Buyang Huanwu Decoction Ameliorates Damage of Erectile Tissue and Function Following Bilateral Cavernous Nerve Injury / 中国结合医学杂志

OBJECTIVE@#To verify the effect of Buyang Huanwu Decoction (BHD) in ameliorating erectile dysfunction (ED) after radical prostatectomy (RP).@*METHODS@#The composition of BHD was verified by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS) analysis. Bilateral cavernous nerve crush injury (BCNI) in rats was used to mimic the neurovascular injury occurring after RP. By the envelope method, forty rats were randomly divided into 4 groups as follows: sham (cavernous nerves exposed only), model (BCNI), low-dosage BHD [LBHD, 12.8 g/(kg·d)], and high-dosage BHD [HBHD, 51.2 g/(kg·d)] groups, 10 rats in each group, feeding for 3 weeks respectively. Erectile function was evaluated by measuring intracavernosal pressure (ICP). Changes in the histopathology of corpus cavernosum (CC) were examined by hematoxylin-eosin staining. Meanwhile, the fibrosis of CC was measured by Masson's trichrome staining and Western blot was used to detect the expressions of collagen I, transforming growth factor beta 1 (TGF- β 1) and α-smooth muscle actin (α-SMA). Apoptosis index was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) and Western blot for determining the expressions of B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X (Bax). The oxidative stress in the CC were assessed by the superoxide dismutase (SOD), malondialdehyde (MDA) and reactive oxygen species (ROS) levels. The proteins expression of c-Jun N-terminal kinase (JNK) and c-Jun were detected by Western blot. In addition, the expression of α-SMA and p-c-Jun in the CC was observed by double immunofluorescence staining.@*RESULTS@#The UPLC-QTOF-MS/MS analysis showed that BHD contained calycosin-7-O- β -D-glucoside, ononin, calycosin and formononetin. Compared with the model group, LBHD and HBHD treatment improved the ICP and the circumference, area, and weight of CC (P<0.05 or P<0.01). Furthermore, LBHD and HBHD treatments increased CC smooth muscle content and decreased apoptosis index (P<0.05 or P<0.01). LBHD and HBHD also elevated SOD and expression level of α -SMA and Bcl-2, and reduced MDA and ROS levels, as well as expression of TGF- β 1, collagen I, Bax, p-c-JNK, p-JNK in the CC compared with the model group (P<0.05 or P<0.01). The double immunofluorescence staining showed that the fluorescence degree of p-c-Jun in both LBHD and HBHD treatment groups was significantly reduced, whereas the α -SMA expression increased (P<0.05 or P<0.01).@*CONCLUSIONS@#BHD can improve ED of rats with BCNI, which is related to inhibiting fibrosis, apoptosis, and oxidative stress of CC. The ROS/JNK/c-Jun signaling pathway may play an important role in the process.

Research on clinical effects of non-bracket invisible appliance on the mandibular advancement treatment of skeletal Class Ⅱ growing patients with mandibular retrusion / 口腔医学

Objective@#To evaluate the effects of non-bracket invisible appliance mandibular advance(MA) on skeletal Class Ⅱ growing patients with mandibular retrusion.@*Methods@#Nineteen skeletal Class Ⅱ growing patients with mandibular retrusion who were treated in the department of stomatology of Changshu traditional Chinese medicine hospital from January 2018 to May 2021 were selected. They had an average age of (12.32±1.51) years old. The treatment group consisted of 10 children who were treated with MA. The control group consisted of 9 children who refused to treat their malocclusion. Cephalometrics of all patients were taken before and after the observation or treatment. The cephalometric data of two groups were analyzed. @*Results@#Compared with the control group, in the treatment gruop SNB angle, L1-NB angle, L1-NB distance, L6-MP distance, Z angle increased significantly (P<0.05);Co-Go distance, Co-Gn distance, SL increased more greatly than the control group; ANB angle, U1-SN angle, U1-NA angle, U1-NA distance, L1-MP distance, FCA angle decreased significantly (P<0.05); SE did not change significantly in the treatment group, but increased significantly in the control group (P<0.05).@*Conclusion @# MA can promote mandibular growth and improve lateral profile. The angle of the lower teeth and the angle of the mandible plane can be controlled by MA appliance.

Ginsenoside Rg1 injection combined with inosine tablets and vitamin B1 for the treatment of primary retinitis pigmentosa / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the effects of ginsenoside Rg1 injection combined with inosine tablets and vitamin B1 on serum brain-derived neurotrophic factor(BDNF), pituitary adenylate cyclase activating polypeptide(PACAP)and clinical efficacy in primary retinitis pigmentosa.METHODS: A total of 50 patients(100 eyes)with primary retinitis pigmentosa who admitted to the Department of Ophthalmology, the Second Affiliated Hospital of Hebei North University from August 2019 to March 2022 were selected as the research object. They were divided into the study group and the control group according to random number table, with 50 eyes in each group. Patients in the control group were treated with inosine tablets and vitamin B1, while patients in the study group were treated with ginsenoside Rg1 injection on the basis of the control group. The expression of BDNF and PACAP in serum, electroretinogram and spectral-domain optical coherence tomography(SD-OCT)were compared before and after treatment, and the retinal thickness(RT), mean deviation(MD), clinical efficacy and safety indexes were compared between the two groups.RESULTS: There were no differences in the MD of the two groups before treatment(t=1.670, P=0.098), while the MD of the study group was significantly lower than that of the control group after treatment(t=3.628, P&#x003C;0.01). Before treatment, RT with a diameter of 1mm at the circle of macular fovea was compared between the two groups(t=0.108, P=0.914), it was significantly higher than that in the control group after treatment(t=6.125, P&#x003C;0.01). Before treatment, there was no significant difference in the results of dark adaptation of electroretinogram between the two groups(all P&#x003E;0.05). After treatment, the results of dark adaptation in the study group were significantly better than those in the control group(all P&#x003C;0.01). Before treatment, there was no significant difference in the results of electroretinogram adaptation between the two groups(all P&#x003E;0.05). After treatment, the results of electroretinogram adaptation in the study group were significantly better than those in the control group(all P&#x003C;0.01). There was no significant difference in BDNF and PACAP between the two groups before treatment(all P&#x003E;0.05). BDNF and PACAP in the study group were higher than those of the control group after treatment(all P&#x003C;0.01). After treatment, no adverse reactions were observed in both groups.CONCLUSION: The treatment of patients with primary retinitis pigmentosa with ginsenoside will improve the retinal function and promote the prognosis of the disease by regulating the expression of BDNF and PACAP, and it is highly safe.

Treatment of a moderate volume of hypertensive intracerebral hemorrhage in the basal ganglia by 3D printed guide plate-assisted hematoma puncture and catheter drainage / 中国基层医药

Objective:To investigate the clinical efficacy of 3D printed guide plate-assisted hematoma puncture and catheter drainage in the treatment of a moderate volume of hypertensive intracerebral hemorrhage in the basal ganglia.Methods:The clinical data of 42 patients with a moderate volume of hypertensive intracerebral hemorrhage in the basal ganglia who received treatment with 3D printed guide plate-assisted hematoma puncture and catheter drainage in Dazhu Hospital of North Sichuan Medical College from January 2016 to January 2021 were retrospectively analyzed. In the traditional puncture group, there were 19 patients who received traditional punctures according to preoperative cranial CT findings (traditional puncture group). In the 3D printed guide plate puncture group, there were 23 patients who received hematoma puncture and catheter drainage assisted by a 3D printed guide plate. Preoperative preparation time (from admission to operation), operative time, the number of hematoma punctures, hematoma clearance rate, postoperative indwelling time of drainage tube, residual hematoma rate, the occurrence of puncture canal bleeding, intracranial infection, Glasgow Coma Scale score measured at 3 and 7 days after surgery, and Glasgow Outcome Scale score measured at 1, 3 and 6 months after surgery were compared between the two groups.Results:There were no significant differences in preoperative preparation time and operative time between the two groups ( t = 0.25, 0.40, both P > 0.05). 3D-printed guide plate-assisted hematoma puncture reduced the probability of reveiving one more hematoma puncture during the surgery. There was no significant difference in the number of hematoma puncture between the two groups ( χ2= 0.48, P > 0.05). There were no significant differences in the probabilities of puncture canal bleeding and intracranial infection between the two groups ( χ2 = 0.05, 0.03, both P > 0.05). Postoperative indwelling time of the drainage tube in the 3D printed guide plate puncture group was significantly shorter than that in the traditional puncture group [(3.10 ± 0.38) vs. (3.46 ± 0.52) days, t = 2.65, P < 0.05]. The residual hematoma rate in the 3D printed guide plate puncture group was significantly lower than that in the traditional puncture group [(32.04 ± 5.33)% vs. (37.37 ± 5.51)%, χ2 = 3.20, P < 0.05]. There were significant differences in Glasgow Coma Scale score measured at 3 and 7 days after surgery between the two groups [(12.04 ± 1.19) points vs. (11.26 ± 0.93) points, (13.65 ± 0.88) points vs. (12.94 ± 0.97) points, t = 2.33, 2.46, both P < 0.05]. Glasgow Outcome Scale score measured at 1, 3, and 6 months after surgery in the 3D printed guide plate puncture group was 18, 21, and 22 points, respectively, which was significantly higher than 9, 11, and 12 points in the traditional puncture group ( χ2 = 4.34, 4.69, 5.17, all P < 0.05). Conclusion:3D printed guide plate assisted hematoma puncture and catheter drainage for treatment of a moderate volume of hypertensive intracerebral hemorrhage in the basal ganglia can increase the accuracy of puncture, decrease hematoma residual rate, improve short- and long-term prognosis, does not prolong preoperative preparation time. Moreover, it costs low, is safe, and is easy to learn.

Analysis of clinical significance and prognostic impact of TET2 single nucleotide polymorphism I1762V in patients with acute myeloid leukemia / 中华血液学杂志

Objective: This study aimed to investigate the clinical and prognostic significance of TET2 single nucleotide polymorphism I1762V in patients with acute myeloid leukemia (AML) . Methods: The high-throughput sequencing method was used to sequence 58 hematological tumor-related genes in bone marrow samples from 413 patients with AML. TET2 I1762V and other somatic mutations were annotated and compared with patients' clinical information and prognosis. Results: I1762V was found in 154 patients with AML, which was significantly different from the general population in NyuWa Chinese Population Variant Database (χ(2)=72.4, P<0.001) . I1762V was not related to sex, age, and karyotype of patients with AML (P>0.05) . Patients with I1762V had a significantly higher proportion of NPM1 and KIT gene mutations than others (P<0.001) . NPM1 and KIT mutations were mutually exclusive. The survival analysis results revealed that the overall survival (OS) and progression-free survival (PFS) of patients with AML with I1762V were significantly greater than those of wild-type patients (HR=0.57, P=0.030; HR=0.55, P=0.020) , whereas the OS and PFS in patients with AML with DNMT3A mutation (with or without I1762V mutation) were lower than those of wild-type patients (HR=1.79, P=0.030; HR=1.74, P=0.040) . Conclusion: TET2 SNP I1762V has been linked to AML. I1762V is a prognostic factor of patients with AML, which can be used to guide the treatment and evaluate the prognosis of AML.

Strategy Optimization and Clinical Analyze of Multiple Nucleotide Polymorphism Analysis in the Chimerism Detection after Allogeneic Hematopoietic Stem Cell Transplantation / 中国实验血液学杂志

AbstractObjective: To investigate the sample selection, result correction and clinical application value of multi nucleotide polymorphism chimerism detection method based on Next-generation sequencing.@*METHODS@#The chimerism samples from November 2018 to June 2020 were collected, and Pearson correlation coefficient (r) was used to analyze the consistency of bone marrow and peripheral blood results detected by MNPseq; according to the different information integrity before transplantation, the calibration model was constructed to analyze the correction value of the micro chimerism results in each model; the clinical results were retrospectively analyzed to verify the reliability and practicability of chimerism results correction and the clinical value of MNPseq method.@*RESULTS@#The results of bone marrow and peripheral blood chimerism detected by MNPseq method were consistent with each other and showed significant correlation (r=0.985, P<0.01). The three groups of calibration models were constructed according to different pre-transplant information. For the no donor and pre-transplant patients information group, the correction value was 1%; while for the group with pre-transplant patients and without donor information, 0.61% of the chimerism rate and 13 heterotopic points were used as the correction value; 0.26% of the chimerism rate and 21.57% of the heterotopic points were used as the correction value for the group with pre-transplantation patients and donor information. After correction, the number of the patients with incomplete chimerism decreased from 276 (74.19%) to 141 (37.91%) (P<0.01). Among 18 (18/141, 12.77%) patients with incomplete chimerism, the results of MNPseq in the patients were 25-39 days earlier than those in STR and flow MRD, and the result showed statistical significance.@*CONCLUSION@#MNPseq method can be used to monitor chimerism with peripheral blood instead of bone marrow samples, and the results can be corrected to detect the changes of graft status in vivo in a more timely manner.

Exploring Key Genes and Signaling Pathways in Treatment of Bronchial Asthma with Xiao Qinglongtang Based on Network Pharmacology and Bioinformatics / 中国实验方剂学杂志

Objective:This research aims to construct the "disease-gene-target-components-drug" network with the methods of network pharmacology and bioinformatics， and to explore the key genes and signaling pathways of Xiao Qinglongtang in the treatment of bronchial asthma. Method:First，we selected the differentially expressed genes between patients with asthma and healthy people with use of the gene expressing Omnibus（GEO） database，and searched the active ingredients from Xiao Qinglongtang with use of TCMSP database，and then screened disease genes and herb ingredient targets as intersecting genes to construct the protein-protein interactions （PPI） network by using R language and Cytoscape 3.7.2 software. At the same time Gene Ontology （GO） analysis and Kyoto Encyclopedia of Genes and Genomes （KEGG） pathway enrichment analysis were carried out. Result:Series GSE43696 in GEO database were successfully filtered，which contained 108 pieces of chip data. A total of 820 differentially expressed genes were screened from the chip data. Then we filtered 169 active ingredients and 246 targets of Xiao Qinglongtang from database. Through the above steps，we obtained 25 intersecting genes， and PPI network results showed that 91 potential targets may be involved in the mechanism of Xiao Qinglongtang. A total of 180 gene functions such as response to oxidative stress，inflammatory response，extracellular matrix organization and positive regulation of vascular endothelial growth factor production were showed in GO enrichment analysis results. 39 signaling pathways were showns in the results of KEGG pathway enrichment analysis，such as T helper cell 17（Th17） cell differentiation，interleukin 17（IL-17）signaling pathway，tumor necrosis factor（TNF） signaling pathway，and hypoxia inducible factor-1（HIF-1） signaling pathway. Conclusion:Xiao Qinglongtang fully embodies the characteristics of multi-components，multi-targets and multi-pathways in the intervention of bronchial asthma. The results of the study could provide an important basis for mechanism research of Xiao Qinglongtang in treating asthma.

Study on Hypoglycemic Effect of Hordeum vulgare Polysaccharide on Diabetes Mellitus Model Mice and Its Mechanism / 中国药房

OBJECTIVE：To study the h ypoglycemic effect of Hordeum vulgare polysaccharide（HVP）on diabetes mellitus model mice and its mechanism. METHODS ：The mice were given intraperitoneal injection of streptozotocin （120 mg/kg）to induce diabetes mellitus model. After modeling ，the mice were randomly divided into model group ，metformin group （positive control ， 200 mg/kg），HVP high-dose ，medium-dose and low-dose groups （300，150 and 75 mg/kg），with 10 mice in each group. Blank control group was established additionally. Administration groups were given relevant medicine intragastrically ；blank control group and model group were given constant volume of water intragastrically ，once a day ，for consecutive 30 days. The levels of fasting blood glucose （FBG）were determined after 10，20，30 days of administration. After last FBG test ，mice were intraperitoneally injected with 10％ glucose solution （2 g/kg），then the area under the glucose tolerance （GTT）curve was measured at 30 and 120 min after injection. The serum levels of insulin ，the content of superoxide dismutase （SOD），glutathione peroxidase （GSH-Px）， malondialdehyde（MDA）in liver tissue were detected. Pancreatic morphology of mice were detected by HE staining. RESULTS ： Compared with blank control group ，the FBG ，area under GTT curve and MDA contnet in liver tissue were increased significantly in model group （P＜0.01），while serum levels of insulin ，SOD and GSH-Px contents in liver tissue were decreased significantly （P＜0.01）；the pancreatic tissue was seriously damaged with incomplete morphology and obvious vacuoles. Compared with model group，FBG，area under GTT curve ，MDA content in liver Δ 基金项目：国家自然科学基金资助项目（No.81473179） tissue were decreased significantly in HVP high-dose group ＊主管药师 。研究方向 ：临床药学 。电话：0510-85351490。E- mail：Wangshengya_helen@126.com （P＜0.05 or P＜0.01），serum content of insulin ，the content # 通信作者 ：副主任药师 。研究方向 ：医院药学 。电话：0510- of SOD and GSH-Px in liver tissue were increased 85351490。E-mail：3103221944@qq.com significantly（P＜0.05 or P＜0.01）；above indexes of HVP 中国药房 2021年第32卷第7期 China Pharmacy 2021Vol. 32 No. 7 ·807· low-dose and medium-dose groups were improved partially ，with statistical significance （P＜0.05 or P＜0.01）；the pancreatic tissue damage was alleviated ，the morphology was relatively complete ，the islet cells were closely arranged ，and the vacuoles were reduced. CONLUSIONS ：HVP can reduce the level of blood glucose in diabetic model mice ，increase insulin level and relieve pancreatic injury. The mechanism may be related to its antioxidation.

Application of multiple nucleotide polymorphism analysis in chimerism detection after allogeneic hematopoietic stem cell transplantation / 中华血液学杂志

Objective: To establish a new method for chimerism analysis after allogeneic hematopoietic stem cell transplantation by using multiple nucleotide polymorphism sequencing (MNPseq) , and to explore its feasibility and superiority. Methods: One hundred MNP fragments were screened and chimeric analysis was performed by high-throughput sequencing technology. The accuracy and sensitivity of the method were verified by simulating chimeric samples and post-transplant samples and comparing them with short tandem repeat (STR) analysis, fusion gene quantitative detection and flow cytometry for minimal residual disease. Results: The accuracy and sensitivity of MNPseq were better than those of STR, in which the sensitivity could reach 0.01%, about 100 times more sensitive than STR. MNPseq could further distinguish 42 STR fully chimeric samples, and after corrected by cutoff value, it was correlated with the quantitative detection of fusion gene. MNPseq could correct false positive of STR caused by the shadow peak, and could be used to detect chimeric samples lacking pre-transplant information from donors and recipients. Conclusion: MNPseq analysis based on high-throughput sequencing is a more accurate and sensitive chimerism detection method, and it solves the problem that chimerism cannot be detected due to the lack of pre-transplant information, which has extremely high clinical application value.

Packaging and identification of miR-137 overexpression lentivirus / 吉林大学学报(医学版)

Objective:To construct lentiviral vector which can overexpression miR-137 and produce lentivirus by lentivirus packaging system, and to explore its infection efficiency and expression in HEK293T cells.Methods: miR-137 sequence was chemically synthesized and cloned into lentiviral vector GV209, and the recombinant plasmid containing human miR-137 was obtained and identified.Then miR-137 recombinant plasmid together with two helper plasmids were transfected into HEK293T cells using Lipofectamine 2000.After the HEK293T cells were infected in multiplicity of infection(MOI) 40 for 48 h, the expression of green fluorescent protein (GFP) was observed by fluorescence microscope and the expression level of miR-137 was detected by fluorescence quantitative PCR.Results:The sequencing results showed that the inserted gene sequence was completely consistent with the published human miR-137 gene sequence in GenBank.The GFP was observed in the HEK293T cells infected with miR-137 overexpression lentivirus under fluorescence microscope.The fluorescence quantitative PCR results showed that the expression level of miR-137 in the cells infected with overexpression lentivirus was 12.74 times higher than that in the control cells.Conclusion:The lentivirus containing miR-137 gene is successful packaged, and it could efficiently infect the HEK293T cells.

Application of lumboperitoneal shunt and ventriculoperitoneal shunt in treatment of patients with communicating hydrocephalus :a Meta analysis / 重庆医学

Objective To investigate the effect of lumboperitoneal (L-P) shunt and ventriculoperitoneal(V-P) shunt for trea-ting the patients with communicating hydrocephalus .Methods The databases of PubMed ,Web of Science ,Scopuss ,Karge , EBSCO+MEDLINE ,OVID ,EMBASE ,CNKI ,CBM disc databases ,Wanfang databases ,Weipu databases were retrieved by com-puter .The relevant literatures about L-P shunt and V-P shunt for treating communicating hydrocephalus included in these databases during 1990-2016 were collected and performed the meta analysis by using the STATA 12 .0 software .Results The success rate of L-P shunt in treating communicating hydrocephalus was apparently higher than that of V-P shunt(P<0 .05) .Moreover ,postopera-tive infection rate ,obstruction rate of shunt system and total postoperative complications rate in L-P shunt were apparently lower than those of V-P shunt(P<0 .05) ,However ,there was no statistical difference in shunt poor rate between L-P shunt and V-P shunt(P>0 .05) .Conclusion L-P shunt is worth recommending .But due to lower quality of the evidences ,it is needed more high quality primary studies to remedy the insufficiency of the study .

Value of serum cancer antigen12-5 level in diagnosis of peritoneal effusion in patients with liver cirrhosis / 临床肝胆病杂志

ObjectiveTo investigate the value of serum cancer antigen 12-5 (CA12-5) level in the diagnosis of peritoneal effusion in patients with liver cirrhosis. MethodsA total of 142 patients with liver cirrhosis who were hospitalized at Beijing Tiantan hospital from January 2011 to December 2015 and met the inclusion criteria were enrolled. According to the presence or absence of peritoneal effusion, the patients were divided into peritoneal effusion group (81 patients) and non-peritoneal effusion group (61 patients). The two-independent-samples t test was used for comparison of normally distributed continuous data between groups, the Mann-Whitney U non-parametric test was used for comparison of non-normally distributed continuous data between groups, and the chi-square test was used for comparison of categorical data between groups. A Spearman correlation analysis was used to investigate the correlation between serum CA12-5 level and the degree of peritoneal effusion. ResultsThe peritoneal effusion group had a significantly higher serum CA12-5 level than the non-peritoneal effusion group ［290.00 (50.82-618.4) U/ml vs 15.39 (9.77-23.04) U/ml, Z＝-8.537, P＜0.01］. Serum CA12-5 level was positively correlated with the degree of peritoneal effusion (r=0.812, P＜0.01) and had a high diagnostic value for peritoneal effusion (the area under the receiver operating characteristic curve was 0.92). Serum CA12-5 level had a sensitivity of 81.5% and a specificity of 88.5% at a cut-off value of 35.00 U/ml. ConclusionSerum CA12-5 level can help with the diagnosis and monitoring of peritoneal effusion.

Health Effect of Forest Bathing Trip on Elderly Patients with Chronic Obstructive Pulmonary Disease / 生物医学与环境科学（英文）

Forest bathing trip is a short, leisurely visit to forest. In this study we determined the health effects of forest bathing trip on elderly patients with chronic obstructive pulmonary disease (COPD). The patients were randomly divided into two groups. One group was sent to forest, and the other was sent to an urban area as control. Flow cytometry, ELISA, and profile of mood states (POMS) evaluation were performed. In the forest group, we found a significant decrease of perforin and granzyme B expressions, accompanied by decreased levels of pro-inflammatory cytokines and stress hormones. Meanwhile, the scores in the negative subscales of POMS decreased after forest bathing trip. These results indicate that forest bathing trip has health effect on elderly COPD patients by reducing inflammation and stress level.

Association of a miRNA-137 rs1625579 polymorphism with neurocognitive function in patients with schizophrenia / 天津医药

Objective To investigate the aassociation of a microRNA-137 (miR-137) polymorphism, single nucleotide polymorphism (SNP) rs1625579, with neurocognitive function in patients with schizophrenia. Methods A total of 250 patients with schizophrenia were included in this study. The positive and negative syndrome scale (PANSS) was used to evaluate patients. The brief assessment of cognition in schizophrenia (BACS) scale was used to determine neurocongnitive functions in patients. Blood samples of patients were collected, and SNaPshot technique was used to compare the neurocognitive functions of different genotypes of rs1625579. Results The genotypes of TT, GT and GG were 221 (88.4%), 28 (11.2%) and 1(0.4%). There was no significant difference in PANSS score between TT genotype carriers and G allele (GG+GT) carriers. The detection of BACS showed that the digit sequencing score was significantly lower in patients with TT genotype than that of G allele (GG+GT) carrier ( P<0.05). There were no significant differences in other scores of BACS evaluation between two groups of patients. Conclusion The miR-137 polymorphism influences the working memory performance of schizophrenic patients in Chinese Han population.

Endobronchial Ultrasound Elastography for Diagnosing Mediastinal and Hilar Lymph Nodes / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Pathophysiological processes, such as malignancy, can lead to the formation of stiffer tissue in lung cancers. Endobronchial ultrasound (EBUS) elastography is a novel technique for measuring tissue stiffness during EBUS-guided transbronchial needle aspiration (EBUS-TBNA). The current study was conducted to investigate the diagnostic value of EBUS elastography for mediastinal and hilar lymph node metastasis in lung cancers.</p><p><b>METHODS</b>From January 2014 to January 2015, 40 patients suspected of lung cancer were enrolled, and a total of 68 lymph nodes were evaluated by EBUS-TBNA. EBUS-guided elastography of lymph nodes was performed prior to EBUS-TBNA. Standard EBUS characteristics were also described. Pathological determination of malignant or benign lymph nodes was used as the gold standard for this study. If EBUS-TBNA did not result in a formal pathological diagnosis of malignancy, patients were referred for a surgical procedure. Comparisons of elastography and standard EBUS characteristics were made between benign and malignant lymph nodes.</p><p><b>RESULTS</b>Elastography grading scores and strain ratios showed significant differences between benign and malignant lymph nodes (P = 0.000). The elastography strain ratio was more sensitive and specific for determining malignant lymph nodes than elastography grading score or standard EBUS criteria. The receiver operating characteristic curve for the elastography strain ratio showed an area under the curve of 0.933. The best cut-off point of the strain ratio for differentiating malignant from benign lymph nodes was 32.07. The elastography strain ratio had a sensitivity of 88.1%, the specificity of 80.8%, positive predictive value of 88.1%, and negative predictive value of 80.8% for distinguishing malignant from benign nodes. The overall accuracy of elastography strain ratio was 85.3%. The strain ratio of malignant and benign lymph nodes positively correlated with the elastography grading score (r = 0.561, P = 0.000).</p><p><b>CONCLUSIONS</b>EBUS elastography can be effectively used to predict mediastinal and hilar lymph node metastases in lung cancer. This noninvasive technique may thus complement standard EBUS and help guide EBUS-TBNA procedures.</p>

Detection of NPM1, FLT3 and C-KIT mutations in acute myeloid leukemia and their prognostic analysis / 中国实验血液学杂志

This study was aimed to evaluate the frequencies and prognostic significance of the nucleophosmin 1 (NPM1) mutation, the fms-like tyrosine kinase 3 (FLT3) mutation and c-KIT mutation in acute myeloid leukemia (AML) and to explore their relevance to clinical characteristics, cytogenetics and survival. Genomic DNA from 78 newly diagnosed AML from August 2010 to October 2012 was screened by PCR and sequencing or capillary electrophoresis (CE) for NPM1, FLT3 and c-KIT mutations. The results showed that the incidence of NPM1 mutation was 14.1% in AML patients and 26.7% in normal karyotype AML patients. NPM1 mutant cases were significantly associated with old age (P < 0.05), high peripheral white cell count and platelet counts (P < 0.05) and low expression of CD34 (P < 0.05), but no statistic difference was found in sex, percentage of bone marrow blasts, Hb, expression of CD117 and HLA-DR, complete remission rate, overall survival and relapse rate (P > 0.05). The prevalences of FLT3-ITD and FLT3-TKD mutations were 11.5% (9/78) and 3.8% (3/78) respectively, and no one patient has both of the two mutations. Patients with FLT3-ITD mutation had higher white blood cell counts and percentage of in bone marrow blasts (P < 0.05), and lower overall survival (P < 0.05), more relative to normal karyotype (P < 0.05), while no statistic difference was found in sex, age, platelet count, Hb level, complete remission rate and relapse rate (P > 0.05). No statistic analysis was performed due to the cases of less FLT3-TKD mutation. C-KIT mutation accounts for 7.7% (6/78). Patients with C-KIT mutation had a higher percentage in abnormal karyotype (P < 0.05), and higher relapse rate (P < 0.05), and lower overall survival, whereas no statistic difference was found in sex, age, percentage of bone marrow blasts, peripheral blood cell count, complete remission rate (P > 0.05). It is concluded that the detection of NPM1, FLT3 and C-KIT mutations may contribute to guiding treatment and evaluating prognosis of patients with AML.

The Solid Variant of the Aneurysmal Bone Cyst in the Lumbar Spine Mimicking a Malignant Bone Tumor / 대한정형외과학회잡지

The Solid variant of the aneurysmal bone cyst is clinically important, because its solid composition is comparable to that observed in osteosarcoma or osteoblastoma, presenting difficulty for the correct diagnosis. The fluid-fluid level, which is a common sign of the conventional aneurismal bone cyst, is not apparent in radiographs of the solid type. These cysts were localized, equally within the whole spine as compared to most conventional aneurysmal bone cysts in which are localized to the posterior neural arch of the cervical spine. In this particular patient case, a young male aged 11.5 years presented with lower back pain and radiating pain which was misdiagnosed as a malignant bone tumor. Surgical intervention was considered and the incisional biopsy and laminectomy were conducted due to the low possibility of malignancy. We present this case and literature reviews with radiological and pathological findings as an example of the differential diagnosis of malignant tumors.