ObjectiveTo investigate the relationship between nephrogenic rests and the genetic steps occurring in the development of Wilms' tumor.MethodsThirteen Wilms' tumor with nephrogenic rests were microdissected from paraffin sections.Using polymerase chain reaction-based polymorphic markers,the loss of heterozygosity (LOH) or the putative tumor suppressor genes were studied at 11p13,11p15 and 16q LOH loci.ResultsLOH was detected in two cases at 11p13 and in three cases at 11p15,and in one of these cases LOH at both loci.All rests showing LOH also showed LOH in the tumor.Two cases showing LOH at 16q were identified only in the tumor but nor in the associated rest,and they had recurrence of the tumor.ConclusionsThis study suggests that LOH at 11p13 and 11p15 mutations are the early events whereas LOH at 16q occurs late in the pathogenesis of Wilms' tumor denoting a multistep model of Wilms' tumor pathogenesis.

Objective To evaluate the efficacy and safety of centella triterpenes cream(R) for treating crow's feet.Methods A double-blind,randomized,vehicle-controlled 12-week study was conducted.Centella triterpenes cream(R) was applied to the lateral canthus on one side (treatment side) and vehicle-(c)ontrol cream to the lateral canthus on the other side (control side) 3 times daily.Efficacy was evaluated based on an investigator-blinded assessment,subject self-blinded assessment and a quantitative analysis by Visioscan(R)VC98 at the baseline,4,8,12 weeks after the beginning of treatment.Results Thirty-six volunteers were recruited and 35 subjects completed the 12-week trial.The investigator-blinded assessment showed a significant difference in the changes of wrinkle scores between the treatment side and control side after 4 weeks (P ＜ 0.05),and the improvement of wrinkles was more obvious on the treatment side than on the control side at 8 and 12 weeks with a statistical difference in the wrinkle scores (both P ＜ 0.05).Compared with the control side,a significant increase in SEw value,which suggested an improvement in wrinkles,was observed on the treatment side after the application of centella triterpenes cream(R).Subjects' assessments revealed no significant difference in the occurrence of irritation or the improvement of coarse wrinkles,whereas the treatment side was superior to the control side in the improvement of skin texture (P ＜ 0.05) at the lateral canthus.Conclusion Centella triterpenes cream(R) thrice daily is effective for the improvement of crow's feet with no obvious side effects.

Objective To study the effect and the mechanism of vitamin A deficiency (VAD) on neoplasia of nephroblastoma induced by dimethylhydrazine dihydrochloride (DMH). Methods A total of 90 Wistar rats weighing 40-50 g were divided into 3 groups:normal diet (ND) group (n=30),VAD group (n=30) and control group (n=30).In ND and VAD groups, 0.35% DMH was injected subcutaneously and the animals were fed with normal diet in ND group, and with vitamin A deficient diet in VAD group.In control group,the animals were fed with normal diet without DMH. The incidence of nephroblastomas and nephrogenic rests (NRs) in 3 groups were recorded. The renal tissues were prepared for detection of DNA index (DI) and S fraction of cell cycle by FCM,and for RAR? mRNA expression by RT-PCR.The incidence of nephroblastomas and NRs were determined according to Beckwith diagnostic criteria. Results No tumor developed in control group; the incidence of nephroblastoma in VAD group (36.7%) was significantly higher than that of ND group (13.3%,P

A retrospective review of 47 patients underwent closed mitral commissurotomy(CMC) was conducted. It was revealed that the post-operative color echocardiography indices (MVA ,MVG,CO) were significantly improved compared with those of pre-operation (P8 had NYHA class Ⅰ-Ⅱ in 5 years(P

OBJECTIVE:To prepare Xiaoyanzhiyang lotion,conduct determinations of the preparation and observe its clinical,therapeutic effects.METHODS:It was prepared into pulveres as per the compositions of the formula,determined on its physicochemical properties and identified with TLC.108 patients with typical dermatitis and eczema were randomized into the treatment group(65 cases)and the control group(43 cases).The treatment group was given Xiaoyanzhiyang lotion,2～ 3 times? d-1,and the control group was treated with Kenacomb ointment,2～ 3 times? d-1,each for a treatment course of 1wk.RESULTS:The overall effective rates for the treatment group and the control group were 98.5% and 88.4% respectively,with the former having significantly higher rate than the latter(P

Objective To investigate the predictive value of neutrophil to lymphocyte ratio (NLR) on admission for early neurological deterioration (END) in patients with lacunar stroke.Methods Patients with acute lacunar stroke admitted to the Department of Neurology,the Second People's Hospital of Lianyungang from June 2015 to October 2017 were enrolled retrospectively.END was defined as an increase of ≥2 in the National Institutes of Health Stroke Scale (NIHSS) score within 72 h of admission.Multivariate logistic regression analysis was used to determine the independent risk factors for END.The receiver operating characteristic (ROC) curve was used to analyze the predictive value of NLR for END in patients with lacunar stroke.Results A total of 309 patients with acute lacunar infarction were enrolled,including 180 males (58.2％),aged 59.7 ±7.3 years;65 patients (21.0％) in END group and 244 (79.0％) in non-END group.Multivariate logistic regression analysis showed that after adjusting for other confounders,NLR was an independent risk factor for END in lacunar stroke (odds ratio 4.508,95％ confidence interval 3.128-7.547;P＜0.001).ROC curve analysis showed that the area under the curve of NLR predicting END in patients with lacunar stroke was 0.725 (95％ confidence interval 0.671-0.776;P ＜ 0.001);the optimal cut-off value was 2.32,the sensitivity of predicting END was 61.21％,and the specificity was 72.54％.Conclusion The elevated NLR after admission is an independent risk factor for END in patients with lacunar stroke,which has certain value for early identification and prediction of END.

Objective To explore methods for performance appraisal of directors of municipal hospitals in Shanghai.Methods To assess the management performance of directors of 24 tertiary hospitals each year,measured by five dimensions of social satisfaction,management efficiency,capital operation,development sustainability and staff satisfaction,and 23 indexes.Results Implementation of the performance appraisal has witnessed constant improvement of patient satisfaction and quality of medical care,as well as rational control of medical expenses and cost.In 2014 for example,the cost of emergency/outpatients per visit at such hospitals were 312 yuan and 1 5 600 yuan per hospitalization respectively,with 7.6 days of stay in average.Also improved were service efficiency,clinical research output and hospital business performance in general.Conclusion Performance appraisal of directors of public hospitals proves an important means for guiding the hospitals to adhere to public welfare, consistent with the government medical institution operation target, and to strengthen internal management of such hospitals.

Objective:To investigate the correlation between heart rate variability (HRV) and the progression of Parkinson's disease (PD).Methods:A total of 78 patients with PD who received treatment at the Second People's Hospital of Lianyungang from January 2020 to May 2022 were included in this study. According to Hoehn-Yahr (H&Y) staging, patients with PD were divided into three subgroups: mild PD group (H&Y stage < 2), moderate PD group (2 ≤ H&Y < 3), and advanced PD group (H&Y ≥ 3). Another 66 healthy people who concurrently underwent physical examinations in the same hospital were included in the control group. A dynamic electrocardiogram examination was performed in each group for HRV analysis. The Spearman test was used to analyze the correlation between HRV parameters, disease course, and H&Y staging.Results:Standard deviation of all sinus R-R intervals during 24 hours (SDNN), root mean square of successive RR interval differences during 24 hours (RMSSD), percentage normal-to-normal interval deviation greater than 50 ms (PNN50%) during 24 hours, high frequency component (HF), and low frequency component (LF) in the PD group were (94.76 ± 21.65), (23.41 ± 8.67), (3.50 ± 4.32), (96.57 ± 53.84), and (124.92 ± 82.43), respectively, which were significantly lower than (115.65 ± 13.31), (32.48 ± 8.08), (5.61 ± 5.25), (109.11 ± 39.51), and (143.95 ± 72.77) in the control group ( Z = -6.17, -6.22, -3.90, -2.14, -2.53, all P < 0.05). Disease duration, H&Y staging, and the LED level in the mild PD, moderate PD, and advanced PD groups showed an upward trend (all P < 0.05). The Mini-Mental State Examination (MMSE) score in the advanced PD group was significantly higher than that in the mild PD group ( P < 0.05). There was no significant difference in MMSE score between the mild and moderate stages and between moderate and advanced stages ( P > 0.05). Both SDNN and LF in the mild PD group were (110.61 ± 18.53) and (192.02 ± 95.98), respectively, which were significantly lower than (91.97 ± 15.23) and (113.29 ± 56.71) in the moderate PD group ( t = 4.18, 3.55, both P < 0.01). SDNN and LF in the advanced PD group were (80.90 ± 21.03) and (68.10 ± 44.86) respectively, which were significantly lower than those in the moderate PD and advanced PD groups ( t = 4.88, 2.23, 5.54, 3.26, all P < 0.05). There were no significant differences in RMSSD, PNN50%, and HF among the mild PD, moderate PD, and advanced PD groups (all P > 0.05). SDNN and LF were negatively correlated with PD course ( r = -0.36, -0.37, both P < 0.05) and H&Y staging ( r = -0.46, -0.49, both P < 0.05). Conclusion:Sympathetic dysfunction in PD patients is closely related to the onset and progression of PD, and it can reflect the severity of the disease.

OBJECTIVETo detect the expression of transient receptor potential canonical 1 (TRPC1) in a mouse model of ozone-induced lung inflammation and explore its role in lung inflammation.

METHODSIn a mouse model of lung inflammation established by ozone exposure, the expression of TRPC1 in the inflammatory lung tissues was detected by RT-PCR, Wstern blotting and immunohistochemistry.

RESULTSCompared to the control mice, the mice exposed to ozone showed significantly increased expression level of TRPC1 mRNA and protein in the inflammatory lung tissues (P<0.05). Immunohistochemistry showed increased TRPC1 protein expressions in the alveolar epithelial cells, bronchial epithelial cells, and inflammatory cells in the inflammatory lung tissues (P<0.05). The mRNA and protein expression levels of TRPC1 were positively correlated with the counts of white blood cells, macrophages, neutrophils and lymphocytes in the bronchoalveolar lavage fluid of the exposed mice (P<0.01).

CONCLUSIONTRPC1 may play a role in ozone-induced lung inflammation in mice.

Animals ; Bronchoalveolar Lavage Fluid ; Disease Models, Animal ; Gene Expression ; Inflammation ; pathology ; Lung ; metabolism ; pathology ; Mice ; Ozone ; adverse effects ; Pneumonia ; metabolism ; pathology ; RNA, Messenger ; TRPC Cation Channels ; metabolism

OBJECTIVE To investigate the pharmacological components and mechanism of Qingre huoxue decoction in improving myocardial ischemia-reperfusion injury（MIRI）. METHODS Forty-two rats were randomly divided into sham operation group （normal saline）， model group （normal saline）， Qingre huoxue decoction low-dose， medium-dose and high-dose groups （4.94， 9.88， 19.79 g/kg），Qingre huoxue decoction drug-containing serum group （19.79 g/kg） and blank serum group （normal saline）， with 6 rats in each group. Each group was given corresponding drug/normal saline intragastrically， once a day， for consecutive 2 weeks. Twelve hours after last administration， except for serum groups， MIRI model was induced in other groups （only threading without ligation in sham operation group）. After modeling， cardiac histopathology was observed and apoptosis level was detected. UPLC-MS was used to analyze the samples in Qingre huoxue decoction drug-containing serum group and blank serum group. The main pharmacological components were screened with the help of relevant databases. Multivariate statistical methods were used to analyze the differential metabolites and related metabolic pathways. Validation test was performed based on oxidative stress indicators. RESULTS Qingre huoxue decoction could improve the pathological injury of cardiac tissue and decrease apoptosis rate of cardiac cells in MIRI model rats （P＜0.05）. Qingre huoxue decoction drug-containing serum contained 20 main pharmacological components such as baicalin， succinic acid， baicalein， cryptotanshinone， isoferulic acid， protocatechuic aldehyde. Qingre huoxue decoction could significantly up-regulate the levels of 15 metabolites including L-arginine， L-arginine， citric acid， glutathione， β-D- glucose and L-carnitine， and down-regulated the levels of 14 metabolites including arachidonic acid， 3-phosphate-d-glycerol phosphate， linoleic acid， docosahexaenoic acid， phosphatidylcholine and lysophosphatidylcholine （P＜0.05）. These metabolites were mainly involved in energy metabolism， inflammatory injury， oxidative stress and autophagy. Results of validation tests showed that Qingre huoxue decoction could significantly reduce the levels of malondialdehyde， and increased the levels of superoxide dismutase （except for low-dose group） and glutathione peroxidase significantly （P＜0.05）. CONCLUSIONS Qingre huoxue decoction can improve the injury of cardiac tissue in MIRI model rats. Its pharmacological components include baicalin， cryptotanshinone， isoferulic acid， protocatechualdehyde， etc. Furthermore， it may play a protective role in MIRI by improving myocardial energy metabolism， down-regulating oxidative stress， inhibiting inflammation infiltration.