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Table of Content

    21 January 2019, Volume 40 Issue 1
    Analysis of static balance impairment in patients with type 2 diabetes mellitus
    Li Jin, Xin lingyu, Ma Xiaoyu, Liu Bo
    2019, 40(1):  1-5.  doi:10.3969/j.issn.1006-7795.2019.01.001
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    Objective To explore the characteristics of static balance impairment in patients with type 2 diabetes. Methods Fifty-one patients with type 2 diabetes attending the clinic at Beijing Tongren Hospital, Capital Medical University, from January 2013 to December 2015 were recruited[male:27 persons, female:24 persons, average age (56.1 ±10.1)years]. Forty-three cases[male:17 persons, female:26 persons), average age (54.4 ±7.2)years] without the medical or family history of otology diseases and diabetes were set as control. All patients and controls completed Smart-Equi Test. Results There were no significant differences between the two groups; with respect to the balance test results for sensory organization test (SOT) score, somatosensory subtest score, vestibular subtest score, or limits of stability test (LOS) score (P>0.05 for all). However, the visual systems and motor control test (MCT) scores were significantly lower in diabetic patients than in control patients (P=0.032 and P=0.018). Conclusion Visual system impairment and decline in motion control ability may be the main characteristic of static balance impairment in patients with type 2 diabetes.
    Analysis of static balance function in patients with type 2 diabetes mellitus
    Jia Jia, Meng Yan, Zhang Lili, Zhuang Xiaoming
    2019, 40(1):  6-10.  doi:10.3969/j.issn.1006-7795.2019.01.002
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    Objective To evaluate the postural stability in a group of patients with diabetes mellitus. Methods The subjects were divided into control group (30 cases) and diabetes mellitus group (30 cases). General baseline data and endocrine-related test results were collected. Balance function tests were performed with eyes opened or closed and standing on hard platforms with a PC708 static balancing apparatus to evaluate the balanced function of diabetes mellitus patients. Results When the diabetic group was standing on a firm surface with open eyes, the total length of the track, the surface of the statokinesigram (SSKG) area and the Romberg quotient were greater than the control group, with statistically significant difference (P<0.05). When the diabetic group was standing on a firm surface with eyes closed, the total length of the track, and the SSKG area of diabetes mellitus subjects were greater than the control group, with statistically significant difference (P<0.05). The statokinesigram length (LFS) index was smaller than the control group, and the Romberg quotient was greater than the control group, both with statistically significant difference. (P<0.05). Conclusion The static balance function of type 2 diabetes mellitus patients decreased:The ability of diabetic patients to maintain static balance and stability in standing position with open eyes was lower than that of the control group. With eyes closed, the ability of diabetic patients to maintain static equilibrium and balance control in standing position was lower than that of normal people. The increase of Romberg rate indicates that the maintenance of standing static balance function in diabetic patients depends more on visual information.
    Analysis of vestibular function and risk factors in pre-diabetic mellitus patients
    Meng Yan, Zhuang Xiaoming
    2019, 40(1):  11-15.  doi:10.3969/j.issn.1006-7795.2019.01.003
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    Objective To compare the differences of vestibular function among the pre-diabetic patients and the controls and to analysis the characteristics and risk factors of vestibular dysfunction in pre-diabetic patients. Methods All participants underwent oral glucose tolerance test. Sixty-two pre-diabetic patients were enrolled with 44 age-and sex-matched controls. Weight, height, and other general information are collected in all subjects. Laboratory tests and vestibular caloric test were carried out. Slow phase velocity was collected. In pre-diabetic patients, the risk factors associated with vestibular dysfunction were analyzed. Results There were 44 cases with vestibular dysfunction in pre-diabetic patients, while 17 cases in the controls, with the statistically significant difference (P=0.001). Compared with the controls, slow phase velocity decreased in both eyes in the pre-diabetic patients, with the statistically significant difference (P=0.026 for the right eyes and P=0.016 for the left eyes). Logistic regression analysis showed that as age and glycosylated hemoglobin A1c (HbA1c) increased, the pre-diabetic patients had an increased risk of vestibular dysfunction (age P=0.013, HbA1c P=0.040). Conclusion The incidence of vestibular dysfunction is increased in the pre-diabetic patients. Age and HbA1c might be risk factors associated with vestibular dysfunction in the pre-diabetic patients.
    Analysis of distortion product otoacoustic emission characteristics in pre-diabetic mellitus patients with normal pure tone threshold
    Meng Yan, Jia Jia, Zhuang Xiaoming
    2019, 40(1):  16-19.  doi:10.3969/j.issn.1006-7795.2019.01.004
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    Objective To compare the differences of distortion product otoacoustic emission (DPOAE) among pre-diabetic patients with normal pure tone threshold and the controls and to investigate the characteristics of hearing loss in pre-diabetic patients. Methods All participants underwent oral glucose tolerance test(OGTT). Thirty pre-diabetic patients with normal pure tone threshold and younger than 60 years were enrolled with 30 age and sex matched controls. Weight, height, and other general information are collected in all subjects. Laboratory tests including hemoglobin A1C, fasting blood glucose, 2-hour postprandial blood glucose, triglyceride, high density lipoprotein cholesterol, low density lipoprotein cholesterol were carried out. Urine albumin-creatinine ratios were calculated. All subjects underwent DPOAE examination. All relevant parameters including DPOAE amplitude were collected. Results DPOAE amplitude at each frequency in the pre-diabetes group was lower than the control group, with statistical significances at 0.7,1, 1.5, 2, 3, 4 kHz in left ear and 1.5, 2, 3, 4, 6 kHz in right ear (P<0.05). Abnormal detection rate at each frequency in the pre-diabetes group was higher than the control group, with statistical significances at 3 kHz(P=0.037). Conclusion When pure tone threshold is normal, the function of outer hair cells of cochlea have been impaired in the pre-diabetes mellitus. The advantage of the right ear was weakened. The distortion product otoacoustic emission is more sensitive than pure tone audiometry.
    Influencing factors of hearing loss and its correlation with retinopathy in type 2 diabetes mellitus patients
    Wang Peng, Liu Bo, Zhao Mingyue, Yang Yi
    2019, 40(1):  20-26.  doi:10.3969/j.issn.1006-7795.2019.01.005
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    Objective To analyze the association between diabetic retinopathy(DR) and hearing loss in diabetes mellitus(DM) patients and to investigate the factors which affect hearing among DM patients. Methods Questionnaires and pure tone audiometry were performed in 73 patients with type 2 DM, The average age was (53.0±8.4)years,the course of diabetes was (10.3±7.0) years, who visited Beijing Tongren Hospital, Capital Medical University from October 2013 to December 2014. The patients were categorized into groups according to hearing loss and DR.The examination of the ocular fundus, the pure tone air and bone conduction threshold testing,Hemoglobin A, blood pressure, lipid and other examinations were carried out. Results In all of the 73 subjects with diabetes, pure tone audiometry confirmed the incidence of hearing loss in 26.0%, including10.5% cases who did not complained of hearing loss. The incidence of retinopathy is 39.7%. The age (P=0.005) and DR (P=0.006) exacerbated hearing loss in the mean hearing loss group of diabetes mellitus compared with the normal group. It is the same in the high-frequency hearing loss group compared with the normal group, with the age (P=0.001) and DR (P=0.017). Logistic regression analysis showed that the DR(OR=6.499,95%CI:1.546-27.317,P=0.011) significantly exacerbated the hearing loss in the both average hearing loss and high frequency hearing loss DR (OR=4.448,95%CI:1.195-16.551,P=0.026). Conclusion There have significantly association between DR and hearing loss in DM patients. The patient's subjective feeling did not reflect exactly their hearing function. The hearing screening should be performed in time for the patients with DR.
    Relationship between diabetic nephropathy and hearing loss in type 2 diabetes mellitus
    Zhao Mingyue, Liu Bo, Wang Peng, Yang Yi
    2019, 40(1):  27-34.  doi:10.3969/j.issn.1006-7795.2019.01.006
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    Objective To investigate the relationship between diabetic nephropathy (DN) and hearing loss in type 2 diabetes mellitus (T2DM) patients with different stages of renal function by testing the performance on auditory function. Methods According to the urinary albumin excretion rate (UAER), 40 patients with non-diabetic nephropathy (DM group), 28 patients with early diabetic nephropathy (DN Ⅲ group), and 27 patients with clinical diabetic nephropathy (DN Ⅳ group) were collected in this study. The glomerular filtration rate (GFR) and creatinine (Cr) were simultaneously tested, and then the auditory function were compared via examination of the pure tone audiometry and a coustic immittance. Results The hearing loss in DM, DN Ⅲ and DN Ⅳ groups mainly occurred at high frequency, with incidence of 60.0%, 71.4% and 92.6%, respectively, The difference is statistically significant. Pure tone audiometry results suggested an increased trend in the hearing threshold with the increase of the frequency of detection.The hearing threshold of DN Ⅲ and DN Ⅳ groups were higher than DM group at all frequencies (P<0.01). The hearing threshold of DN Ⅳ group was higher than that of DN Ⅲ group, and DN Ⅲ group higher than DM group at 250, 500, 1 000, 4 000 Hz (P<0.01). Correlation analysis showed that hearing threshold at high frequency was positively correlated with UAER (r=0.346, P=0.001), but negatively correlated with GFR (r=-0.230,P=0.025). Conclusion Diabetic nephropathy was closely correlated with hearing loss in patients with type 2 diabetes mellitus, the risk of hearing loss increased with an exacerbation of kidney disease. The hearing screening of patients with DN should be performed actively to detect hearing defectiveness and intervene at very early stage.
    Application of distortion product otoacoustic emission in hearing screening of diabetes mellitus patients
    Xin Lingyu, Li Jin, Gao Ying, Ma Xiaoyu, Liu Bo
    2019, 40(1):  35-39.  doi:10.3969/j.issn.1006-7795.2019.01.007
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    Objective To figure out the hearing loss awareness rate and hearing situation of type 2 diabetes mellitus (T2DM) patients of the community, and further to investigate application of distortion products otoacoustic emission (DPOAE) in community T2DM patients. Methods From April 2018 to October 2018, 156 T2DM patients aged 20-79 years in the community were enrolled, including 69 males and 87 females, with average age (62.74 ±6.54)years old. All the patients were investigated by questionnaire, pure tone audiometer (PTA), acoustic conduction resistance test, and DPOAE test. Results DPOAE amplitudes of each frequency was lower than the normal amplitudes, amplitudes of the hearing loss group was lower in each frequency than that of no hearing loss group, the difference in 1.5 kHz was statistically significant (P=0.014). Among 312 ears, 98 ears (31.41%) self-report of hearing loss, 242 ears (77.56%) hearing loss at 1.5 kHz on DPOAE examination, (P=0.000). In aged group, 67 ears (29.13%) with self-report of hearing loss and 190 ears (82.61%) hearing loss at 1.5kHz with DPOAE examination(P=0.000). In middle-aged group, 82 ears (37.80%) self-report of hearing loss of patients, and 52 ears (63.41%) at DPOAE 1.5 kHz was hearing loss (P=0.001). In all ears, 216 ears (69.23%) of hearing loss with PTA. Among 214 ears self-report of normal hearing, PTA found that 130 ears (60.75%) was hearing loss (P=0.000). In aged group, 165 ears of hearing loss (71.74%)with PTA(P=0.000). In middle-aged group, PTA suggest 51 ears (62.20%) of hearing loss (P=0.002). Conclusion The detection rate with DPOAE for hearing loss in T2DM patients was higher than that with pure tone audiometer. When middle-aged patients have no conscious of hearing loss, their DPOAE examination has identified the abnormalities. Middle-aged diabetic patients in the community should receive health education of hearing care and hearing screening as early as possible.
    Function of ether-a-go-go related gene channel in pancreatic β-cells
    Zhao Miaomiao, Yuan Shasha, Li Qi, Lu Jing, Huang Haixia, Yang Jinkui
    2019, 40(1):  40-44.  doi:10.3969/j.issn.1006-7795.2019.01.008
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    Objective To investigate the function of ether-a-go-go related gene (ERG) channel in pancreatic β-cells. Methods Whole-cell patch clamp technique was conducted to record the potassium currents and action potential in wild type (WT) and ERG knockout (KO) primary cultured pancreatic β-cells. Intra-peritoneal glucose tolerant test (IPGTT) was performed to measure the blood glucose levels in both WT and KO mice. Results KO pancreatic β-cells had decreased potassium currents and prolonged action potential duration 90% compared with WT ones. KO mice had better blood glucose levels during IPGTT. Conclusion ERG plays a role in the potassium currents and action potential in pancreatic β-cells, which may affect the blood glucose levels in vivo.
    Effect of human ether-α-go-go related gene channels on hepatic endoplasmic reticulum stress and apoptosis
    Lu Jing, Shen Han, Cheng Cheng, Liu Jingyi, Zhu Xiaorong, Xie Rongrong, Yuan Mingxia, Yang Jinkui
    2019, 40(1):  45-52.  doi:10.3969/j.issn.1006-7795.2019.01.009
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    Objective To study the relationship between human ether-α-go-go related gene (hERG) potassium channel and endoplasmic reticulum stress and apoptosis in hepatocytes. Methods The body weight and food intake of male 20-week-old hERG knockout (KO) and wild type (WT) mice, and HE staining of liver paraffin sections was performed. Western blotting was used to detect key enzymes of gluconeogenesis including glucose-6-phosphatase (G6pase) and phosphoenolpyruvate carboxykinase (PEPCK). Western blotting and real-time qPCR methods were used to detect liver apoptosis related genes including cleaved-cysteine aspartyl protease 3 (cleaved-caspase 3), B-cell lymphoma 2 (Bcl2) and Bcl2 associated X protein (Bax). Liver endoplasmic reticulum stress related genes including, phosphorylated-eukaryotic translation initiation factor 2α(p-eIF2α), activating transcription factor 4 (ATF4) and C/EBP-homologous protein (CHOP) were also detected. hERG lentivirus was injected via tail vein of KO mice, and Western blotting was used to detect the protein levels of islet and liver endoplasmic reticulum stress and apoptosis related indicators. Results Compared with WT mice, no statistically significant differences was observed in body weight and food intake in KO mice. G6Pase expression level has no significant change, while the up-regulation of PEPCK expression suggested that hERG knockout caused abnormal liver glucose metabolism. The endoplasmic reticulum stress and apoptosis related genes were up-regulated suggesting the presence of endoplasmic reticulum stress and apoptosis in KO mice. After the overexpression of hERG in KO mice, the liver endoplasmic reticulum stress and apoptosis were improved. Conclusion hERG potassium channel can improve glucose metabolism in liver cells with reducing liver endoplasmic reticulum stress and apoptosis.
    Predictive value of haptoglobin on renal dysfunction in patients with early diabetic kidney disease
    Zheng Xiaomin, Yang Fangyuan, Liu Cuiping, Yang Jinkui
    2019, 40(1):  53-58.  doi:10.3969/j.issn.1006-7795.2019.01.010
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    Diabetic kidney disease is an important complication that occurs in some diabetes patients, and it is a leading cause of end-stage renal disease.Biomarkers predicting the deterioration of renal function are important in clinical settings.Microalbuminuria, creatinine and urea nitrogen are widely used as markers to predict renal function decline, but the predictive value of these markers for kidney damage are limited.It is necessary to further search the indicators of diabetic kidney disease for early diagnosis. Several studies suggested that urine haptoglobin is a novel biomarker for predicting kidney damage in patients with diabetes.This article reviews the clinical significance and related mechanisms of the predictive value of haptoglobin on renal dysfunction in patients with early diabetic kidney disease.
    Expression and regulation of monocarboxylate transporters 4(MCT4) in prostate cancer
    Ping Hao, Ma Linxiang, Wang Mingshuai, Long Jun, Niu Yinong, Liu Yuexin, Xing Nianzeng
    2019, 40(1):  59-64.  doi:10.3969/j.issn.1006-7795.2019.01.011
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    Objective To investigate the expression and clinical significance of monocarboxylate transporters 4(MCT4) in prostate cancer(PCa), and explore the regulation mechanism of MCT4 in PCa. Methods The expression of MCT4 was detected by immunohistochemistry in PCa, benign prostatic hyperplasia(BPH) and para-carcinoma tissues(PCT). The relation between the expression and clinicopathological changes was analyzed statistically. The expression of MCT4 was examined with Western blotting in prostate cancer cells. The effects on N-cadherin, E-cadherin and pERK1/2 by inhibition of MCT4 was also analyzed. Results The expression of MCT4 in PCa was significantly higher than those in BPH and PCT (P=0.003). Furthermore, the increased expression of MCT4 protein was significantly associated with the presence of lymph node metastasis of PCa(P=0.022). The Western blotting indicated that, the expression of MCT4 protein was higher in PC3 and DU145 than in RWPE-1 and LNCap cell lines. With inhibition of MCT4, the level of N-cadherin and pERK1/2 was decreased, while that of E-cadherin was increased. Conclusion The expression of MCT4 may be involved in the regulation of epithelial-mesenchymal transition (EMT) and ERK1/2, and it is closely related to the metastasis of PCa. The expression of MCT4 has significant clinical implications for diagnosis and treatment of PCa.
    Detection of MAP1A expression in prostate cancer and its clinical characteristics
    Wang Wei, Su Jiaming, Yuan Dongbo, Zhang Wei, Chen Weihong, Sun Zhaolin, Zhu Jianguo
    2019, 40(1):  65-71.  doi:10.3969/j.issn.1006-7795.2019.01.012
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    Objective To investigate the expression of MAP1A in prostate cancer and its relationship with clinical features. Methods The expression of MAP1A at the protein level in human prostate cancer and non-cancerous prostate tissue was detected with immunohistochemistry, and it was further validated with quantitative real-time polymerase chain reaction (RT-qPCR) at the mRNA level. Subsequently, the association of MAP1A expression with the clinical characteristics of the patients with prostate cancer was statistically analyzed with the Cancer Genome Atlas (TCGA) database. Results Immunohistochemistry stains showed that the protein expression of MAP1A was significantly decreased in prostate cancer tissues compared with adjacent normal tissues[immunoreactive score (IRS):Prostate cancer tissue=4.08±1.58,Tumor-adjacent normal tissue=4.91±1.46,P<0.001]. The positive expression rates of MAP1A in PCa tissue samples and adjacent normal tissue samples were 58.6% and 82.7%, respectively, indicating a statistically significant difference (χ2=12.225,P=0.001). MAP1A mRNA expression was detected with quantitative real-time PCR and it was significantly lower in prostate cancer than in normal prostate tissue (P=0.019). Analysis of TCGA data suggested, that the expression of MAP1A is significantly different in the tumor tissues with different clinical characteristics, such as Gleason score (P<0.001), clinical pathological stage (P=0.009), metastasis (P=0.008), and overall survival rate (P=0.049). Conclusion MAP1A is down-regulated in prostate cancer and is associated with the staging of tumor tissue. The later stage of tumor tissue, the lower the expression of MAP1A, suggesting that MAP1A is related to the development and progression of prostate cancer.
    Prevalence and prognostic significance of TMPRSS2-ERG fusion gene in prostate cancer with lymph node metastasis
    Xie Yingwei, Jin Shipeng, Yan Wei, Wang Wei, Ping Hao, Liu Yuexin
    2019, 40(1):  72-77.  doi:10.3969/j.issn.1006-7795.2019.01.013
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    Objective To investigate the distribution and prognostic significance of TMPRSS2-ERG fusion gene in lymph node-positive prostate cancer. Methods Fifty cases of lymph node metastasis after radical prostatectomy from January 2008 to December 2012 were collected. All patients received endocrine therapy after operation. The TMPRRS2-ERG fusion gene was detected with fluorescence in situ hybridization. The data were correlated with various tumor features (Gleason score, stage) and biochemical recurrence-free, disease-specificity, and overall survival. The distribution of clinicopathological data and prognosis of patients were compared with each other for the patients with positive and negative fusion genes. Results The TMPRSS2-ERG fusion gene was detected in 19 cases (38%) of the primary tumors. Fusion genes were present in 16 cases (32%) of the metastatic lymph nodes. The primary tumor and metastatic lesion TMPRSS2-ERG status was in good agreement (Kappa=0.73). The TMPRSS2-ERG fusion gene and Gleason score in primary tumors in COX analysis were predictors of biochemical recurrence. In survival analysis, the prognosis of primary tumors/lymph node fusion gene (+/+) group and primary tumors/lymph node fusion gene (+/-) group was lower than that of primary tumors/lymph node fusion gene (-/-) group, with significant difference in the non-biochemical recurrence rate (P=0.03). Conclusion The positive rate of TMPRSS2-ERG fusion gene in primary prostate cancer with lymph node metastasis was 38%. The fusion gene of TMPRRS2-ERG in primary tumors and lymph node metastases had good consistency (Kappa=0.73). Patients with positive primary tumor TMPRSS2-ERG fusion gene have a poor prognosis.
    Application of enhanced recovery after surgery in retroperitoneal laparoscopic upper urinary surgeries
    Liu Sai, Wasilijiang Wahafu, Niu Yinong, Gao Jiandong, Cui Liyan, Song Liming, Ping Hao, Yang Feiya, Wang Mingshuai, Xing Nianzeng
    2019, 40(1):  78-83.  doi:10.3969/j.issn.1006-7795.2019.01.014
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    Objective To compare the efficacy and safety of enhanced recovery after surgery (ERAS) and conventional recovery after surgery (CRAS) in retroperitoneal laparoscopic upper urinary surgeries. Methods From June 2016 to September 2017, 62 cases of retroperitoneal laparoscopic upper urinary surgeries were conducted, in which 33 patients with CRAS between June 2016 and May 2017 and 29 cases with ERAS between May 2017 and September 2017. There were no statistical differences between the two groups in some preoperative parameters, including age, body mass index (BMI), Charlson comorbidity index (CCI), and the American Society of Anesthesiologists (ASA) score. No significant differences were found between the two groups in preoperative laboratory results (P>0.05). The perioperative information and early (30-day) complications of 62 patients were analyzed. Results Twenty-nine patients with ERAS and 33 patients with CRAS were successfully implemented with retroperitoneal laparoscopic upper urinary surgeries. There were significant differences between the two groups in intraoperative crystalloid infusion[1 000(525-1100)mL vs 1 100(1 000-1 350)mL, P=0.027], intraoperative colloid infusion[500(500-500)mL vs 500(500-1 000)mL, P=0.007], duration of gastric tube[0d vs 1(1-1)d, P=0.000], and duration of resumption to normal diet[1(1-2)d vs 2(1-3)d, P=0.023]. No significant differences (P>0.05) was observed between the ERAS and the CRAS group in operative time, estimated blood loss, duration of drainage, postoperative days, and the ratio of surgeries. There were 3 cases (10.3%) and 5 cases (15.2%) of complications in Grade 1 of Clavien-Dindo in the ERAS and CRAS group, respectively. No patients were readmitted to the hospital. Conclusion Compared with CRAS, ERAS can accelerate the resumption to normal diet. The application of ERAS is safe and feasible in retroperitoneal laparoscopic upper urinary surgeries. Randomized controlled trials with large sample size are further needed to evaluate the program comprehensively.
    Analysis of the effect of a second transurethral resection for non-muscle invasive bladder cancer
    Ding Xianchao, Song Liming, Wasilijiang·Wahafu, Niu Yinong
    2019, 40(1):  84-89.  doi:10.3969/j.issn.1006-7795.2019.01.015
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    Objective To investigate the clinical efficacy of the first transurethral resection of bladder tumor (TURBT) vs. repeated TURBT (Re-TURBT) in the treatment of non-muscle invasive bladder cancer and study the clinical significance and indications of Re-TURBT. Methods The 56 cases of non-muscle invasive bladder cancer undergoing surgical treatments in our hospital from January 2011 to June 2017 were divided into two groups:31 patients undergoing conventional TURBT (control group) and 25 cases undergoing Re-TURBT about 8 weeks after the first TURBT (observation group). Both groups of patients received immediate postoperative bladder perfusion and maintain intravesical instillation. Postoperative recurrence rate and progress rate were compared with each other between two groups. Results There was no significant difference in gender(χ2=0.144,P>0.05), age(t=-1.03,P>0.05), number of tumor(χ2=0.750,P>0.05), stage of tumor(χ2=0.120,P>0.05), grade of tumor(χ2=0.002,P>0.05)between two groups. All cases were followed up for 6-24 months. Of the observation group, 3 cases had residual neoplasms, including 2 in Ta and 1 in T1. A total of 5 cases of recurrence in observation group, including 2 cases in Ta and 2 cases in T1, 1 case of progress from T1 to T2 after 11 months of Re-TURBT. There were 17 cases of recurrence in control group, including 12 cases in Ta and 4 cases in T1, and 1 case of progress from T1 to T2 after 18 months of Re-TURBT. There was significant difference in postoperative recurrence rate between two groups(χ2=7.042,P<0.05). No serious complications such as bladder perforation, ureterostoma injury and massive hemorrhage occurred in the two groups. Cystoscopy was re-examined every 3 months after surgery in both groups, and blood routine, urine routine and biochemical liver function were also re-examined to observe postoperative recurrence and progression in the two groups. Conclusion TURBT for non-muscle invasive bladder cancer is prone to recurrence or progression. For the patients with the first TURBT of tumor stage ≥ T1, high grade tumor (G2 and G3), tumor size ≥ 3 cm or multiple tumors (≥ 3 or more), the re-TUBRT can detect and remove the residual tumor at an early stage, and significantly decrease the recurrence rate of non-muscle-invasive bladder cancer. The specimens with smooth muscle tissue are helpful for accurate assessment of tumor pathological staging.
    Application of artificial intelligence and 3D image reconstruction in the diagnosis and treatment of prostate cancer
    Zhang Zhiying, Qiu Min, Ma Lulin, Lu Jian
    2019, 40(1):  90-93.  doi:10.3969/j.issn.1006-7795.2019.01.016
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    In recent years, 3D image reconstruction has been used in the diagnosis and treatment of prostate cancer, and the emergence of artificial intelligence has made 3D image reconstruction used more widely. Artificial intelligence is a new technological science that studies and develops theories, methods, technologies and application systems for simulating, extending, and expanding human intelligence. It has preliminary applications in medical imaging and robotic assisted surgery. Image recognition and depth learning are the core technologies of medical artificial intelligence. This paper focus on the prospects of the application of artificial intelligence combined with 3D image reconstruction in the diagnosis and treatment of prostate cancer.
    miR-378a-5p down-regulates SphK1 expression in LX-2
    Qi Changbo, Chang Na, Yang Lin, Li Liying
    2019, 40(1):  94-100.  doi:10.3969/j.issn.1006-7795.2019.01.017
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    Objective To investigate whether microRNA could regulate the expression of sphingosine kinase 1 (SphK1) mRNA in LX-2 cells. Methods Prediction of microRNAs was performed on bioinformatics sites. Real-time quantitative polymerase chain reaction (RT-qPCR) was applied to detect the expression of SphK1 mRNA in LX-2 cells. Results Only miR-378a-5p, not miR-92a-2-5p or miR-708-5p, could suppress the increase of SphK1 mRNA expression caused by transforming growth factor-β1 (TGF-β1) in LX-2. And the expression of SphK1 mRNA was up-regulated when the inhibitor of miR-378a-5p was applied in LX-2 cells. Conclusion miR-378a-5p took part in the regulation of SphK1 mRNA expression in LX-2, and it could down-regulate the increase of SphK1 mRNA expression caused by TGF-β1.
    AMP-activated protein kinase inhibits insulin-like growth factor-1 signaling in vascular smooth muscle cells via regulating activation of extracellular signal-regulated kinases 1/2
    Ning Junyu, Jing Haiming, Du Hongju, Qi Lijuan, Gao Shan, Li Guojun
    2019, 40(1):  101-105.  doi:10.3969/j.issn.1006-7795.2019.01.018
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    Objective To further demonstrate AMP-activated protein kinase (AMPK) inhibiting IGF-1-stimulated cell proliferation and determine its potential mechanism in porcine aorta vascular smooth muscle cells (pVSMCs). Methods Metformine was utilized to enhance activation of AMPK (shown as increasing phosphorylation level of AMPK at threonine 172). Site-directed mutagenesis was utilized to construct constitutively active AMPK. Short hairpins RNA (shRNA) for AMPK were designed to construct AMPK silencing vectors. AMPK activator metformine, Lenti-virus-mediated expression of constitutively active forms of AMPK and Lenti-virus-mediated AMPK knocking-down were utilized to observe influence of AMPK activity on IGF-1-stimulated activation of extracellular signal-regulated kinases 1/2 (ERK1/2,phospnorylation of ERK1/2 at threonine 202 and tyrosine 204) as well as subsequential cell proliferation in porcine aorta vascular smooth muscle cells. Results The AMPK activator metformine significantly increased phosphorylation of AMPK at thr172 and inhibited IGF-1-stimulated phosphorylation of ERK1/2 at threonine 202 and tyrosine 204(T202/Y204). Constitutively active forms of AMPK were expressed in pVSMCs and suppressed IGF-1-stimulated phosphorylation of ERK1/2 at T202/Y204 and cell proliferation. AMPK expression was significantly decreased in pVSMCs infected with AMPK silencing Lenti-virus. AMPK knocking-down induced higher phosphorylation of ERK1/2 at T202/Y204 upon IGF-1 stimulation in porcine aorta vascular smooth muscle cells. Conclusion AMPK induces inhibition of IGF-1 signaling through suppressing activation of ERK1/2 in porcine aorta vascular smooth muscle cells.
    Visual analysis on the study of altmetrics
    Gong Jiajian, Meng Qun
    2019, 40(1):  106-111.  doi:10.3969/j.issn.1006-7795.2019.01.019
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    This article collects citations from China National Knowledge Infrastructure (CNKI) on the topic of "altmetrics", then uses CiteSpace to analyze these citations with visual analysis methods such as key words clustering, authors clustering, authors cooperation network, etc. Analysis results indicate that these researches mainly focus on altmetrics, scholar impact, scientific evaluation, relative analysis and social network. The results also reveal the lack of theoretical innovation and less collaborative research. It is suggested that these two aspects should be further strengthened.
    Course of depression and anxiety in patients undergoing percutaneous coronary intervention and their family caregivers
    Pu Lianmei, Li Ying, Li Hong, Li Xiang, Ruan Yang, Han Fusheng, Tian Chunying, Jin Zenning
    2019, 40(1):  112-118.  doi:10.3969/j.issn.1006-7795.2019.01.020
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    Objective To follow up the course of anxiety and depression in patients undergoing percutaneous coronary intervention (PCI) and their family caregivers (FCs). Methods Fifty dyads of patients undergoing PCI and their FCs completed self-report questionnaires at three timepoints (before PCI, at discharge, and 1 month after discharge). Depression and anxiety levels were measured by Self-rating Depression Scale (SDS) and Self-Rating Anxiety Scale (SAS). Participants were also asked an open-ended question about their most important current concerns at each interview. Results There were four different characteristics among different groups according to SDS and SAS scores. The percentages of families without psychological distress increased gradually from pre-PCI to 1 month after discharge, for 42%,52% and 54%, respectively. The percentages of families with psychological distress were low at discharge (8%), but were high and similar between before-PCI(12%) and 1 month post-PCI (14%). The percentages of FCs with psychological distress reduced over time for 30%, 26% and 18%, respectively.There were not significant changes in the percentages of patients with psychological distress (range 14%-16%). With the time change, the average SDS and SAS scores of FCs decreased, while those of patients were higher before PCI (12%) and 1 month after discharge than at discharge.The above results were not significant difference (P>0.05). The main symptom complained was sleep disorder in participants who experienced psychological distress. Major concerns of patients and FCs were similar before PCI, but became different after discharge. Conclusion Our study reveals that the overall psychological state of patients and their families are not significantly improved after discharge if they had anxiety or depression before PCI.
    Correlation between environmental factors and severity of bleeding in hemophilia A
    Chen Kun, Yang Linhua, Wang Gang, Liu Xiuer, Qin Xiuyu, Zhang Xialin
    2019, 40(1):  119-123.  doi:10.3969/j.issn.1006-7795.2019.01.021
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    Objective To observe the correlation between the environmental factors of clinical heterogeneity and the severity of bleeding in patients of severe hemophilia A with intron 22 (Inv22) and intron 1 (Inv1) inversion. Methods A retrospective analysis of 63 patients of severe hemophilia A with Inv22 and Inv1 who were enrolled in the Shanxi Hemophilia Management Center from 2009 to 2012 was conducted.The general information, first bleeding age, first joint bleeding age, first treatment age, annualized bleed rate, were recorded in detail. One-way analysis and Logistic regressive were used to analysis the correlation between environmental factors and severity of bleeding. Results Among the 63 patients, the average age was (17.75±8.51) years, the median age was 15 years, the average annual bleeding rate was (77.83±56.43) times per year, and the median annualized bleeding rate was 60 times per year. The age, the first treatment age, and treatment regimen were statistically significant(P<0.05)within univariate analysis. Ordered Logistic regression analysis results showed that patients with first joint bleeding age ≤ 1 years were more likely to suffer from bleeding (OR=13.97, 95% CI:2.32-84.52), the first treatment of patients aged ≤ 1 year was less likely to suffer from bleeding (OR=0.03, 95% CI:0.01-0.49). Conclusion Among the patients of severe hemophilia A with Inv22 and Inv1, patients with the first joint bleeding age of ≤ 1 years were more likely to suffer from bleeding, and patients with age ≤ 1 years were less likely to suffer from bleeding. The first joint bleeding age can be used as an indicator of the severity of bleeding. It is recommended to give an earlier prophylaxis to avoid the occurrence of severe bleeding later.
    Retrospective study of cervical dynamic stabilization in the treatment of single level cervical spondylosis
    Meng Xianglong, Hai Yong, Yang Jincai, Su Qingjun
    2019, 40(1):  124-128.  doi:10.3969/j.issn.1006-7795.2019.01.022
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    Objective To study dynamic cervical implant (DCI) in the treatment of single level operation curative effect of cervical spondylosis. Methods We reviewed 16 cervical spondylosis patients treated with DCI. Surgical levels include C4-5, C5-6, C6-7, among them 3 cases at C4-5, 7 cases at C5-6, 6 cases at C6-7. All patients had complete follow-up data, including preoperative, postoperative 3 months, postoperative 6 months and postoperative 12 months. Comparison of preoperative and postoperative clinical score by visual analogue score (VAS) and neck disability index (NDI) were done. The operation time, amount of blood loss, cervical extension and flexion prosthetic stability, displacement of the prosthesis, subsidence, and adjacent segment motion imaging were recorded. Results Compared with preoperative NDI and VAS score, significance were found at 3 months, 6 months and 12 months follow-up, VAS and NDI scores significantly improved. Good mobility was maintained and no adjacent segment degeneration was observed. No internal fixation loosening, displacement, no perioperative nerve injury and infection cases occurred. Conclusion 1 year follow-up results showed that single level cervical spondylosis decompression and internal dynamic fixation with DCI has excellent surgical outcomes for cervical spondylosis, maintaining index and adjacent segmental mobility, and improve the cervical sagittal alignment.
    Evaluation of filling the bone gap with crushed autogenous bone in immediate implant surgery: a CBCT study
    Lin Shichen, Duan Shaoyu, Yang Lian, Sun Dandan, Li Xin, Liu Hang
    2019, 40(1):  129-135.  doi:10.3969/j.issn.1006-7795.2019.01.023
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    Objective To evaluate the clinical effect of filling the bone gap with autogenous bone gotten from immediate implant site by cone beam computed tomography (CBCT). Methods Total of 32 patients (32 single anterior teeth that should be extracted) were divided into two groups with stratified randomization. Test group (16 cases):got the autogenous bone from extraction site with trephine and then implanted, filled the crushed autogenous bone into the gap around the implant, placed the healing cap or took immediate restoration and sutured the wound. Control group (16 cases):performed immediate implant after extraction, filled Bio-Oss Collagen into the gap, placed the healing cap or took immediate restoration and sutured the wound. CBCT should be taken after 6 months, compared the alveolar width and height with preoperative. Results The success rates of the two groups were 100%. Inter-group comparison between the two groups showed no significant difference in the change of alveolar width and height of labial and palatal bone plates before and 6 months after operation (P>0.05). Intra-group comparison in both groups showed significant difference in the alveolar width and height of labial and palatal bone plates before and 6 months after operation (P<0.05). Conclusion The method of filling the bone gap with crushed autogenous bone gotten from immediate implant site was simple and practical, which could obtain good clinical effect.
    Clinical characteristics and prognosis of patients under 50 years old suffering from colorectal cancer: a retrospective analysis of 128 cases
    Xu Yi, Zhao Xiaomu, Li Yalun, Guo Wei, Sun Wuqing, Wang Jin
    2019, 40(1):  136-142.  doi:10.3969/j.issn.1006-7795.2019.01.024
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    Objective To explore the clinical features of patients under 50 years old suffering from colorectal cancer and analyze the factors that influence the prognosis, so as to help clinicians to improve the understanding of patients under 50 years old suffering from colorectal cancer. Methods We retrospectively analyzed the clinical data of colorectal cancer patients under the age of 50 who received surgical treatment in our hospital from January 1st, 2005 to December 31st, 2012, and collected their postoperative follow-up information. The Kaplan-Meier method was used to draw the survival curve. The Log-rank test was used to the univariate analysis. Factors that were significant in the univariate analysis were included in the COX multivariate regression analysis to determine the independent factors that affected the prognosis. Results The most common clinical manifestations of patients under 50 years old with colorectal cancer were hematochezia and abdominal pain.The proportion of mucinous adenocarcinoma and signet ring cell carcinoma was 25.8%, and the ratio of TNM stage Ⅲ and IV was 61.7%. Multivariate analysis showed that radical operation,tumor deposits were associated with the prognosis of patients under 50 years old with colorectal cancer. Conclusion The patients under 50 years old with colorectal cancer have poor pathological types and late TNM stages. Patients with tumor deposits usually have a poorer prognosis, and radical surgery can improve the prognosis of patients under 50 years of age with colorectal cancer.
    Clinical characteristics and treatment of elastofibroma dorsi: experience in 71 cases
    Liu Meng, Zou Dapeng
    2019, 40(1):  143-147.  doi:10.3969/j.issn.1006-7795.2019.01.025
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    Objective To summarize the experience in the diagnosis and treatment of elastofibroma dorsi. Methods Clinical data of 71 cases of pathologically determined elastofibroma dorsi from January 2010 to April 2017 were retrospectively reviewed,including clinical characteristics, radiological examinations and pathological alterations, surgery, postoperative complications. Results Most patients were female(57/71)in this series.All the lesions were located within the muscles in the subscapular region.There were 18 cases with bilateral involvement.Patients complained of pain(19/71) and feeling of foreign body(16/71).One case was associated with numbness of the lateral upper limb, and thirty-five patients were asymptomatic.The size of the masses was between 4 centimeters to 14 centimeters,averaging at(8.46±2.67)centimeters.Accurate diagnosis was made in all the cases before the histological exams solely based on the physical examination and imaging findings. Marginal resection was done for all the cases under local anesthesia or general anesthesia.Seroma,as the major complication, which was resolved by repeated paracentesis.Sixty-five cases were followed-up with ultrasonic.No recurrence was found during the follow-up period(2 months to 85 months,median 23.16 months). Conclusion Elastofibroma dorsi is frequently located between inferior corner of scapula and posterior chest wall. It is a very special type of soft tissue tumors that its diagnosis call usually be made solely on the basis of unique imaging characteristics and physical examination before the histological exam.Surgical marginal excision is the choice of treatment with good short-term and long-term results.
    Application of computed tomography angiography in evaluation of bridging vessels after coronary artery bypass grafting
    Liu Fei, Zhou Ziqiang, Wu Mingying, Xian Junfang
    2019, 40(1):  150-156.  doi:10.3969/j.issn.1006-7795.2019.01.027
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    The patency of the bridging vessels is an important factor in terms of surgical outcomes and prognoses in patients undergoing coronary artery bypass graft surgery. Therefore, evaluation of bridging vessels is of important clinical significance. Coronary angiography is a dominant method for the evaluation of bridge vessels. However, due to its invasiveness and complications, patients are usually required to be hospitalized and hence resulting in limited clinical application. Computed tomography angiography (CTA) is non-invasive, easy to operate, and reproducible. With the development of computed tomography technology, the application of CTA in the evaluation of bridge blood vessels has attracted more and more attention. This paper reviews the application history, current situation, hot issues and future development of CTA in bridge vessel evaluation.