 76 cases of SRCC (no more than 3 cm in diameter) were analyzed retrospectively.According to the clinical symptoms,they were divided into two groups,symptomatic (hematuria and lumbago) group (n=17,accounting for 22.4%) and asymptomatic group (n=59,77.6%).All the 76 cases underwent CT scan,with the diagnosis rate of 94.7%;69 cases underwent B-ultrasound examination with the diagnosis rate of 84.1%. Results All the 76 cases underwent radical nephrectomy through oblique incision in the lumbus.The excised tumors were pathologically confirmed to be clear cell carcinoma.The patients were followed up for 32 to 87 months(mean,62.7 months).The 1-,3-,and 5-year cancer-free survival rates of the symptomatic and asymptomatic groups were 100% and 53.3%,33.3% and 100%,90.6% and 77.4%,respectively.There were statistically significant differences between the two groups in the 3- and 5-year cancer-free survival rates (P
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%85, entered into the high sensitive group (30 cases), and the patients with negative PRA into control group. The fresh blood was collected, and PBMCs was collected by Ficoll method. Total RNA were extracted by one-step technique and purified. The total RNA in high sensitive group were labeled with Cy5-dUTP, and control group with Cy3-dUTP, then the cDNA probe was labeled by reverse transcript way. High throughout gene chip ((16 920)) was hybrided and scanned. Cy3/Cy5 image files were copied. Then fluorescent signal value of gene expressing was obtained, and differential expression genes were sifted. RESULTS: Among the differential expression 877 genes, there were up-regulated 88 genes and down- regulated 789 genes. The mechanism of high sensitive status in human immune system was analyzed by some function-known genes which coded NY-REN-55 antigen, CD100, defender against cell death 1, breast cancer resistance protein, transcriptional repressor, death domain containing protein, cyclophilin-33A, rapamycin-binding protein, heat shock protein 40, interferon-alpha receptor and STAT inhibitor-2. CONCLUSIONS: The effect of PBMCs in high sensitive status of human immune system in patients with uremia may be associated with recognition of auto-antigen,signal conduction, aggregation and differentiation of B lymphocyte, anti-apoptosis and resistance of immunosuppressant. [
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Objective:To explore the role of peripheral blood lymphocyte (PBL) of the renal transplant recipients during the acute rejection phase by gene chips.Methods:The 8 patients with acute rejection (AR) after renal transplantation were collected peripheral blood before operation (as control samples) and renal biopsy (as experimental samples).By Ficoll method,PBL was collected.Total RNA were extracted by one-step technique and purified.The total RNA were labeled with Cy5-dUTP (experimental samples) or Cy3-dUTP (control samples),then to label the cDNA probe by reverse transcript way.The gene chip (419 genes) was hybridized and scanned.Then fluorescent signal value of gene expressing was obtained,and differential expression genes were sifted.Results:There were differential expression 49 immunological genes in peripheral blood lymphocyte (PBL) of the renal transplant recipients during the acute rejection phase,including up-regulated 25 and down-regulated 24.Conclusion:Peripheral blood lymphocyte was involved in various stages during the acute rejection,and immunosuppressants influenced on these stages in various degrees. [