BACKGROUND:How to avoid denervated muscular atrophy is a key factor to improve the therapeutic efficacy on peripheral nerve injuries. OBJECTIVE:To study the effect of basic fibroblast growth factor (bFGF) gene-transfected bone marrow mesenchymal stem cels against denervated muscle atrophy. METHODS: bFGF genes were transfected into rat bone marrow mesenchymal stem cels using viral transfection method, and then MTT, immunohistochemical staining, hematoxylin-eosin staining, RT-PCR, western blot, and ELISA methods were used to detect the transfection efficiency and product expression. Thirty-two Sprague-Dawley rats were selected to make animal models of sciatic nerve injury, and subjected to multi-point intramuscular injection of bFGF-transfected bone marrow mesenchymal stem cels (experimental group) or cel culture fluid (control group). At 2, 4, 6, 8 weeks after transfection, the gastrocnemius muscle tissues were harvested to detect action potential, residual wet weight, and cross-sectional area of muscle fibers. RESULTS AND CONCLUSION:The bFGF gene was successfuly transfected into bone marrow mesenchymal stem cels using the viral transfection method. The residual wet weight, cross-sectional area and residual action potential of the gastrocnemius muscle were significantly better in the experimental group than the control group (P < 0.05). These findings indicate that bFGF gene-transfected bone marrow mesenchymal stem cels transplanted into the denervated muscle can retard the development of muscle atrophy. Cite this article:Yu N, Wang YS, Qi CP.Application of basic fibroblast growth factor gene-transfected bone marrow mesenchymal stem cels in denervated muscle atrophy. Zhongguo Zuzhi Gongcheng Yanjiu. 2016;20(1):89-94.

Objective To explore the effects of different initial treatment protocols on the prognosis of pneumonia in the kidney transplant recipients. Methods Sixty-seven cases of pneumonia following kidney transplantation were divided into case group (34 cases) and control group (33 cases).The patients in case group were treated with Imipenem and Cilastatin, SMX/TMP and ganciclovir,and those in control group received routine treatments. Mortality and length of stay in hospital (LOS)were analyzed. Results Mortality (5.9 % ) and LOS (15 days) in case group were reduced as compared with those in control group ( 18. 2 %, 23 days, respectively) (P＜ 0. 05). Among the patients without severe pneumonia, the mortality and incidence of LOS beyond 21 days in case group (3. 4 %, 1/29; 3. 4 %, 1/29) were lower than those in control group (17. 2 %, 5/29; 37. 9 %, 11/29, respectively) (P＜0. 05). Whether the patients were admitted to hospital sooner or later, the incidence of LOS beyond 21 days in case group was lower than that in control group (P＜0. 05).Whether the etiologies were determined or undetermined, the incidence of LOS beyond 21 days in case group was lower than that in control group (P＜0. 05). The incidence of LOS beyond 21 days in case group was lower than that in control group among the patients with cardiopulmonary disease (P＜0. 05). Conclusion The initial appropriate treatment would improve the prognosis of pneumonia in the kidney transplant recipients.

Objective To study the efficacy of sacral nerve stimulation combined with tolterodine in patients with female idiopathic overactive bladder (IOAB).Methods A total of 200 female patients diagnosed with IOAB from January 2005 to January 2011 were included in the study,and according to random number table method were divided into treatment group and control group with 100 cases in each.Each group was divided into 3 subgroups according to urinary frequency and urgency,urge incontinence,and both of them together.In the treatment group,patients received percutaneous sacral nerve stimulation and tolterodine 2 mg orally,1 time/d,while in the control group,only given tolterodine 2 mg orally,1 time/d,treatment for 3 months.The voiding diary and urodynamics parameters were observed between the two groups before and after treatment and application of self-rating depression scale (SDS) and self-rating anxiety scale (SAS) to evaluate the psychology of concomitant depression and anxiety score.Results After treatment,the average number of urination,daily average unit urine,the single biggest urine and urine feel capacity (FDV),the maximum capacity of the bladder pressure (MCBC),maximum urinary flow rate (Qmax) in two groups were improved,and the daily average unit urine,single biggest urine and FDV,MCBC,Qmax in treatment group after treatment were higher than those in control group [daily average unit urine:urinary frequency and urgency (248 ± 46) ml/times vs.(150 ± 77) ml/times,urge incontinence (249 ± 69) ml/times vs.(144 ± 81) ml/times,both of them together (247 ± 69) ml/times vs.(170 ± 46) ml/times; the single biggest urine:(320 ± 87) ml/times vs.(212 ± 44) ml/times,(315 ± 65) ml/times vs.(211 ± 56) ml/times,(333 ±59) ml/times vs.(201 ±66) ml/times;FDV:(176 ±64) ml vs.(142 ±44) ml,(190 ±69) ml vs.(142±55) ml,(188 ±60) mlvs.(138 ±49) ml;MCBC:(265 ±46) ml vs.(203 ±50) ml,(288 ±48) ml vs.(197 ± 41)ml,(287 ± 43) ml vs.(189 ± 44) ml],there were significant statistical differences (P ＜ 0.01).The SDS and SAS scores were reduced in two groups after treatment,and the SDS and SAS scores in treatment group after treatment were significantly lower than those in control group [SDS scores:urinary frequency and urgency (33.0 ± 6.2) scores vs.(44.0 ± 5.9) scores,urge incontinence(31.1 ± 6.2) scores vs.(41.6 ± 6.1) scores,both of them together(33.4 ± 7.2) scores vs.(44.5 ± 5.0)scores;SAS scores:(30.3 ± 4.4) scores vs.(41.3 ±4.4) scores,(33.3 ±5.8) scores vs.(42.5 ±6.4) scores,(31.9 ±4.7) scores vs.(43.5 ± 5.6) scores],there were significant statistical differences (P＜ 0.01).Conclusions The combined treatment of tolterodine and sacral nerve stimulation can not only improve the voiding dysfunctions symptoms but also the concomitant depression and anxiety in patients with female IOAB,thus improving the patient's quality of life.

Objective To evaluate the clinical efficacy of retroperitoneal laparoscopic nephroureterectomy (RLNU) combined with transurethral electric coagulation on upper urinary tract urothelial carcinoma (UUTUC).Methods Sixty UUTUC patients were enrolled from Jun.2012 to Apr.2013.The prospective clinical controlled analysis method was adopted in this study.All patients were divided into test group and control group according to the order of admission.Thirty cases (test group) underwent RLNU combined with electric coagulation,and 30 cases (control group) underwent RLNU combined with electric resection.The differences in operation time,blood loss,hospital stay and tumor recurrence rate between the 2 groups were compared.Results All the 60 operations for UUTUC were successful without conversion to open surgery.No intraoperative complications such as great vessels or surrounding organs damage occurred.There were 2 cases loss to follow-up in test group and 3 cases in control group.There were no significant differences in operation time,blood loss,follow-up time,tumor stage and tumor grade between the 2 groups.The hospital stay in the test group was shorter (5.5±2.0 d versus 7.1±2.2 d),the tumor recurrence rate was lower [4％ (1/28) versus 30％ (8/27)],and the differences were significant (P＜0.05).Conclusion Compared with RLNU combined with transurethral electric resection,RLNU combined with electric coagulation has advantages of shorter hospital stay and lower tumor recurrence rate.

Objective To investigate the clinical features of SAPHO syndrome.Methods Clinical data of 22 cases of SAPHO syndrome were analysed.Results There were 7 males and 15 females among the 22 patients.The average age at onset of cutaneous and osteoarticular lesions was 45 years and 44 years, respectively.Of the 22 patients,21 had palmoplantar pustulosis and 1 had acne fulminans.Anterior chest wall (ACW) was involved in 19 patients,peripheral joints in 4 patients and sacroiliac joints in 2 patients.Osteoarticular manifestations occurred prior to the onset of skin lesions in 10 cases.after that in 9 cases,and simultaneously in 3 cases.The mean interval between the onset of cntaneous and osteoarticular lesions was 2.7 years and the longest interval was 20 years.Conclusions Middle-aged females predominate in patients with SAPHO syndrome seen in dermatological clinics.Palmoplantar pustulosis and ACW involvement are the most common clinical manifestations of SAPHO syndrome.

Objective To study the relationship between inflammation and malnutrition in patients with stable chronic obstructive pulmonary disease (COPD).Methods A total of 85 patients with stable COPD and 30 healthy subjects were recruited .All patients were divided into the lower body mass index (BMI,BMI<18.5 kg/m~2) group and normal BMI (BMI=18.5-23.9 kg/m~2) group.Lung function,arterial blood gall,cell differenti-als in induced sputum,and the levels of serum C-reactive protein (CRP),interleukin-8(IL-8),interleukin-6 (IL-6),interleukin-10 (IL-10),and tumor necrosis factor-α(TNF-α) were determined.Results The levels of total cell count and neutrophils in induced sputum were significantly higher in lower BMI group than in normal BMI group and healthy subjects (P<0.05).The forced expiratory volume in 1 second percentage,forced expiratory volume in 1 second/forced vital capacity,and arterial oxygen tension were significantly lower in lower BMI group than in normal BMI group,and the arterial carbon dioxide tension was significantly higher in lower BMI group than in normal BMI group (P<0.05).The levels of serum CRP,IL-8,IL-6,and TNF-α were significantly higher in lower BMI group than those in normal BMI group and healthy subjects (P<0.05).In lower BMI group,BMI was negatively correlated with total cell count (r=-0.492,P=0.0038) and neutrophils (r=-0.501,P=0.0032) in induced sputum and the levels of serum CRP (r=-0.473,P=0.0083),IL-8(r=-0.382,P=0.0421),IL-6(r=-0.422,P=0.0147),and TNF-α(r=-0.416,P=0.0156),respectively.Conclu-sion Local and systemic inflammatory reaction is responsible for malnutrition associated with COPD.

Objective To explore the relationship between pulmonary arterial hypertension (PAH)associat-ed with chronic obstructive pulmonary disease (COPD) and inflammatory reaction(inflammatory cell, bs CRP, IL-8 and TNF-α). Methods According to echocardiography results, the patients (systolic pulmonary artery pressure, SPAP>30 mm Hg) were divided into PAH group(n=36), single COPD group(n=32). All of the patients and 30 healthy subjects (control group) were recruited into the study. Lung function, arterial blood gases, cell differentials in induced sputum, and the levels of serum high sensitivity CRP(hs-CRP), IL-8, TNF-α were determined. Results The incidence of PAH associated with COPD were 53% (36/68),including 27% (3/11) of mild PAH,38% (5/13) of moderate PAH and 64% (28/44) of severe PAH and there were significantly differences in the severity of the spirometric abnormality (χ26.020, P<0.05). The mean PASP and right ventricle wall thickness (RVWT) in PAH group were significantly greater in the patients compared to single COPD[PASP: (52±15)mmHg in PAH group and (23±12) mm Hg in single COPD group, t=3.32,P<0.01 ; PVWT: (5.03±1.04 )mm in PAH group and (3.78±0.57)nun in single COPD group, t=2.36, P<0.05]. The levels of total cell count and neutrophils in induced sputum,hs-CRP,IL-8 and TNF-α in PAH group were higher than those in single COPD group and healthy subjects[toal cell count: (2.84±0.56)×109/L in PAH group and (1.73±0.42)×109/L in single COPD group and (0.68±0.21)×109/L in control group; neutrophils: (2.78±0.52)×109/L in PAH group and (2.57± 0.26)×109/L in single COPD group and (0.63±0.21 )×109/L in control group; hs CRP: (32±12) mg/L in PAH group and (23±11)mg/L in single COPD group and (11±4)mg/L in control group; IL-8: (113±34) ng/L in PAH group and (69±24) ng/L in single COPD group and (38±11) ng/L in control group; TNF-α: (206±63)ng/L in PAH group and (153±54)ng/L in single COPD group and (75±26)ng/L in control group (P<0.05)]. PASP in PAH group was negatively correlated with FEV<,1>% (r=-0.48,P<0.01) and was positively correlated with the levels of serium IL-8 and TNF-α, neutrophils in induced sputum respectively(r=0.43,0.56,0. 47,P<0.01). Conclusion Inflammation reaction is responsible for PAH associated with COPD.

OBJECTIVETo investigate the molecular and functional changes in L-type Ca2+ channel of hypertrophied cardiomyocytes in neonatal rats induced by angiotensin II (Ang II).

METHODSThe in vitro model of cardiomyocyte hypertrophy was established in cultured cardiomyocytes from neonatal rats. Whole cell patch clamp was used to measure the L-type Ca2+ currents. Semi-quantitative RT-PCR was used to determine the mRNA expression of L-type Ca2+ channel alpha1C subunits.

RESULTSIn the hypertrophied cardiomyocytes induced by Ang II, I(Ca, L) densities were increased, whereas the features of I(Ca,L) activation, inactivation or recovery from inactivation were not affected. Meanwhile, Ang II increased the mRNA expression of L-type Ca2+ channel alpha1C subunits in cardiomyocytes. All these actions of Ang II could be blocked by the angiotensin II 1 type receptor blocker losartan.

CONCLUSIONDuring cardiomyocyte hypertrophy induced by Ang II, there are significant changes in the molecule and function of L-type Ca2+ channels, which are mediated by the angiotensin II 1 type receptor.

Angiotensin II ; adverse effects ; Animals ; Calcium ; metabolism ; Calcium Channels, L-Type ; metabolism ; Female ; Hypertrophy ; metabolism ; Male ; Membrane Potentials ; Myocytes, Cardiac ; metabolism ; pathology ; physiology ; Rats ; Rats, Sprague-Dawley

Objective To investigate the diagnostic value of prenatal ultrasonography and magnatic resonance imaging in the fetal intracranial hemorrhage. Methods The 20 antenatal diagnosed ICH cases was collected from 31 200 prenatal diagnosis units in Guangzhou Women and Children′s Medical Center from July 2012 to June 2014. Maternal characteristics, ultrasound, and magnetic resonance imaging findings, clinical course, and postnatal outcome were reviewed. Results Twenty consecutive cases of fetal ICH were evaluated. All cases were diagnosed at mid or third trimester. Transabdominal ultrasound showed 9 cases of hyper echoic lesions in the lateral ventricle, 2 cases of hypoechonic lesions, 2 cases of irregular mixed echo in the parenchyma, 1 case of hyperechoic cerebellar hemisphere with infarction, and 1 case of abnormal choroid plexus. Seventeen cases were associated with ventriculomegaly, brain compression or brain midline displacement. MRI showed the nodular, patchy or linear low signal on T2WI and high signal on T1WI. Some cases were combined with cortex lesions or abnormal parenchyma. ICH was complicated with other structural abnormalities:1 case of cleft palate, 2 cases of spinal deformity and 3 cases of other cerebral cortical malformations. Prenatal diagnosis results were:2 cases diagnosed as positive cytomegalovirus infection and no chromosome abnormalities found in all cases. The follow up results were:1 case was lost, 16 cases were terminated after prenatal diagnosis. Among the 3 survival cases, 1 case has the neurological complication and the other two were normal till now. Conclusions Fetal intracranial hemorrhage has some image features on ultrasound and magnetic resonance. Ultrasound showed hyper echoic lesions with ventriculomegaly. MRI showed the nodular, patchy or linear low signal on T2WI and high signal on T1WI. MRI may contribute to the accuracy of diagnosis, particularly in bleeding site. The regular ultrasonic monitoring is helpful to improve the detection rate.

Objective: To understand the basic characteristics, sexual behavior and the use of recreational new drugs of young men who have sex with men (MSM) in Tianjin, and to explore the characteristics of young MSM who use recreational drugs, so as to provide reference for the policy making of HIV/AIDS prevention and control in universities. Methods: From January 1, 2018, solstice to December 31, 2018, participants were recruited in the bathrooms, bars and social network sites in Tianjin by snowball sampling. The basic demographic information, sexual behavior and recreational drug use of the participants were collected through face to face interviews and questionnaires. Logistic regression was used to analyzed the characteristic differences drug users and non users among young MSM. Results: A total of 826 young MSM were included in the study, 32 were infected with HIV, and the overall prevalence rate was 3.87 %. Totally 371 (44.92%) were drug users. Rush Poppers were the most common used drug ( 98.65 %). Of the young MSM using new drugs, 306 (82.48%) multiple drugs were used, 65 people ( 17.52 %) only one drug has been used. Among new drug users, multiple drug users had higher HIV prevalence rate (16.92%) than single drug users (4.57%). There were statistically significant differences between drug users and non users in age, age of first sexual behavior, household registration, sexual orientation, education level, sexual partners seeking routes, unprotected anal intercourse and HIV testing history( OR=3.70，5.51，0.51，0.60，4.64，0.40，0.52，1.98，2.29，P <0.05). Conclusion The utilization rate of recreational drugs among young MSM in Tianjin was high. Relevant departments should strengthen the propaganda of recreational drugs and HIV prevention among college students, improve the sexual health awareness of young MSM, and establish a long term HIV and recreational drug prevention system.