Objective:To compare clinical effects of the open versus closed high tibial osteotomy on knee osteoarthritis.Methods:A total of 100 patients with knee osteoarthritis admitted to our hospital from May 2018 to May 2019 were included.They were randomly divided into groups A and B(n=50, each group)according to the principle of random and double blind.Patients in group A received the medial opening high tibial osteotomy, and group B were treated with lateral closed high tibial osteotomy.The changes in the Lysholm knee score, hospital for special surgery(HSS)knee score and complications were compared between the two groups before and 1 year after surgery.The correction angle, the change of patella height before and after operation, and the change of posterior slope of tibial plateau were compared between the two groups.Results:Before and after treatment, Lysholm scores were(63.51±5.47)and(90.98±5.84)( t=24.275, P=0.000), and HSS scores were(51.85±4.68)and(88.64±5.87)( t=34.652, P=0.000). Lysholm scores were(62.98±6.14)and(91.52±6.54 9)( t=22.497, P=0.000), and HSS scores were(52.05±5.16)and(89.54±5.15)( t=36.362, P=0.000)in group A and B, .After treatment, all index were significantly improved in the two groups, but there was no statistical difference between the two groups( P>0.05). In group A, the posterior slope of tibial plateau were(8.75±1.48)° and(10.25±1.65)°( t=4.785, P=0.000)and the patellar height was(0.890±0.031)and(0.898±0.032)( t=1.270, P=0.207)before and after treatment.Before and after treatment in group B, the posterior slope of tibial plateau were(8.69±1.53)° and(5.26±1.21)°( t=12.434, P=0.000)and the patellar height were(0.889±0.047)and(0.821±0.039)( t=7.873, P=0.000). The correction angle, posterior slope of tibial plateau and patella height were significantly improved after treatment in the two groups.While, the decreases of posterior slope of tibial plateau and patella height were better in the group B than in the group A( P<0.05). There was no significant difference in the incidence of complications between the two groups( P>0.05). Conclusions:For treatment of knee osteoarthritis patients, the medial opening high tibial osteotomy and lateral closed high tibial osteotomy have the same exact effect and high safety, but the two methods have their own advantages and disadvantages in clinical treatment.And the appropriate surgical treatment can be selected according to the characteristics of patients.

ObjectiveTo establish a novel rapid detection method based on PCR-single-strand-conformational polymorphism (PCR-SSCP) to determine mutation of streptomycin-resistance associated rpsL and rrs genes in isolates of Mycobacterium tuberculosis (MTB).MethodsStreptomycin-resistance of 112 MTB isolates was detected using the routine drug susceptibility test,and a special PCR-SSCP assay was established.The mutations of rpsL and rrs genes in streptomycin-resistant MTB isolates were detected by PCR-SSCP and PCR direct sequencing (PCR-DS) ; the results from two techniques were compared.Results All isolates had both rpsL and rrs genes.Fifty-two isolates (46.4％) were streptomycin susceptible,in which only 1 isolate showed abnormal PCR-SSCP fragments from rrs gene,and the specificity of PCR-SSCP was 98.1％ (51/52).Sixty isolates (53.6％) were streptomycin-resistant,in which 46 (76.6％) and 11 ( 18.3％ ) isolates presented the abnormal PCR-SSCP fragments of rpsL and rrs gene,respectively.One streptomycin-resistant isolate showed abnormal PCR-SSCP fragments from both rpsL and rrs genes.The sensitivity of PCR-SSCP was 93.3％ (56/60).ConclusionThe PCR-SSCP that established in this study is a specific and sensitive method for rapid detection of the streptomycin-resistance associated mutations in rpsL and rrs genes of MTB.

Objective To observe the clinical efficacy of electroacupuncture plus nasal irrigation in treating upper airway cough syndrome (UACS).Method A total of 114 UACS patients were randomized into 3 groups, 38 cases in each group. Group A was treated with acupuncture plus electrical stimulation with sparse-dense wave, group B was intervened by nasal irrigation with Shuang Huang Lian, and group C was treated with the two methods together. The clinical efficacies of the three groups were compared.Result The total effective rates were respectively 84.2%, 73.7% and 94.7% in group A, group B and group C. The total effective rate of group C was significantly different from that of group A and group B (P<0.05).Conclusion Electroacupuncture plus nasal irrigation can produce a more significant therapeutic efficacy compared to electroacupuncture or nasal irrigation alone.

Objective To investigate the galectin-3 expression in squamous carcinioma of esophagus and analyze its relationship with clinicopathological characteristics.Methods S-P immunohistochemistry was used to detect the expression of galectin-3 in 80 paraffin-embedded specimens of esophageal carcinoma and 22 specimens of normal tissues adjacent to the benigh lesions of esophagus.RT-PCR was performed to detect galectin-3 mRNA expression in 36 pairs of fresh squamous carcinoma tissues and corresponding adjacent normal mucosa.Results Out of 80 specimens of squamous carcinoma of esophagus,62 specimens had positive expression of galectin-3,with the positive rate of 77.5%(62/80)that was significantly higher than 27.27% in normal esophageal tissues(6/22,P

The research of bone tissue engineering bases on three basic directions of seed cells, scaffold materials and growth information. Stem cells have been widely studied as seed cells. Human urine-derived stem cell (hUSC) is extracted from urine and described to be adhesion growth, cloning, expression of the majority of mesenchymal stem cell markers and peripheral cell markers, multi-potential and no tumor but stable karyotype with passaging many times. Some researches proposed that hUSC might be a new source of seed cells in tissue engineering because of their invasive and convenient obtention, stable culture and multiple differentiation potential.
Bone and Bones ; Cell Differentiation ; Humans ; Mesenchymal Stromal Cells ; Stem Cells ; cytology ; Tissue Engineering ; Urine ; cytology

Objective To compare the effect of glucosamine (Virtral-s) on the cartilage oligomeric matrix protein (COMP) secretion of chondrocytes and synoviocytes in vitro.Methods Chondrocytes and synoviocytes isolated from knee cartilage of osteoarthritic patients were cultured by phased enzymatic digestion.Sera containing Virtral-s of the experimental animals were obtained after orally administrated Virtral-s at the dosages that equal to human.Cells were cultured in the medium with Virtral-s containing sera.Super-natant COMP level was tested by enzyme-linked immunoabsorbent assays (ELISA).Results COMP conceu-tration of synoviocytes cultured in vitro was significantly higher than that of chondrocytes (P＜0.05).Virtral-s could significantly increase COMP secretion in cultured chondrocytes in vitro (P＜0.05),however,it had a weaker role on synoviocytes,ie,it could only mildly reduce COMP secretion of synoviocytes.Conclusion Glucosamine (Virtral-s)-containing serum can promote COMP secretion of chondrocytes in vitro,and it has no significant effect on synoviocytes in vitro.

Objective To observe the clinical response and safety of second-generation tyrosine kinase inhibitor dasatinib in the treatment of Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph + ALL). Methods The clinical data of 10 adult Ph + ALL patients treated with dasatinib were analyzed with review of literatures. Results All the 10 Ph+ ALL patients treated with dasatinib achieved remission in 7 weeks, including 9 cases of complete remission [7 cases achieved complete molecular remission (CRm) in 13 weeks]. The median overall survival time (OS) was 13.8 months (5-33), and the median disease-free survival (DFS) time was 10.8 months (4-25). There were 3 cases of pleural effusion, 4 cases of Ⅳ degree of bone marrow suppression and 6 cases of extremely low blood platelet, which could be that was improved via by symptomatic treatment and, with no case of the death occurred during the treatment of dasatinib, the safety was high. Conclusion Dasatinib can deepen molecular biological reaction and prolonged the survival time of patients in the treatment of adult Ph+ ALL, with high remission rate and safety, and which can be considered as first-line treatment.

Objective:To summarize the main issues, analyze the causes and offer a strategy for AIDS preven-tion and control for all types of healthcare facilities in the health care system. Methods:184 leaders and experts of tertiary-level healthcare facilities ( provinces, cities and counties) from 30 provinces who had been engaged in AIDS prevention and control for more than five years were studied through a questionnaire including the issues and causes in AIDS prevention and control. Results: According to the results of the respondents and experts’ demonstration, the main issues were identified, including a lack of human resources in the system of disease control facilities, a lack of relevant agencies involved in AIDS response, the difficulty for AIDS patients to receive surgery and follow-up, poor detection of HIV, shortcomings in medical insurance, and so on. Conclusion: Based on the analysis of issues and causes, the paper offers strategic solutions: Clearly define the responsibilities of various health institutions in AIDS prevention and control;promote the participation of primary health institutions in AIDS prevention and control; im-prove the medical service system for AIDS patients;improve AIDS medical security policies;reform the management system of antiretroviral therapy drugs;and strengthen technical support from disease control facilities.

Objective To investigate the CT imaging characteristics of primary malignant fibrous histiocytoma (MFH) of the liver.Methods The CT, clinical and histopathologic data of 6 patients with MFH were analyzed retrospectively.All the cases were confirmed by surgery and histopathological examinations.Results The tumors were located in the right liver in 4 patients and the left liver in 2 patients.The maximum diameter of the tumors ranged from 5 to 20 cm.All the tumors were unevenly hypodense on plain CT scan.Four tumors had relatively well-defined margins, while 2 tumors had ill-defined margins.After contrast enhancement, the peripheral and internal divisions of the three storiform-pleomorptic MFH showed progressive enhancement.The peripheral and internal divisions of the two inflammatory MFH were obviously enhanced in the arterial phase, and the enhancement decreased in the portal and delayed phases.The hypodense areas of the one myxiod MFH were not enhanced, but the internal floc and divisions were progressive enhanced.On gross pathology, the tumors were round or irregular in shape, most had a complete capsule with multiple surrounding vessels.These findings correlated well with the CT findings.Conclusions CT findings of primary Hepatic MFH have some characteristics.The enhancement pattern is manifested in a fast wash-in and slow wash-out pattern.However, the final diagnosis still relies on histopathological examination.

Objective To investigate the clinical efficacy of integrated Chinese and western medicine for the treatment of anovulatory dysfunctional uterine bleeding. Methods A total of 108 anovulatory dysfunctional uterine bleeding patients were evenly randomized into treatment group and control group. Both groups were given basic conventional treatment, estrogen-progestogen sequential therapy for 3 menstrual cycles for dysfunctional uterine bleeding patients at puberty and child-bearing period, and Marvelon for patients at menopause transition period after excluding uterine tumor by diagnostic curettage. Additionally, the treatment group was given Chinese herbal decoction of Radix Rehmanniae Preparata, Semen Cuscutae, Fructus Corni, Placenta Hominis, Herba Ecliptae, Fructus Schisandrae Chinensis, Rhizoma Alismatis, raw Rhizoma Dioscoreae, Rhizoma Atractylodis Macrocephalae, Rhizoma Cyperi, Radix Codonopsis, Radix Astragali, Radix Angelicae Sinensis, Radix Paeoniae Alba, Pericarpium Citri Reticulatae, and charred Herba Schizonepetae. Therapeutic effect, bleeding-arresting time, and recurrence rate during 3-month follow-up were observed in the two groups. Results ( 1) The treatment group had a total effective rate of 100.0%, higher than 94.4%in the control group, the difference being significant (P<0.05). (2) Bleeding-arresting time was (45.50 ± 13.0) hours in the treatment group and was (58.0 ± 15.0) hours in the control group, and the difference was statistically significant (P<0.05). (3) During the 3-month follow-up, the treatment group had the recurrence rate of 16.7% ( 9 cases) , lower than 29.6% ( 16 cases) in the control group, and the difference was statistically significant ( P<0.05). Conclusion Integrated Chinese and western medicine has certain effect for the treatment of anovulatory dysfunctional uterine bleeding, showing good prospects for extensive application in gynecological clinic.