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With the maturation of proteomics technologies in recent years, proteomics has made significant achievements in early detection of major diseases, disease classification, drug target discovery, and other fields. To explore the important role of proteomics, especially proteomics-based cutting-edge lifeomics technologies, in promoting the development of precision laboratory medicine and to discuss the opportunities and challenges faced during the clinical translation of innovative outcomes, the National Center for Protein Sciences-Beijing invited renowned experts and scholars in laboratory medicine, lifeomics, and precision medicine. The discussions revolved around the collaborative development of laboratory medicine and lifeomics, the future trends of new technologies in clinical laboratory testing, the innovation and development of lifeomics in laboratory medicine, the translational application of proteomics technologies in laboratory medicine, and the opportunities and challenges in the industrialization of proteomics achievements. All participants agreed that proteomics provides new directions and opportunities for precision diagnosis and treatment of diseases. However, close collaboration between academia, hospitals and industry is required. Additionally, challenges such as clinical applicability of equipment, standardization of detection methods and data, cost and quality control, talent cultivation, and the industrialization pathway need to be addressed.
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Objective A serum proteomic approach was used to explore the targets of action of Peitu Qingxin Granules(composed of Rhizoma Atractylodis Macrocephalae,Forsythiae Fructus,Imperatae Rhizoma,Pseudostellariae Radix,etc.)in the treatment of atopic dermatitis.Methods Five patients with atopic dermatitis were selected and treated with Peitu Qingxin Granules for 12 weeks,and five healthy volunteers were used as controls.The clinical core evaluation indexes of atopic dermatitis patients after treatment,including Eczema Area and Severity Index/Scoring Atopic Dermatitis(EASI/SCORAD),Pruritus Score,Patient-Oriented Eczema Measure(POEM),and quality of life index,were assessed.Serum samples were examined using data-independent acquisition-mass spectrometry(DIA-MS)technology,and serum differential proteins between atopic dermatitis patients and healthy people,as well as serum differential proteins in atopic dermatitis patients before and after treatment with Peitu Qingxin Granules were screened according to P<0.05 and Fold Change>1.2.GO function enrichment analysis and KEGG pathway enrichment analysis were performed on the differential proteins.Results(1)Compared with the pre-treatment period,the clinical core evaluation indexes of patients with atopic dermatitis,including the EASI/SCORAD,Pruritus Score,POEM,and quality-of-life index,were significantly improved after treatment,and the differences were all statistically significant(P<0.05,P<0.01).(2)A total of 28 differential proteins were analyzed in the healthy control group and atopic dermatitis group,of which 12 proteins expressions were increased and 16 proteins were decreased,including ALAD(δ-aminolevulinic acid dehydrogenase),LTA4H(leukotriene A-4 hydrolase),CA1(carbonic anhydrase 1),F11(coagulation factor XI),and LCP1(lymphocyte cytoplasmic protein 1),etc..The main signaling pathways involved are PI3K-AKT signaling pathway,lipids and atherosclerosis,ECM-receptor interaction,platelet activation,NF-κB signaling pathway,and neutrophil extracellular trap formation.(3)A total of 12 different proteins were analyzed in atopic dermatitis patients before and after treatment with Peitu Qingxin Granules,of which 8 proteins were increased and 4 proteins were decreased,including ALAD,FGA(fibrinogen α-chain),IGHV3-64D,and IGHV3-38.They were mainly involved in signaling pathways such as lipids and atherosclerosis,complement pathway,Staphylococcus aureus infection,NF-κB signaling pathway,fluid shear stress and atherosclerosis.(4)The expressions of three protein targets including ALAD,FGA and IGHV3-64D,were significantly down-regulated in patients with atopic dermatitis and significantly up-regulated after treatment with Peitu Qingxin Granules.Conclusion The differentially expressed proteins ALAD,FGA and IGHV3-64D may be the action targets of Peitu Qingxin Granules in the treatment of atopic dermatitis,which lays the foundation for further experimental validation.
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Objective:To compare and analyze the medication patterns for adult and children diarrhea from Erxu Mingyi Lei’an. Methods:The cases and formula prescriptions on adult and children diarrhea were recorded from Erxu Mingyi Lei ' an. The data was analyzed and compared between adult and children by the Ancient and Modern Medical Records Cloud Platform (V 2.1), including frequency statistics, association rule analysis, drug pair analysis, efficacy statistics, drug taste tropism statistics, and cluster analysis. Results:A total of 456 prescriptions of adult diarrhea were abstracted, involving 360 drugs, and the top 5 drugs were Poria, Atractylodis Macrocephalae Rhizoma, Citri Reticulatae Pericarpium, Paeoniae Radix Alba and Aucklandiae Radix. The Atractylodis Macrocephalae Rhizoma paired with Poria, Citri Reticulatae Pericarpium with Poria, Citri Reticulatae Pericarpium with Atractylodis Macrocephalae Rhizoma, and Paeoniae Radix Alba with Atractylodis Macrocephalae Rhizoma were commonly used in the treatment of adult diarrhea. Citri Reticulatae Pericarpium, Atractylodis Macrocephalae Rhizoma and Poria were the core drugs for adult diarrhea. There were 111 prescriptions for pediatric diarrhea, involving 180 drugs, and the top 5 were Atractylodis Macrocephalae Rhizoma, Poria, Paeoniae Radix Alba, Glycyrrhizae Radix et Rhizoma, and Nelumbinis Folium. The Poria paired with Atractylodis Macrocephalae Rhizoma, Atractylodis Macrocephalae Rhizoma with Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle, and Aconiti Lateralis Radix Praeparata with Atractylodis Macrocephalae Rhizoma were commonly used in the treatment of diarrhea in children. The Atractylodis Macrocephalae Rhizoma, Poria and Aconiti Lateralis Radix Praeparata were the core drugs for children diarrhea. The main charateristics of drugswas warm type, sweet taste, and the main meridian belongs to spleen, followed by stomach and lung meridians. The use of carbided drugs in adults were significantly higher than children. Conclusions:The Erxu Mingyi Lei’an forcused the treatment of invigorating the spleen qi, where the adult formular often matches the drugs of drying dampness and invigorating the spleen, aromatizing dampness, slight infiltration and eliminating dampness, while the children formular often matches the drugs of warming the Yang and warming the Yang. Many kinds of carbonaceous drugs can be used in the treatment of adult diarrhea, but they should be used with caution in the treatment of children.
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Objective@#To explore the differences of thromboinflammatory response between healthy pregnancy and preeclampsia (PE) and provide potential strategies for diagnosis and prevention of PE. @*Methods@#The antibody microarray was prepared to detect plasma protein expression profile of non-pregnant women, healthy pregnant women and preeclampsia patients. The differentially expressed proteins were identified and analyzed. @*Results@#The levels of 37 proteins were significantly different between non-pregnant and healthy pregnant women, among which 16 proteins were increased, such as disintegrin, metalloproteinase domain-containing protein 12 and C-C motif chemokine 2, while 21 proteins were decreased, such as GM-CSF and apolipoprotein F. The levels of 27 proteins were significantly different between healthy pregnant women and preeclampsia patients, among which 16 proteins were increased, such as GM-CSF and VEGFR2 and 11 proteins were decreased, such as tumor necrosis factor-related apoptosis-inducing ligand and interferon Omega 1. Further analysis found that PE patients group presented more complicated changes compared with healthy pregnant women. PE group included more significantly increased proteins which involved in inflammation and immune responses and elevated levels of acute phase reaction, while the levels of more anti-inflammation cytokines decreased significantly. In the plasma of PE patients more proteins participating thrombosis and complement reaction increased significantly. Also, renin level was significantly dropped and VEGFR2 was elevated. @*Conclusion@#More serious inflammatory response, hypercoagulable status and imbalance of angiogenesis and anti-angiogenesis may exist in PE, which should be helpful for further improving potential strategies in diagnosis and prevention of PE.
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Domestic and overseas studies onthe prominent eartreatment were reviewed and analyzed.Current progress of clinical therapy for prominent ear was summarized.The uniform clinical diagnosis and therapy of prominent earhave not been determined, due to its complicated and various therapeutic methods and unclear etiology. Reported therapies mainly include: (1)surgical therapy, which attains satisfactory therapeutic effect by adopting improved approaches, i. e. the combination of operations or the innovative methods based on Mustarde′s, Sterstrom′s and Converse′s surgical methods. (2)Non-surgical therapy, including ear splinting or molding, and laser-assisted cartilage reshaping(LACR). The non-surgical therapyisa hot research field, and is going to bepopularizedin the future.Research of etiology and non-surgical treatments may be helpful to provide abetter therapy strategy for prominent ear.
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Objective@#To explore the effect of the tumbling concha-cartilage flap for correction of mild constricted ear.@*Methods@#From January 2015 to January 2017, 6 constricted ears of 6 cases were corrected using this procedure. All patients were from Plastic Surgery Hospital, Chinese Academy of Medical Science. They were four male and two female patients, age from 3 to 28 years old, with average age of 14 years. Through anterior and posterior skin incisions, a rectangular or T-shaped cartilage flap was elevated from the concha and tumbled backward. After passing through the postauricular skin, the flap′s tip was fixed to the lidded helix or scapha. The recoiling force of the flap′s conchal side enabled the lidded portion to be in a normal, erect, anatomic position. This method also increased the vertical height of the ear and created a normally shaped scapha.@*Results@#The follow-up time was 6-12 months. Six constricted ears were corrected using this procedure, and maintained natural auricular features.@*Conclusions@#The tumbling concha-cartilage flap is a reliable and effective method for the correction of constricted ear.
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Objective@#To explore the effect of using free costal cartilage combined with helix stretching to correct Tanzer IIB type constricted ear deformity.@*Methods@#From January 2015 to January 2017, free costal cartilage combined with helix stretching method was performed in 8 ears of 6 patients. All patients had Tanzer IIB type constricted ear deformity. Rotation flap and subcutaneous helix tunnel were designed and prepared. Thereafter, the helix cartilage was stretched. The costal cartilage was carved and placed in the helix subcutaneous tunnel. The flap was then rotated to cover the wound.@*Results@#All patients were recovered without significant complication. No flap necrosis or cartilage exposure was observed. Helix and antihelix were obvious. The corrected ears were similar to the healthy side, after 3 to 6 months follow up.@*Conclusions@#The combination of free costal cartilage and helix stretching is an effective method to correct Tanzer ⅡB type constricted ear deformity.
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Objective@#To investigate the effect of auricle deformity corrector in non-surgical treatment of congenital auricular deformity.@*Methods@#The auricular deformity correctors were applied for non-surgical treatment of congenital auricular deformities. The patients were divided into three groups according to the treatment starting age (<1 month old, 1-3 months old, 3-6 months old), followed up for every month respectively after treatment. According to the improvement of auricle morphology, the treatment results were divided into four levels (e, g, f, p) and the effective rate (e+ g)% was calculated.@*Results@#From January 2014 to December 2016, there were 140 ears of congenital malformations in children aged less than 6 months who were treated and followed up. Among them, 33 ears had helical rim abnormalities, 29 with cup-shaped ears, 12 with prominent ears, 4 with Stahl′s ears, and 62 with cryptotia ears. The therapeutic efficacies (<1 month old, 1-3 months old, 3-6 months) of these ear malformations were: cryptotia ear (100%, 100%, 87.5%), helical rim abnormality (100%, 90.47%, 66.67 %), prominent ear (-, 100%, 50%), cup ear (100%, 78.57%, 53.33%), Stahl′s ear (-, 100%, 33.33%). Follow-up more than 6 months after treatment, up to a year and a half, no recurrence was found.@*Conclusions@#The auricular deformity corrector can be used as an effective approach for achieving natural outcomes and correcting cosmetic abnormalities. Rate of satisfaction is dependent on types of deformity, the neonatal age in which treatment started and also parents′ compliance to treatment methods and principals. The method is noninvasive, easy to wear and works well. Early proper treatment can avoid future operations and save social medical resources.
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Objective@#To explore the curative effect of ultra-delicate split-thickness skin graft in continuity with full-thickness skin flap combined with Z-plasty for correction of cryptotia.@*Methods@#Four cases (six ears) were corrected by ultra-delicate split-thickness skin graft in continuity with full-thickness skin flap combined with Z-plasty method from 2016 to 2017. Following ear release, the flap is rotated into the defect and donor site covered by a razor-thin graft raised in continuity with the flap, the posterior flap was advanced and sutured with Z-plasty.@*Results@#All corrected auricles four cases (six ears) were followed up from 3 months to 1 year and abtained satisfactory and stable appearance.@*Conclusions@#The shape of auricle is natural and satisfactory after operation. The method is simple and no skin grafting is needed. The adhesion of the hidden muscles and cartilages were sufficiently released.
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Objective@#To investigate the modification of the classic techniques of total auricle reconstruction with skin expansion, and its clinical application.@*Methods@#We performed three-dimensional measurement of the normal auricle and the expanded flap on 150 microtia patients. According to the data, we carried out total auricle reconstruction using extended postauricle expanded flap techniques for 82 patients of the group. Firstly, a 50 ml kidney-shaped expander was inserted subcutaneously in the mastoid region. Approximately 65 ml saline was injected in about 30 days, and expansion was kept without injection for another 30 days. In the second stage, we removed the expander and dissected the scalp 4-5 cm around the expanded skin, to make a composite flap consisted of expanded skin and extend scalp. Then we used the flap to encapsulate the three-dimensional rib cartilage framework to accomplish total auricle reconstruction.@*Results@#The blood supply and venous drainage of the flap was good. No obvious postoperative flap swelling was observed. Only 2 cases of helix skin necrosis happened in 48 hours after operation. Small area of skin defect was treated by debridement and suture, while larger area of skin defect was repaired with postauricular fascia flap and free skin graft. Postoperative follow-up period was 4-15 months, about 6.7 months in average. Bilateral ear size and position were similar with clear structures and shapes. Helix seemed more slim, auriculocephalic sulcus was obvious, auriculocephalic angle was similar to the other side. There was no color abberration between the front and back side of reconstructed ear. Scars of retroauricular hairline incision and costal cartilage harvesting incision were not obvious.@*Conclusions@#The novel surgical techniques is reasonable and simple without fascia flap or skin graft, which is worthy of application by more plastic surgeons.
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The digital X-ray imaging device was disinfected with trichloro-isocyanuric acid solution.The samples were taken with cotton swab pouring method before and 1,2,3 and 6 h after disinfection and the bacteriological examination was performed.Before disinfection the colony count of samples was all above the standard (> 10 cfu/cm2) with bacilli and gram-positive cocci predominantly.The highest count was detected in the X-ray photographic bed (58 cfu/cm2) and the lowest was in the exposure button(19 cfu/cm2).After disinfection the colony count in radiation suits still exceeded the standard,the colony count in diagnosis bed 2 h after disinfection,that in all parts of device 3 h after disinfection was off levels.The results indicate that the chlorine disinfectants can only achieve short-term effect in disinfection of digital X-ray imaging device.
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Objective To evaluate the influence of highly active antiretroviral therapy ( HAART) on bone mineral density ( BMD ) of human immunodeficiency virus ( HIV) infected patients and correlating clinical factors. Methods The clinical data from 2007 to 2008 were analyzed, including 50 patients treated with HAART (named treated group) ,12 HIV-infected antiretroviral-naive patients (named untreated group) and 20 healthy people (named control group).Lumbar, femoral neck, femur, femoral greater trochanter and whole body BMD were measured by dual energy X-ray absorptiometry.The data were respectively analyzed.Results There were 19 (38.0% ) patients with osteopenia and 1(2.0% ) patient with osteoporosis in the treated group.There were 6(50.0% ) patients with osteopenia and 2 (16.7% ) patient with osteoporosis in the untreated group.There were 5(25.0% ) patients with osteopenia, no one with osteoporosis in the control group.The prevalence of osteopenia/osteoporosis was statistically higher in the untreated group than that in the control group (P = 0.02).The BMD of femur, femoral neck and greater trochanter [(0.97±0.14) , (0.91 ±0.13 ) , (0.76 ±0.12) g/cm2] in the HIV-infected group (including the treated and untreated group) were significantly lower than that in the control group [(1.04±.12) , (0.98±.14) , (0.84±0.11) g/cm2 ,P <0.05].There were no significantly differences in the BMD between the untreated group and the treated group.In the treated group, osteopenia/osteoporosis correlated with body weight less than 60 kg (r=0.074,P =0.004) and the viral load before HAART(r=5.103,P =0.021).Conclusions The prevalence of osteopenia and osteoporosis in antiretroviral-naive HIV-infected patients is higher.The BMD of HIV-infected patients are reduced compared with the healthy people.The BMD is similar among HIVinfected patients irrespective of antiretroviral treatment Body weight less than 60 kg and the viral load before HAART are the risk factors of osteopenia/osteoporosis for the HIV-infected antiretroviral patients.
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In this experiment, a novel biotin-avidin conjugation probe was synthesized and employed in the detection of reverse-phase protein microarray. Firstly, the proportion of the biotin-avidin conjugation probe was optimized. Then the rat IgG and goat anti-rat IgG system was served as a model to optimize the fabrication conditions of reverse-phase protein microarray, including the non-specific absorption of streptavidin-Cy3 molecules, spotting buffer as well as protein activities. At last, the biotin-avidin conjugation probe was applied to the detection of the reverse-phase protein microarray. The results show that the protein microarray prepared by using BSA spotting buffer could prevent non-specific absorptions of fluorescent molecules and improve the sensitivity, effectively. In addition, compared with traditional biotin-avidin system, the detection limit could be improved four times using the biotin-avidin conjugation probe. In conclusion, the biotin-avidin conjugation probe has its merits of easy synthesis, low price and could be further conjugated with other signal amplification techniques, which is promising to be used in the detection of protein microarray.
Subject(s)
Avidin , Chemistry , Biotin , Chemistry , DNA Probes , Immunoglobulin G , Allergy and Immunology , Protein Array Analysis , MethodsABSTRACT
Objective To investigate the relationship of expression of cyclooxygenase-2(COX-2) and vascular endothelial growth factor(VEGF) with the growth pattern,malignant degree,metastasis and prognosis of gastrointestinal stromal tumor(GIST).Methods The expression of COX-2 and VEGF was examined with immunohistochemistry from paraffin-embedded tissue sections of 54 patients with GIST,and special attention was given to analyze the relationship between COX-2、VEGF expressions and clinicopathologic factors of the neoplasm.Results The expression of COX-2 and VEGF was significantly higher in malignant GIST than in benign and potentially malignant GIST(P
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Objective:To study the biting force of upper premolar and molar in the patients with unilateral cleft lip and palate(UCLP).Method:25 health people and 22 cases (13 male and 9 female with pemanent teeth) of UCLP without tempromandibular joint dysfuction were selected in the subject.Their biting force of upper premolar and molar in intercaspid position was tested by MBF 1 device,meanwhile,their mastictory perfomance and contact area of upper premolar and molar were checked.All of the results were managed by computer with SPSS 7.5 statistics software.Results:①Biting force of upper premolar and molar of male was higher than that of female in health people,but there was no sexual difference in UCLP.② Biting force in the group of UCLP was lower than that in the control (P
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Objectives:To evaluate the clinical significance of MMP-2,MMP-9 expression in gastrointestinal stromal tumor.Methods:54 of GIST were studied for MMP-2,MMP-9 by immunohistochemical staining,and the relationship of MMP-2,MMP-9 with each pathological factor were analyzed.Results:The positive expression of MMP-2,MMP-9 was 85.2%(46/54) ,83.3%(43/54) respectively.The expression of MMP-2,MMP-9 increased significantly according to the malignant increasing(P