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Clinical post competence and medical ethics literacy are the key qualities that applied medical talents should have. The synergy of medical education is an effective way to deepen the reform of competence-oriented medical education. Under the background of synergy of medical education and considering the orientation of training applied medical talents in our college, we explore a progressive path of "three early education", which means early exposure to specialties, early exposure to practice, and early exposure to clinical practice. Meanwhile, we strengthen the cultivation of medical students' medical ethics literacy throughout the whole process of "three early education", laying a solid foundation for medical students before they enter the stage of clinical practice training. Practice shows that the progressive "three early education" mode and the cultivation of medical ethics literacy throughout the whole process can effectively improve medical students' clinical post competence.
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Objective:To evaluate the application of three-dimensional (3D) imaging device to colonoscopy.Methods:A total of 60 patients who underwent painless colonoscopy in Beijing Friendship Hospital, Capital Medical University from November to December, 2019 were enrolled and divided into 2 groups according to random code. Each patient underwent colonoscopy twice, while 2D colonoscopy was used for cecal intubation. Thirty patients were assigned to the experimental group (primary withdrawal used 3D colonoscopy, and secondary withdrawal used 2D colonoscopy), and 30 others to the control group (primary withdrawal used 2D colonoscopy, and secondary withdrawal used 3D colonoscopy). The detection of polyps, the withdrawal time, operating experience, image quality and complication were evaluated in the two groups.Results:The polyp detection rate at the first colonoscopy in the experimental group was 77.3% (17/22), which was higher than 43.5% (10/23) in the control group ( χ2=5.351, P=0.021). Ten operators in the experimental group had dizziness, while the operators in the control group had no dizziness ( P=0.001). There were no significant differences between the two groups in the polyp diameter [0.50 (0.70) cm VS 0.30 (0.20) cm, U=57.000, P=0.170], withdrawal time (4.6±1.5 min VS 5.2±1.9 min, t=-1.189, P=0.239) or image quality (27 cases with 3 points in the identification of lesion nature, and 28 cases with 3 points in the identification of duct both in the two groups, P=1.000) at the first colonoscopy. No complication occurred in either group. Conclusion:Application of 3D imaging device is feasible for colonoscopic polyp detection, and it can be used in clinical practice.
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Objective:To investigate the clinicopathological features of missed synchronous multiple early gastric cancer (SMEGC).Methods:Clinical and pathological data of 10 missed SMEGC patients in Beijing Friendship Hospital collected from January 2015 to December 2019 were reviewed for the clinicopathological and endoscopic features.Results:Ten missed SMEGC patients were all over 60 years old, and 6 of them were males. Six patients had family history of tumor and 6 had comorbidity (hypertension, diabetes, dyslipidemia, cardiovascular or cerebrovascular diseases). In terms of endoscopic and pathological manifestations, missed lesions of 6 cases were not smaller than the initial lesions, and more than half of the missed lesions had the same vertical location in the stomach (6/10), infiltration depth (8/10), histological classification (9/10), atrophic (8/10) and intestinal metaplasia (8/10) as the initial lesions.Conclusion:Physicians should be aware of the possibility of missed lesions during the first endoscopic treatment and the follow-up, especially at the same vertical location of the initial lesions in elderly males with family history of tumor and comorbidity.
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Objective:To investigate the application of cromolyn sodium combined with diclofenac sodium eye drops in allergic conjunctivitis (AC) and its effect on tear film function, interleukin-10 (IL-10), interleukin-17 (IL-17) and immunoglobulin E(IgE).Methods:From April 2018 to May 2020, 78 patients with AC collected in Liaoning Armed Police Crops Hospital were divided into control group and observation group according to the random number table method (39 cases in each group). The control group was given cromolyn sodium eye drops, and the observation group was given cromolyn sodium combined with diclofenac sodium eye drops. The efficacy, clinical symptoms, changes of signs, tear film function [tear film rupture time (BUT), Schirmer I test (SIt)], tear inflammation indicators [interleukin-4 (IL-4), tumor necrosis factor-α (TNF-α), IL-10, IL-17], tear allergy mediators [eosinophil cationic protein (ECP), hyaluronic acid (HA), IgE] and safety.Results:The total effective rate of observation group was 100.00%, which was higher than that of control group (84.62%), with statistically significant difference ( P<0.05). After treatment, the scores of eye itching, tearing, photophobia, eye secretion, conjunctival hyperemia, conjunctival edema and blepharoconjunctival papillary follicular hyperplasia in the two groups were significantly lower than those before treatment, and the observation group was lower than the control group, with statistically significant difference (all P<0.05). The BUT in the observation group was higher than that in the control group after treatment, with statistically significant difference ( P<0.05). After treatment, the tear levels of IL-4, TNF-α, IL-10 and IL-17 in the observation group were lower than those in the control group, with statistically significant difference (all P<0.05). After treatment, the tear ECP, HA and IgE level in the observation group were lower than those in the control group, with statistically significant difference (all P<0.05). There was no significant difference in the incidence of adverse reactions between the two groups ( P>0.05). Conclusions:Cromolyn sodium combined with diclofenac sodium eye drops is effective in the treatment of AC, which can effectively improve the clinical symptoms and signs, promote stable tear film function, alleviate local metamorphosis and inflammation, and has good safety.
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Objective:To analyze the risk factors and characteristics of nonsyndromic clef lip and palate living at high altitude, providing evidence for preventing cleft lip and palate.Methods:The clinical data of 109 Tibetan patients with nonsyndromic cleft lip and palate who received treatment in People's Hospital of Ganzi Tibetan Autonomous Prefecture between August 2016 and August 2020 were retrospectively analyzed.Results:The 109 patients with cleft lip and palate were aged 4 months to 48 years. The ratio of male to female patients was 1.42∶1. The ratio of male to female patients with simple cleft lip was 1.40∶1. The ratio of male to female patients with cleft lip and palate was 1.71∶1. The ratio of male to female patients with simple cleft palate was 1.3∶1. The mothers of all patients did not undergo prenatal examination and did not take folic acid during pregnancy. Eight patients (7.3%) had a family genetic history of cleft lip and palate. Two patients (1.8%) had consanguineous marriage within three generations. Seven patients (6.4%) took drugs in the first three months of pregnancy. One patient (0.9%) had malnutrition during pregnancy. Among 65 patients (59.1%) had simple cleft lip, 48 patients (73.8%) had incomplete cleft lip. Among 25 patients (22.9%) had simple cleft palate, 14 patients (56.0%) had incomplete cleft palate. Nineteen patients (17.2%) had cleft lip and palate. The number of patients with unilateral cleft lip with or without cleft palate was greater than that of patients with bilateral cleft lip with or without cleft palate. The number of patients with left cleft lip with or without cleft palate was greater than that of patients with right cleft lip with or without cleft palate. The ratio of the number of patients with unilateral cleft lip to the number of patients with bilateral cleft lip was 12∶1. The ratio of the number of patients with left cleft lip to the number of patients with right cleft lip was 1.9∶1. The ratio of the number of patients with unilateral cleft lip and palate to the number of patients with bilateral cleft lip and palate was 5.3∶1. The ratio of the number of patients with left cleft lip and palate to the number of patients with right cleft lip and palate was 2.8∶1. Twelve patients (63.2%) had complete cleft palate.Conclusion:Popularizing knowledge of pregnancy health care and strengthening pre-pregnancy and during-pregnancy examination can reduce the incidence of cleft lip and palate.
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Objective:To investigate the application value of multi-slice spiral CT angiography in the clinical diagnosis of aortic dissection.Methods:The clinical data of 78 patients with aortic dissection diagnosed by digital subtraction angiography and treated between January 2015 and December 2019 in Putuo District People's Hospital of Zhoushan and Zhoushan Hospital were retrospectively analyzed. All patients underwent multi-slice spiral CT angiography and digital subtraction angiography. The type of aortic dissection, the number of aortic lacunas, the distance between the lacuna and the left subclavian artery, the involved branches, the percentage of artery wall calcification, and arterial dissection thrombosis determined by multi-slice spiral CT angiography and digital subtraction angiography were compared.Results:All 78 patients were diagnosed with aortic dissection by digital subtraction angiography, and 75 (96.2%) were diagnosed with aortic dissection by multi-slice spiral CT angiography. The same type of aortic dissection was detected by multi-slice spiral CT angiography and digital subtraction angiography, but three patients were misdiagnosed with pericarditis by multi-slice spiral CT angiography. There were no significant differences in the number of aortic lacunas and the distance between the lacuna and the left subclavian artery between the two methods ( t = 1.02, 0.57, both P > 0.05). The involved branches [61.3% (46/78),] the percentage of artery wall calcification [26.7% (20/78)], and the percentage of arterial dissection thrombosis [78.7% (59/78)] determined by multi-slice spiral CT angiography were significantly higher than 43.6% (34/75), 12.8% (10/75), and 62.8% (49/75) respectively determined by digital subtraction angiography ( χ2 = 4.83, 4.65, 4.62, all P < 0.05). Conclusion:Multi-slice spiral CT angiography exhibits a similar capacity to identify aortic dissection to digital subtraction angiography. It can accurately determine the number and location of aortic lacunas, display the calcification and thrombosis of vascular wall, and is minimally invasive and simply operated. Therefore, multi-slice spiral CT angiography is of high application value in the clinical diagnosis and preoperative evaluation of aortic dissection.
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Objective:To explore the relationship between the type of mutation and clinical features, prognosis, and clinical characteristics of chronic granulomatous disease (CGD) caused by compound heterozygous mutations in the NCF2 gene in children. Methods:The clinical data of 1 case of neonatal CGD caused by compound heterozygous mutations of NCF2 gene at Tianjin Children′s Hospital in August 2019 was analyzed, and domestic and international literatures were searched to summarize the clinical characteristics, gene mutation type and prognosis of CGD caused by NCF2 mutation. Results:The diagnosis of CGD was confirmed by the presence of compound heterozygous mutations c. 196_197insA (p.Arg66Glnfs23X) and c. 1180T>G (p.Tyr394Asp) in the NCF2 gene, accompanied with the clinical manifestations of fever, cough, multiple clumps and nodules in the chest CT at 25 days after birth, and the neutrophil respiratory burst test stimulation index(SI) 23.This new mutation was not reported in the Human Genetic Mutation Database.The child had a residual portion of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity and was followed up until the age of 9 months with an antifungal drug without recurrent infection.A total of 101 cases of CGD patients with NCF2 gene mutation were reported in domestic and international databases.Totally, 33 cases had SI results, with 22 cases below 3, 11 cases above 3, and 8 cases of missense mutations. Conclusions:c. 196_197insA and c. 1180T>G are new mutations in NCF2 gene that can lead to CGD.CGD patients containing missense mutations in the NCF2 gene may have more residual NADPH oxidase activity.
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Objective:To evaluate the efficacy and safety of using platelet-rich plasma (PRP) eyedrops for the treatment of moderate to severe dry eye disease (DED).Methods:A total of 395 patients (790 eyes) with moderate to severe DED diagnosed and treated in the Armed Police Liaoning Corps Hospital and the PLA 967 Hospital from March 2018 to October 2019 were collected. Random number table method was used to divide into autologous PRP treatment group (196 cases, 392 eyes) treated with autologous PRP and control group (199 cases, 398 eyes) treated with artificial tears. The changes of subjective symptoms of DED, Schirmer test (ST), corneal fluorescein staining (CFS) and Ocular Surface Disease Index (OSDI) before and after treatment were observed in both groups.Results:After 1 course of treatment, the ST values of both groups increased, which was statistically significant compared with before treatment ( P<0.05). After treatment, the OSDI and CFS scores of the two groups were reduced. The difference in OSDI and CFS scores of the PRP treatment group before and after treatment was statistically significant ( P<0.05), and there was no statistically significant difference in the control group before and after treatment ( P>0.05). After treatment, the OSDI and CFS scores of the PRP treatment group were lower than those of the control group [(16.8 ± 18.7) scores vs. (43.2 ± 14.5) scores, (0.21 ± 0.53) scores vs. (1.62 ± 0.69) scores], the differences were statistically significant ( P<0.05). After one course of treatment, the total effective rate of the autologous PRP treatment group was higher than that of the control group [80.1% (157/196) vs. 51.76% (103/196)], the difference was statistically significant ( P<0.05). Conclusions:Autologous PRP can treat patients with moderate-to-severe autologous PRP treatment group, which can greatly improve patients' eye discomfort and other symptoms.
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Objective:To investigate the clinical, endoscopic and pathological characteristics of early Barrett esophageal adenocarcinoma (BEA) and to evaluate the treatment efficacy of endoscopic submucosal dissection (ESD).Methods:Data of 13 patients who were diagnosed as early BEA and treated by ESD in Beijing Friendship Hospital from November 2015 to June 2018 were retrospectively analyzed, including clinical data, endoscopic manifestations and pathological information.Results:Out of 13 patients, 10 were male. One had underlying long-segment Barrett esophagus (LSBE), 6 had short-segment Barrett esophagus (SSBE), and 6 had super short-segment Barrett esophagus (less than 1 cm). Two arose from circumferential Barrett esophageal (BE) and 11 from tongue-like BE. Ten lesions were located on the right anterior side wall (12-2 o′clock) of the esophagogastric junction (EGJ), and 12 lesions were superficial type (0-Ⅱ). ESD was successfully conducted in all the patients without any complication. The en bloc and curative resection rate was 100% (13/13) and 92% (12/13), respectively. Pathology examination found 9 well-differentiated adenocarcinoma and 10 intramucosal cancer. No recurrence was detected in 11 patients during follow-up of 3.3-29.3 months.Conclusion:Early BEA tends to occur in elderly male, and mostly originated from non-LSBE and tongue-like BE. Most lesions are superficial type and located on the right anterior side wall of EGJ. In pathology, most lesions are well-differentiated adenocarcinoma and limited to the mucosa. ESD is a safe and efficient treatment for BEA.
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Objective To evaluate the clinical value of magnetic resonance imaging T2WI texture analysis in the diagnosis of prostate cancer.Methods A total of 78 patients with pathological-confirmed prostate cancer and prostatic hyperplasia from Jan.2016 to Dec.2018 in our hospital were retrospectively collected.MaZda software was used to analyze 300 texture feature parameters of each lesion on T2WI images,and Weka software was used to select the most discriminative texture feature parameters.The differences of texture features between the two groups and diagnostic efficacy were compared by independent sample t test,Mann-Whitney U test and ROC.Results There were 7 texture feature parameters of the most discriminative significance between the two groups:AngScMom,Contrast,Entropy,Horzl_GLevNonU,45dgr_RLNonUni,WavEnLL_s-1 and WavEnHL_s-3,respectively.There were significant differences in 7 texture feature parameters between prostate cancer group and prostate hyperplasia group (P＜0.05).The AUC of each texture feature was between 0.78 and 0.91,the accuracy was between 79.6％ and 92.1％,the sensitivity was between 70.8％ and 91.9％,and the specificity was between 72.2％ and 92.5％,respectively.Conclusions The texture features parameters of T2WI images are different in the diagnosis of prostate cancer and prostatic hyperplasia.As an objective and quantitative analysis method,texture features analysis can be used in the differential diagnosis of prostate cancer and prostatic hyperplasia.
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Objective To analyze the possible influencing factors of postoperative bleeding after endoscopic submucosal dissection and endoscopic mucosal resection ( ESD/EMR) for early gastric cancer. Methods Clinical data of patients receiving ESD/EMR for the diagnosis of early gastric cancer at the Endoscopy Center of Beijing Friendship Hospital from January 2013 to May 2018, including demographic information ( age, gender and history ) , endoscopic lesion characteristics ( tumor size, location and morphology) and postoperative pathological features ( differentiated types and invasive depth) were collected to analyze the effects of these factors on bleeding after ESD/EMR. Results A total of 195 patients with early gastric cancer were included in the study and 9 cases ( 4. 6％) had postoperative bleeding. The medication history of clopidogrel and main lesion sizes were statistically different between postoperative bleeding group and non-bleeding group ( P=0. 018 and P=0. 034 ) . Multivariate analysis showed a history of clopidogrel ( OR=10. 223, 95％CI:1. 143-91. 468, P= 0. 038 ) , multiple lesions ( OR= 6. 412, 95％CI:1. 123-36. 616, P=0. 037) and lesions sizes of larger than 2 cm ( OR=6. 718, 95％CI:1. 130-39. 935, P=0. 036) were possible risk factors for postoperative bleeding. Survival analysis showed of higher postoperative bleeding risks in patients with the history of clopidogrel ( P<0. 001) and lesions sizes of more than 2 cm ( P=0. 022) . Conclusion More attention should be paid to the risk of ESD/EMR postoperative bleeding in early gastric cancer patients with medication history of clopidogrel and multiple large lesions.
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Depression belongs to the category of "stagnation syndrome" in traditional Chinese medicine. There are many clinical types of depression in which liver stagnation and spleen deficiency syndrome is one of the main types. As a classic prescription for liver-soothing and spleen-strengthening, Xiaoyaosan has a definite curative effect in the treatment of depression due to liver stagnation and spleen deficiency. With fewer adverse reactions, a high safety and good patient compliance, it can be combined with western medicine to reduce the recurrence rate and adverse reactions of western medicine, and has become the focus and hotspot of research in recent years. Although many experts and scholars have conducted a lot of research on the pharmacological mechanism of Xiaoyaosan in the treatment of depression due to liver stagnation and spleen deficiency, its mechanism is still unclear. In addition, there are many types of animal models for depression due to liver stagnation and spleen deficiency but only a few systematic reports on Xiaoyaosan in treating depression of liver stagnation and spleen deficiency. Therefore, based on two classic models of chronic mild unpredictable stress depression model (CUMS) and chronic restraint stress depression model (CIS), a review was conducted on the pharmacological mechanisms of Xiaoyaosan in the treatment of depression due to liver stagnation and spleen deficiency by regulating neurotransmitter concentration, affecting the expression of neurotrophic factor, regulating hytothalamus-pitutary-adrenal(HPA)axis imbalance, improving intestinal micro-ecology and gastrointestinal function, regulating endogenous metabolite levels and immune inflammatory factor levels and improving synaptic structure and plasticity, so as to provide potential guidelines for basis study and clinical application of Xiaoyaosan in the treatment of depression due to liver stagnation and spleen deficiency.
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Objective@#To investigate the risk factors of operation time of endoscopic submucosal dissection (ESD) for superficial gastric lesions.@*Methods@#Clinicopathologic data of 193 patients (195 lesions) diagnosed with early gastric cancer preoperatively who received ESD in Beijing Friendship Hospital from January 2015 to December 2017 were retrospectively collected, including basic information (age, gender, body mass index, comorbidities), lesion characteristics (size, location, morphology), the operators′ experience of ESD, operation time, and postoperative pathology, etc. Univariate analysis was performed to find the risk factors of ESD operation time, and logistic regression analysis was performed on the factors with statistical differences in univariate analysis to find the independent risk factors of ESD operation time over 120 min.@*Results@#The mean age of the patients was 63.34±9.11 years. The median time of ESD operation was 120.00 (95.00, 165.00) min and the median size of the lesions was 1.50 (1.00, 2.38) cm. Early gastric cancer was diagnosed by postoperative pathology in 164 lesions (84.10%), among which 162 lesions (98.78%) achieved en bloc resection, and 148 lesions (90.24%) achieved curative resection. The gender (P=0.018), location(P<0.001) and size (r=0.209, P=0.007) were risk factors of the operation time by univariate analysis, while age, body mass index, American Society of Anesthesiologists (ASA) grade, roughness of lesion surface, presence or absence of white moss and ulcer, depth of lesion invasion, operative period, gross shape of lesion, degree of differentiation, and experience of operator were not associated with operation time (all P>0.05). Multivariate analysis showed that the lesion located in cardia/fundus of stomach (OR=5.656, 95%CI: 2.291-13.964, P<0.001), body of stomach (OR=2.667, 95%CI: 1.048-6.785, P=0.040) and >2 cm in size (OR=2.761, 95%CI: 1.229-6.205, P=0.014) were independent risk factors for the operation time longer than 120 min.@*Conclusion@#Lesions located in the cardia/fundus, body of stomach and >2 cm in size are independent risk factors for long operation time of ESD.
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Objective@#To compare the efficacy and safety of endoscopic submucosal dissection(ESD) and surgery in the treatment of early gastric cancer.@*Methods@#Clinical data of patients with early gastric cancer who received ESD or surgery in Beijing Friendship Hospital from June 2012 to May 2018 were collected. Complete resection rate, complication incidence, hospital stay and expenses between the two groups were compared.@*Results@#There was no significant difference between two groups in complete resection rate[95.7%(245/256) VS 99.0%(97/98), P=0.191], or the complication incidence [5.9%(15/256) VS 8.2%(8/98), P=0.471]. Hospital stay was shorter in the ESD group than that in the surgery group(11.5±3.7 d VS 19.4±13.0 d, P=0.000). Expenses were less in the ESD group than those in the surgery group (27 383.1±10 143.0 yuan VS 78 004.3±79 027.8 yuan, P=0.000).@*Conclusion@#The efficacy and safety of ESD are comparable with surgery in the treatment of early gastric cancer, but ESD is superior to surgery in hospital stay and expenses.
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This study was designed to explore the antidepressant mechanism of Bupleuri radix through establishing the active components-targets network and protein interactions network and analyzing the functions and pathways of targets. The main active ingredients of Bupleuri radix were obtained by TCMSP, literature study and the results of our own work. Based on the DRAR-CPI, GeneCards and OMIM were used to predict and screen the active components of Bupleuri radix. The Cytoscape software was used to construct the active components-targets network of Bupleuri radix. The protein interactions network was constructed using the String database and Cytoscape software. The relation of the main active ingredients and targets were validated by Systems Dock Web Site. The GO and KEGG pathways involved in the targets were analyzed by DAVID. Using DisGeNET database to attribute the type of targets. The results showed that 15 active components and 50 targets of Bupleuri radix were involved. The network results showed that the process of metabolism, regulation and response to stress were mainly involved, by adjusting the PI3K-AKT, MAPK, Rap1, Ras, FoxO, neurotrophin and other signaling pathways to play its antidepressant effect. This study reflects the characteristics of multicomponents-multi-targets and multi-pathways of Bupleuri radix, which provides new ideas and clues for further research on the mechanism of anti-depressive effects of Bupleuri radix.
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<p><b>OBJECTIVE</b>To assess the effect of long-term high-fat diet on the expressions of insulin receptor substrates in the hippocampus and spatial learning and memory ability of obese rats.</p><p><b>METHODS</b>A total of 100 4-week-old male SD rats were randomly divided into two groups and fed with common diet (CD group, n=40) or high-fat diet (HFD group, n=60) for 16 weeks. At 4, 8, 12, 16 and 20 weeks, 8 rats were randomly selected from each group for testing their spatial learning and memory function using Morris water maze. After the tests, the rats were sacrificed for measurement of the metabolic parameters and detection of the expressions of insulin receptor substrate-1 (IRS-1) and IRS-2 mRNAs in the CA1 region of the hippocampus.</p><p><b>RESULTS</b>Compared with those in CD group, the rats in HFD group showed a prolonged escape latency, longer swimming distance, faster average swimming speed, and shorter stay in the platformat 12 weeks. In HFD group, the serum levels of total cholesterol, triglyceride, low-density lipoprotein cholesterol, and fasting insulin were all significantly increased (P<0.05) and the level of high-density lipoprotein cholesterol decreased (P<0.01) in comparison with those in CD group at each of the time points. No significant difference was found in fast glucose levels between the two groups (P>0.05), but the expressions of IRS-1 and IRS-2 mRNAs were significantly decreased in HFD group at 12 weeks (P<0.05).</p><p><b>CONCLUSION</b>In obese rats, long-term feeding with high-fat diet leads to insulin resistance, which interferes with hippocampal expression of insulin receptor substrates and insulin metabolism to cause impairment of the cognitive function and accelerate cognitive deterioration.</p>
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AIM: To investigate the relationship between high temperature essential factor A-1(HTRA1) polymorphism and genetic susceptibility of wet age-related macular degeneration (AMD) in Han population. METHODS: Totally 201 patients of wet AMD in Han population were selected from May 2014 to January 2017 in our hospital as disease group,and 201 healthy persons of Han were selected as health group. Blood samples of peripheral vein were collected and genomic DNA was extracted. HTRA1 polymorphism loci were detected,and the rs11200638 and rs2248799 loci of HTRA1 gene were detected by Sequenom mass spectrometry platform. Then the relationship between HTRA1 polymorphism and genetic susceptibility of wet AMD were analyzed. RESULTS: The grade distributions of the genotype of the rs11200638 and rs2248799 loci in the two groups subjects had significant differences (P<0.01), and the frequencies of AA and TT in the disease group were respectively 51.2% and 57.7%,of which the health group were respectively 20. 9% and 28. 4%, and the former were significantly higher than the latter, with significant differences (P<0.01). The frequencies of risk allele A of rs11200638 loci and risk allele T of rs2248799 loci in the disease group were respectively 69.7% and 73.6%, of which the health group respectively were 45. 8% and 52 5%, and the former were significantly higher than the latter, with significant differences (P<0. 01). The OR values of rs11200638 genotype AA and AG were respectively 5.36 and 3.45,which were the risk factors of wet AMD (P < 0. 01). The OR values of rs2248799 genotype TT and TC were respectively 2.36 and 1.98, which were the risk factors of wet AMD (P<0.01). CONCLUSION: The rs11200638 and rs2248799 polymorphisms of HTRA1 gene are associated with the incidence of wet AMD,and the genotype AA and TT are closely related to the risk of wet AMD in Han population, of which the higher frequencies can increase the risk of wet AMD.
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An ultra-high performance liquid chromatography tandem mass spectrometric ( LC-MS/MS ) method for simultaneous determination of 8 kinds of neurotransmitters (5-HT, GABA, Glu, ACH, NE, DA, 5-HIAA, HVA) in rat serum was developed.The blood samples were extracted by 0.1% formic acid in acetonitrile and separated on a Waters ACQUITY UPLC BEH C18(2.1 mm×100 mm, 1.7 μm) using gradient elution, with the mobile phase consisting of acetonitrile and 0.1% formic acid in water.The samples were then ioniZed with positive electrospray ( ESI+) , and detected under multiple reaction monitoring ( MRM ) mode.As a result, 8 kinds of neurotransmitters were determined accurately in 10 min with a limit of quantitation of 1.8 ng/mL and intra-day and inter-day precisions of ≤9.2% ( n=6 ).This method showed a good linearity in detection of neurotransmitters and the linear correlation coefficients were greater than 0.994.Also the stability, recovery and matrix effect were eligible for the analysis.This method showed high accuracy, sensitivity, strong specificity, good stability, small matrix effect and short time for analysis, and was suitable for the quantitative determination of monoamine, amino acids and acetylcholine neurotransmittes in rat serum.
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Objective To explore the role of microRNA-155 ( miR-155 )/suppressor of cytokine signaling 1 ( SOCS1 ) pathway combined with IL-17 in modulating the early progression of Schistosoma japonicum.Methods BALB/c mice were infected subcutaneously with cercariae of S.japonicum before being sacrificed at 8 and 14 weeks after infection to collect liver samples for pathological observation by H&E staining .The spleens of mice were collected to calculate the spleen index.The level of IL-17 in serum was determined using ELISA.Furthermore, qRT-PCR was used to detect the expression of miR-155 and SOCS1 mRNA in the spleens of mice .Results Compared with normal group , the spleen index in the model group was increased significantly along with the loss of relative body mass .H&E staining revealed that the deposition of parasite eggs began to appear in the liver tissue at week 8 post-infection.Meanwhile, there were a large number of inflammatory cells infiltrating to form the eosinophilic granuloma.Over time, the formation of egg granulomas and the infiltration of inflammatory cells were alleviated on week 14 post-infection.The level of IL-17 in serum and the expression of miR-155 in the spleen were peaked on week 8 post-infection, and decreased sharply on week 14, but were still evidently higher than those in normal group .The expression of SOCS1 mRNA was progressively increased both on week 8 and 14. Conclusion The data indicates that miR-155 might cooperate with IL-17 to modulate SOCS1 in the development of S.japonicum infection.
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Objective To evaluate the efficacy of selective laser trabeculoplasty (SLT) as treatments of secondary glaucoma after intravitreal silicone oil injection. Methods Forty-five cases(45 eyes) of silicone oil glaucoma (SOG) from June 2014 to April 2016 were enrolled and divided into two groups according random digits table. The SLT treatment group had 21 cases (21 eyes), and drug treatment group had 23 cases(23 eyes).Intraocular pressure(IOP)changes were recorded 1 d, 1 week, 3 weeks, 1 month, 2 months, 3 months,4 months,5 months and 6 months after treatment.Results The decrease of IOP in SLT group was (11.47 ± 2.23), (11.27 ± 2.59), (10.43 ± 2.55), (11.93 ± 2.71), (13.75 ± 2.57),(13.93 ± 2.65),(10.45 ± 2.53)and(12.73 ±2.86)mmHg(1 mmHg=0.133 kPa).IOP of the control group decreased respectively (7.53 ± 3.29), (9.57 ± 3.49), (8.78 ± 4.21), (8.74 ± 3.86), (6.12 ± 4.41),(7.84 ± 3.26),(8.84 ± 4.25),(8.24 ± 3.56)mmHg.There was significant difference between the two groups 1 week, 1 month, 2 months, 3 months,4 months,5 months and 6 months after treatment (t = 4.17, 1.38, 2.89, 6.32, 3.89, 5.32, 5.19, P < 0.05 or < 0.01). Conclusions SLT is a safe and effective option for the treatment of patients with SOG.