Objective To investigate the differences of the correct memorization of a sentence with auditory between the hearing-impaired children after rehabilitation training and normal children.Methods Twenty-four hearing-impaired children and 14 normal hearing children at age 3~4 were selected.The hearing-impaired chil-dren were divided into two groups according to the length of the hearing device.The closed-set sentence test of e-valuation of auditory response to speech (EARS)was used.Results 1 .In the first test,the hearing-impaired chil-dren with hearing device 2 to 3 years whose correct rate was 57.14%were close to the normal children whose correct rate was 58.93%.The hearing-impaired children with hearing devices 1 to 2 years whose correct rate was 32.5%were worse than the children of other two groups 2 .In the second test,the hearing-impaired children with hearing devices 2 to 3 years whose correct rate was 44.64% were better than the hearing-impaired children with hearing devices 1 to 2 years whose the correct rate was 22.5%.The normal children whose the correct rate was 55.36%were better than the children of other two groups.3.There was no significant difference to correctly memorize a sen-tence between three groups in the first test,but there was significant difference to correctly memorize a sentence between the hearing-impaired with hearing device 1 to 2 years and the hearing-impaired children with hearing de-vice 2 to 3 years (P<0.05),and significant differences also existed between the hearing-impaired with hearing de-vice 1 to 2 years and normal children (P<0.05),but there was no significant difference between the hearing-im-paired children with hearing device 2 to 3 years and normal children (P>0.05).Conclusion The length with hear-ing device strengthens the ability of hearing-impaired children in correctly memorizing a sentence after rehabilitation training.And the content of test affects the result ,it provides reference to the hearing-impaired children's auditory training .

OBJECTIVE: To investigate the effects of Xiehuo Bushen Decoction (XHBSD), a compound Chinese herbal medicine, on the survival and differentiation of transplanted neural stem cells (NSCs) in brains of rats with intracerebral hemorrhage, and to explore the mechanism of Xiehuo Bushen formula in promoting the survival of transplanted NSCs. METHODS: NSCs separated from hippocampuses of neonatal SD rats were cultured. Sixty-five panel reactive antibody (PRA) positive SD rats were selected by lymphocytotoxicity methods. The PRA positive rats were made into intracerebral hemorrhagic model and divided into three groups: cerebral hemorrhage group (n=15), NSCs transplanted group (n=25) and XHBSD group (n=25). XHBSD was orally administered after 5-bromodeoxyuridine (BrdU)-marked NSCs were transplanted in brains of rats with intracerebral hemorrhage in the XHBSD group. Rats in the other two groups were administered distilled water. The expressions of interferon gamma (IFN-gamma) and interleukin-4 (IL-4) mRNAs were measured by reverse transcription polymerase chain reaction (RT-PCR); the numbers of BrdU and 200 kD neurofilament (NF200) positive cells were detected by double-labeling immunofluorescence method. RESULTS: The expression of IFN-gamma mRNA was down-regulated significantly in the XHBSD group, but the expression of IL-4 mRNA was up-regulated significantly (P<0.05). The numbers of BrdU and NF200 positive cells were also increased remarkably in the XHBSD group. CONCLUSION: XHBSD can promote the survival and differentiation of transplanted NSCs, which may be related to inducing the expression of IL-4 mRNA and inhibiting the expression of IFN-gamma mRNA.

Alveolar Bone Loss ; diagnosis ; Alveolar Process ; Humans

Objective To discuss the application value of modified Hodge test(MHT) for screening carbapenemase-producing Enterobacteriaceae.Methods The 24 Enterobacteriaceae reduced susceptibility to carbapenems were detected by MHT.At the same time,polymerase chain reaction(PCR) was used to detect carbapenemase genes of KPC,NDM,IMP,SIM and VIM.PCR products were sequenced and the results were compared with the sequences of Gen Bank database.Comprehensive analysis the application value of MHT and PCR to detect carbapenemase.Results Among these 24 strains,13 stains appeared to produce carbapenemase by MHT,5 positive strains were found to carry carbapenemase genes by PCR.By comparing with the sequences of Gen Bank database 1 strain were confirmed to KPC-2 and 4 strains were confirmed to IMP-4.We found that 4 strains of Enterobacteriaceae,detected carbapenemase by MHT and PCR at the same time.9 strains of MHT were positive,but we couldn′t detect the carbapenemase genes.1 strain of MHT was negative,but carbapenemase gene was found in the strain.Conclusion The value of MHT to screen carbapenemase-producing Enterobacteriaceae is necessary to further study.

Objective: To investigate the correlations of indexes of isokinetic muscle testing with grip, the circumference of muscle, the time up and go test(TUGT), and the distance of 6-minutes walk test(6MWT). And to identify the availability of isokinetic muscle testing in diagnosing sarcopenia in the elderly. Methods: A total of 27 elderly patients with sarcopenia admitted in rehabilitation department of our hospital from Jan.2017 to Dec.2017 were enrolled in this cross-sectional study.Patients were evaluated in many aspects, including comprehensive evaluation by the comprehensive assessment, the skeletal muscle mass detection by dual energy X-Ray absorptiometry, the power of gripping by dynamometer, the circumference of muscle of upper and lower extremities, the muscle strength by isokinetic muscle testing, the sports ability by TUGT and 6MWT. Results: Isokinetic muscle testing including the knee flexion, knee extension, elbow extension, wrist extension, TUGT, 6MWT, the power of left gripping, the circumference of left forearm muscle showed a negative correlations to the age(r=-0.54, -0.44, -0.52, -0.61, -0.53, -0.41 and-0.39, P<0.05). A positive correlation were observed between TUGT and the age(r=0.44, P<0.05). The positive correlations between every index in isokinetic muscles testing and the power of both left and right gripping were observed(r=0.66, 0.67, 0.67, 0.67, 0.56, 0.62, 0.54, 0.54, 0.64, 0.59, 0.59 and 0.56, P<0.05). The knee flexion, knee extension, elbow flexion, elbow extension and wrist extension of Isokinetic muscle testing showed a positive correlations to 6MWT(r=0.71, 0.65, 0.62, 0.60 and 0.59, P<0.05). The knee flexion, knee extension, elbow extension and wrist extension of isokinetic muscle testing showed a negative correlations to TUGT(r=-0.57, -0.52, -0.42 and-0.48, P<0.05). Every index of isokinetic muscle testing showed a positive correlations to the circumference of both forearms(r=0.45, 0.47, 0.52, 0.42, 0.41, 0.44, 0.49, 0.52、0.60, 0.54, 0.44 and 049, P<0.05). Conclusions Isokinetic muscle testing can accurately evaluate the changes of muscle strength in the elderly with sarcopenia.It can be considered as the reference index of motor function in diagnosing sarcopenia in the elderly.

Objective To investigate the clinical manifestations,imaging and pathological features and treatment prognosis of primary renal sarcoma in adults.Methods A retrospective analysis was performed on the clinical data of 48 patients with primary renal sarcoma from January 2009 to December 2018 in the first affiliated hospital and cancer center of Sun Yat-Sen university.There were 30 males and 18 females.Their aged ranged from 27 to 76 yrs with an average age of 50 yrs.A total of 24 patients presented with lumbar and abdominal pain.Abdominal mass was found in 2 cases.Gross hematuria was noticed in 4 cases.Febrile was recorded in 2 cases and 21 cases were diagnosed by physical examination.31 tumors located in the left kidney and 17 tumors located in the right kidney.The tumor diameter ranged from 3 to 16 cm with an average diameter of 8 cm.All patients underwent ultrasound or CT/MRI examination of the urinary system before surgery.The ultrasound showed the undistributed echo inside the tumor with the undistinguished border.The image of necrosis and liquefaction could be seen in some cases.The CT/MRI examination showed the lesion site with the necrosis,liquefaction or cystic changing.The mass exhibited the unregular enhancement with undistinguished border line.The mean diameter of liposcarcoma was 10.2 cm.CT scan demonstrated the relative low density of tumor,which was hard to be identified with AML.The average diameter of leiomyosarcoma was 6.5 cm.The enhanced CT scan showed the low density of tumor,compared with renal parenchyma.46 patients underwent radical nephrectomy,2 patients underwent renal tumor biopsy.And postoperative follow-up was performed.Results Pathological diagnosis revealed that 19 cases with liposarcoma,9 cases with leiomyosarcoma and 4 cases with synovial sarcoma,especially 4 cases with Ewing' s sarcoma and 12 cases with other sarcoma.36 cases were followed up and survived for 4 to 64 months.The average survival time was 28 months.The longest mean survival time was seen in patients with liposarcoma,which was 32 months (ranging 11 to 64 months).The mean survival time of synovial sarcoma group was 25 months (ranging 5-58 months).The mean survival time of Ewing's sarcoma group was 22 months(ranging 12-46 months).and the survival time of leiomyosarcoma group was the shortest 20 months (ranging 4-36 months).Conclusion Renal sarcoma is rare and highly malignant.It needs to be diagnosed with clinical manifestations,imaging and pathological data together.

Objective:To explore the clinical value of peripheral blood lymphocyte subsets in the differential diagnosis of BK virus nephropathy (BKVN) in renal transplantation recipients.Methods:From 2014 to 2018, a total of 172 renal transplant recipients were recruited. Their peripheral blood lymphocyte subsets were detected. According to the pathological puncture results of transplanted kidney, they were divided into acute rejection group (AR, n=68), BKVN group ( n=73) and stable graft function group (STA, n=31). The proportion and absolute number of peripheral blood lymphocyte subsets in each group were measured by flow cytometry and the proportion and absolute count of peripheral blood lymphocyte subsets in each group compared. Results:The proportion and absolute number of CD19 + B cells were markedly lower in BKVN group than those in AR group ( P=0.005, 0.003; 8.5% vs 13.2%, 0.094×10 9/L vs 0.202×10 9/L) and STA group ( P=0.005, 0.003; 8.5% vs 14.8%, 0.094×10 9/L vs 0.198×10 9/L); the proportion of CD3 + CD8 + T cells was significantly higher in BKVN group than that in AR group ( P=0.013; 36.9% vs 31.2%). In addition, no obvious difference existed in the proportion and absolute number of lymphocytes, CD3 + T, CD3 + CD4 + T and CD16 + CD56 + natural killer (NK) among three groups ( P>0.05). No obvious difference existed in the proportion of CD3 + CD4 + / CD3 + CD8 + T cells among three groups ( P>0.05). Conclusions:No difference exists in T cell-related lymphocyte subsets between BKVN and acute rejection recipients. However, the number and proportion of CD19 + B cells decrease markedly in BKVN.

The paper reported a case of a young male patient, with graft-versus-host disease (GVHD) multi-organ involvement lesions after allo-hematopoietic stem cell transplantation. The patient had diverse clinical manifestations, and overlapping acute and chronic disease processes. Acute GVHD were mainly hyperbilirubinemia, with or without elevated transaminase, bloody watery stools; chronic GVHD were highlighted by extensive skin depigmentation, oral mucosal ulcer, sick nails, etc., and chronic signs, such as membranous nephropathy, polyserositis and pulmonary restrictive ventilatory insufficiency. The diagnosis of chronic GVHD mainly relies on medical history combined with clinical manifestations, and it's needed to exclude infections, drugs and tumors. Besides, the rate of missed diagnosis and misdiagnose is high, and it requires multidisciplinary diagnosis and treatment. Combined with the literature review, it indicates that there is a greater risk of GVHD in the male recipient with female donor, and peripheral blood stem cell transplant patients have a higher incidence than bone marrow transplant patients after hematopoietic stem cell transplantation, but the effect of the graft-versus-leukemia exists. Currently, glucocorticoids therapy with or without calcineurin inhibitors are the first-line treatment for GVHD, but the overall prognosis is poor.

Objective:To compare the clinical outcomes and safety of haploidentical donor (HID)and HLA-matched sibling donor(MSD)hematopoietic stem cell transplantation(HSCT)for severe aplastic anemia(SAA).Methods:From January 1, 2012 to December 31, 2019, retrospective review of clinical data was performed for 75 SAA patients undergoing HSCT at Department of Hematology, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology.Based upon donor sources, they were divided into two groups of MSD(49 cases)and HID (26 cases). And two groups were compared with regards to hematopoietic recovery, graft-versus-host disease(GVHD)infection and overall survival(OS).Results:Time of platelet and neutrophil engraftment of two groups was comparable(11 d vs.11 d, P=0.84; 11 d vs.12 d, P=0.08). Compared with HID group, MSD group had a lower incidence of acute GVHD(46.2% vs.18.4%, P=0.01)with a comparable incidence of grade Ⅱ-Ⅳ acute GVHD(26.9% vs.14.3%, P=0.24), grade Ⅲ-Ⅳ acute GVHD(15.4% vs.4.1%, P=0.09)and chronic GVHD(23.9% vs.23.1 %, P=0.71). A reactivation of CMV occurred in 27(55.1%)MSD and 22(84.6%)HID recipients( P=0.01). And the incidence of EB viremia was 69.4% and 61.5% respectively.After a median follow-up period of 54.0 and 18.5 months, the estimated 3-year OS rate of MSD and HID groups were 94.0% and 88.0% respectively ( P=0.35). Conclusions:HID HSCT is an effective and relatively safe option for SAA patients, especially for those in urgent need of treatment without MSD or refractory/relapse to immunosuppressive therapy.

Objective:To analyze the sensitivity and specificity of SARS-CoV-2 nucleic acid testing in 20 348 close contacts of COVID-19 cases in different prevention and control stages in Guangzhou and to provide scientific evidence for optimizing epidemic response strategies.Methods:A total of 20 348 close contacts of COVID-19 cases in Guangzhou were traced between February 21 and September 22,2020. All the close contacts were tested for the nucleic acid of SARS-CoV-2. The sensitivity and specificity of nucleic acid testing and diagnosis in the different prevention and control stages were compared.Results:In 20 348 close contacts, 12 462 were males (61.24%), the median ( P 25, P 75) of age of them was 31.0 years (23.0,43.0), the median number ( P 25, P 75) of nucleic acid testing for them was 2.0 (1.0,3.0), and the median ( P 25, P 75) of their quarantine days was 12.0 (8.0,13.0) days, respectively. A total of 256 COVID-19 cases were confirmed in the close contacts after seven nucleic acid tests. In the 1 st, 2 nd, 3 rd and 7 th nucleic acid testing, the sensitivity and specificity were 69.14% and 99.99% (177 cases confirmed), 89.84% and 99.99% (230 cases confirmed), 97.27% and 99.99% (249 cases confirmed), and 100.00% and 99.98%, respectively. In the three stages of COVID-19 prevention and control in China: domestic case stage, imported case stage, and imported case associated local epidemic stage, the sensitivity of the 1 st nucleic acid testing was 70.68%, 68.00% and 67.35%, and the specificity was 99.98%, 100.00% and 100.00%, respectively. Conclusions:The sensitivity of nucleic acid testing in the close contacts at the different stages were consistent with slight decrease, which might be related to the increased proportion of asymptomatic infections in the late stage of epidemic prevention and control with COVID-19 in Guangzhou. It is suggested to give three nucleic acid tests to improve the sensitivity and reduce false negative risk.