Objective To evaluate the clinical effect and safety of retroperitoneal laparoscopic partial nephrectomy in treatment of patients with T1b renal carcinoma.Methods Fourteen patients (11 males and 3 females) with T1b renal carcinoma were retrospectively performed.The age of patients was (54.5 ± 9.2)years old,with 8 cases on the left side and 6 cases on the right side.Tumor diameter was (5.1±1.3) cm.All the patients received retroperitoneal laparoscopic partial nephrectomy.Results None of the 14 cases was converted to open surgery.The operation time was (112.0 ± 24.7) min,the intraoperative blood loss was (64.6 ± 15.9) ml,the warm ischemia time was (26.5 ± 9.3) min.The 14 patients were not blood transfusion in intraoperative and postoperative.Postoperative negative pressure drainage placement time was (3.1 ± 1.5)d,lying in bed time was 72 h.Serum creatinine increase was found in 1 case postoperative 12 h,others were no severe complications.Postoperative pathology:the incisal margin of 14 cases were all negative,clear cell carcinoma was in 13 cases,the pathology stage was T1bNoM0;angiomyolipoma of kidney was in 1 case.All the patients were follow-up 3-16 (21.4 ± 9.6) months,all the patients had normal renal function and had no tumor recurrence or metastasis.Conclusion Retroperitoneal laparoscopic partial nephrectomy is safe and reliable for treatment of patients with T1b renal carcinoma.

Acrocephalosyndactylia ; diagnosis ; genetics ; therapy ; Female ; Humans ; Infant

Objective To study the level of serum lipids and body-fat content of high-fat diet induced pbesity rats(DIO).explore the relationship between intracellular caleium and ventrieufar arrhythmia.Methods Sixty male Sprague-Dawley(SD)rats were divided into control group(15)and experiment group(45),high-fat diet was administrated for 12 weeks to established obesity model,15 rats were selected into obesity group according to their body weight gain.The standard 2-lead electrocardiograph was used to detect the incidence and scores of arrhythmia induced by barium chloride(BaCl2,0.1 mg/kg)for 1 hour on every 8 rats from different groups respectively.Body-fat content.the level of serum total cholesterol(TC),triglyceride(TG),low density lipopmtein cholesterol (LDL-C) and high density lipopmtein cholesterol (HDL-C)were measured.The epididymal(EP),retroperitoneal (RE) and mesenteric(ME)white adipose pads was measured to obtain the body fat content.Single ventricular myrocytes of rats were isolated by enzymatic dissociation.The confocal laser scanning microscope was used to record basic intraceUular calcium level([Ca2+]i).Results The body-fat content in obesity group[(7.71±0.74)%] was significantly higher than control group[(4.69±0.37)%](t＝3.650,P＜0.05).The level of serum TC,TGand LDL-C were significantly higher(t＝3.801,2.778,3.536.P＜0.05) in obesity group[(1.26±0.04),(0.58±0.10),(0.51±0.04)mmol/L]than those in control group[(0.92±0.08),(0.29+0.03),(0.31±0.04) mmol/L].The level of serum HDL-C wa8 decreased gradually from control group[(0.53±0.05)mmol/L] toobesity group[(0.52±0.02)mmol/L],but there waft no significant difference between them(t＝0.186,P＞0.05).The incidence of arrhythmia induced by BaCl2(0.1 mg/kg)in obesity group was significantly higher than controlgroup(X2＝5.333,P＜0.05),and the scores of arrhythmla was increased in obesity group(2.5±0.6)too.The fluorescence intensity standing for[Ca2+]i was increased significantly(t＝2.409,P＜0.05)from obesity group(247.96±20.03)to control group (174.25±23.13).Conclusion As the free cytosolic calcium begin to accumulate,the arrhythmia morbidity is increased in obesity rats.

Acute Disease ; Bacteria ; isolation & purification ; Child, Preschool ; Haemophilus influenzae ; isolation & purification ; Humans ; Infant ; Infant, Newborn ; Nasopharynx ; microbiology ; Respiratory Tract Infections ; diagnosis ; microbiology ; Streptococcus pneumoniae ; isolation & purification ; Trachea ; microbiology

OBJECTIVE: Anti-Ro52 antibodies are frequently co-occur with other myositis-specific and myositis-associated autoantibodies, we here to study this phenomenon in Chinese patients suspected with inflammatory myopathies. METHODS: In the study, 1 509 patients clinically suspected with inflammatory myopathies were tested for 11 kinds of myositis-specific and myositis-associated autoantibodies (including: anti-Jo-1, PL-7, PL-12, EJ, OJ, Mi-2, SRP, Ku, PM-Scl 75, PM-Scl 100, and Ro52 antibo-dies) by line-blot immunoassay from 2010 to 2016 in Peking University First Hospital. This retrospective study was to analyze these results to reveal the characteristics of anti-Ro52 antibodies co-occuring with other myositis autoantibodies. The data were analyzed using SPSS 17.0 and Graph Pad PRISM for Chi-square test, independent t-test, Pearson's correlation analysis, and drawing statistical graphs. Significance level was set at P < 0.05. RESULTS: The positive rate of anti-Ro52 antibodies was 18.3% (276/1 509 cases), which was the most frequently detected myositis antibodies in our center. 51.8% (143/276) of the patients with anti-Ro52 antibodies were combined with the other myositis antibodies, and the most common co-occurred antibodies were anti-SRP antibodies (18.8%, 52/276), and the second common co-occurred antibodies were anti-Jo-1 antibodies (13.0%, 36/276). Anti-Ro52 antibodies were the most common antibodies that co-occurred in other myositis antibodies positive patients except in anti-OJ antibodies positive group. The co-positive rate with anti-Ro52 antibodies was the lowest in anti-PM-Scl 75 positive group (30.4%, 31/102), and the highest in anti-EJ positive group (80.0%, 12/15). The positive rate of anti-Ro52 antibodies in anti-synthase antibodies (including anti-Jo-1, EJ, OJ, PL-7, and PL-12 antibodies) positive group was 57.3% (75/131), which was significantly higher than that in the other antibodies (including: anti-Mi-2, SRP, Ku, PM-Scl 75, and PM-Scl 100 antibodies) positive group with 35.2% (119/338) (χ²=18.916, P < 0.001). The intensity of anti-Jo-1, EJ, and SRP antibodies in the group of the patients that co-occurred with anti-Ro52 antibodies was significantly higher than that in the other group without anti-Ro52 antibodies respectively (P < 0.05). The intensity of anti-SRP antibodies was significantly correlated with that of anti-Ro52 antibodies (r=0.44, P=0.001). CONCLUSION Anti-Ro52 antibodies were commonly associated with other myositis-specific and myositis-associated autoantibodies, especially with anti-synthase antibodies, and the co-presence of anti-Ro52 antibodies may be correlated with the myositis antibody intensity.
Autoantibodies ; Correlation of Data ; Humans ; Myositis/epidemiology* ; Retrospective Studies

OBJECTIVETo investigate COX-2 expression in patients with gastric cancer and its relationship with angiogenesis and clinicopathologic features of gastric cancer.

METHODSCOX-2 expression and CD34-stained microvessel density (MVD) were detected by immunohistochemical methods in specimens from 96 patients with gastric cancer. The correlations among COX-2 expression, MVD and clinicopathologic features were analyzed.

RESULTSThe COX-2 positive rate and MVD in gastric cancer were significantly higher than those in the normal gastric mucosa (80.2% vs. 13.3%; 32.5+/- 8.3 vs. 13.1+/- 2.4, all P< 0.01). The COX-2 positive rate and MVD in the patients with stage III and IV were significantly higher (91.4% and 34.9+/- 8.7 respectively, P< 0.01), than that in the patients with stage I and II. The COX-2 positive rate and MVD in the cases with lymph node metastasis were 87.9% and (35.0+/- 8.5) respectively, higher than those in the cases without lymph node metastasis (P< 0.05). The Spearman rank correlation test showed a significant correlation between COX-2 expression and tumor MVD (r=0.311, P< 0.01).

CONCLUSIONSCOX-2 plays an important role in gastric cancer angiogenesis. COX-2 and angiogenesis induced by COX-2 contribute to tumor invasion and lymph node metastasis.

Adult ; Aged ; Cyclooxygenase 2 ; metabolism ; Female ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Neoplasm Staging ; Neovascularization, Pathologic ; metabolism ; pathology ; Stomach Neoplasms ; metabolism ; pathology

In this study, we prepared PLLA/bpV(pic) microspheres, a bpV(pic) controlled release system and examined their ability to protect nerve cells and promote axonal growth. PLLA microspheres were prepared by employing the o/w single emulsification-evaporation technique. Neural stem cells and dorsal root ganglia were divided into 3 groups in terms of the treatment they received: a routine medium group (cultured in DMEM), a PLLA microsphere group (DMEM containing PLLA microspheres alone) and a PLLA/bpV(pic) group [DMEM containing PLLA/bpV(pic) microspheres]. The effects of PLLA/bpV(pic) microspheres were evaluated by the live-dead test and measurement of axonal length. Our results showed that PLLA/bpV(pic) granulation rate was (88.2±5.6)%; particle size was (16.8±3.1)%, drug loading was (4.05±0.3)%; encapsulation efficiency was (48.5±1.8)%. The release time lasted for 30 days. In PLLA/bpV(pic) microsphere group, the cell survival rate was (95.2 ±4.77)%, and the length of dorsal root ganglion (DRG) was 718±95 μm, which were all significantly greater than those in ordinary routine medium group and PLLA microsphere group. This preliminary test results showed the PLLA/bpV(pic) microspheres were successfully prepared and they could promote the survival and growth of neural cells in DRG.
Animals ; Axons ; drug effects ; physiology ; Cells, Cultured ; Delayed-Action Preparations ; chemistry ; pharmacokinetics ; pharmacology ; Drug Compounding ; Female ; Ganglia, Spinal ; drug effects ; metabolism ; physiology ; Immunohistochemistry ; Lactic Acid ; chemistry ; pharmacokinetics ; pharmacology ; Microscopy, Electron ; Microspheres ; Neural Stem Cells ; drug effects ; physiology ; Neurofilament Proteins ; metabolism ; Neurons ; drug effects ; metabolism ; Organometallic Compounds ; chemistry ; pharmacokinetics ; pharmacology ; Polyesters ; Polymers ; chemistry ; pharmacokinetics ; pharmacology ; Pregnancy ; Rats

Pten gene is the first antioncogene with dual phosphatase activity discovered so far, pten gene regulates the cell cycle progress, apoptosis, metastasis and invasion of the tumor cells through negatively regulating the multiple signaling transduction pathways. Multiple myeloma (MM) is a malignant tumor occurring in terminal stage of B cell differentiation. The genetic changes are considered as the important factors in MM pathogenesis, among which the deletion of antioncogene is a critical genetic change. However, little is known about the genetic change of pten in MM. This review summarizes the research advance on pten in MM including structure of pten, mechanism of pten effect and correlation of pten with MM in order to provide some references for the investigating new gene target to treat the MM.
Humans ; Multiple Myeloma ; metabolism ; therapy ; PTEN Phosphohydrolase ; genetics ; metabolism ; Signal Transduction

OBJECTIVETo investigate the relationship between gene polymorphism of CYP2E1, CYP1A1, IL-4 and susceptibility of medicamentosa-like dermatitis induced by trichloroethylene (TCE).

METHODS35 patients with medicamentosa-like dermatitis induced by TCE were chosen as the patient group, and 35 healthy workers as control group. The real-time quantitative polymerase chain reaction (PCR) with TaqMan minor groove binding (MGB) probes was used to test single nucleotide polymorphisms (SNP) of CYP2E1, CYP1A1 and IL-4 in the patients with medicamentosa-like dermatitis as well as in the control. The genotypes and the frequency of genotype or allele were compared between the patients and control with statistical analysis.

RESULTSThe frequency of allele G within CYP1A1 gene (rs1048943) was significantly higher in TCE patients (37.1%) than that in control (P<0.05); the frequency of allele T within CYP2E1-1053 C/T was significantly higher in TCE patients (41.4%) than that in control (P<0.01); the frequency of T/T within IL-4-588 C/T (rs2243250) was significantly higher in TCE patients (75.0%) than that in control (P<0.01), and the frequency of allele T within IL-4-588 C/T (rs2243250) was also significantly higher in TCE patients (87.5%) than that in control (P<0.01).

CONCLUSIONThe gene polymorphism of CYP2E1, CYP1A1, IL-4 is probably associated with hypersensitivity for the TCE patients with medicamentosa-like dermatitis, and could be one of the genetic factors related to the individual susceptibility to TCE exposure.

Cytochrome P-450 CYP1A1 ; genetics ; Cytochrome P-450 CYP2E1 ; genetics ; Dermatitis, Occupational ; genetics ; Genetic Predisposition to Disease ; Humans ; Interleukin-4 ; genetics ; Polymorphism, Single Nucleotide ; Trichloroethylene ; adverse effects

Objective:To explore the value of ultrasound in the diagnosis of anterosuperior acetabular labral tear.Methods:A total of 102 patients [(42 males and 60 females,age from 13 to 60 years,average age was (35.14 ± 9.16) years] with suspected anterosuperior acetabular labral tear were included in this study,including 44 left hip joints and 58 right hip joints.All the patients received hip joint ultrasound and magnetic resonance imaging (MRI) evaluation before arthroscopy surgery.Using arthroscopy as golden standard,the sensitivity,specificity,positive predictive value,negative predictive value and accuracy between ultrasound and MRI were calculated and compared.Results:There were 91 anterosuperior acetabular labral tears of 102 patients which were confirmed during arthroscopy surgery.Sixtynine patients were diagnosed correctly by ultrasound,including 60 anterosuperior acetabular labral tears and 9 with no acetabular labral tears,whereas 2 were false-positive and 31 were found to be false-negative.The sensitivity,specificity,positive predictive value,negative predictive value and accuracy by ultrasound were respectively 65.93％,81.82％,96.77％,22.50％ and 67.65％.In contrast,seventy-seven patients were diagnosed correctly by MRI,including 70 anterosuperior acetabular labral tears and 7 with no acetabular labral tears,whereas 4 were false-positive and 21 were found to be false-negative.For MRI,the sensitivity,specificity,positive predictive value,negative predictive value and accuracy were respectively 76.92％,63.64％,94.59％,25.00％ and 75.49％.The results of ultrasound and MRI were in accordance in 68 of the 102 patients.There were 51 anterosuperior acetabular labral tears of the 68 patients who were diagnosed by both ultrasound and MRI,whereas there were 17 with no acetabular labral tears of the 68 patients who were diagnosed by both ultrasound and MRI.The results of ultrasound and MRI were inconsistent in 34 of the 102 patients.In 11 of the 34 patients,in which case ultrasound diagnosed anterosuperior acetabular labral tear,MRI found no acetabular labral tear.Whereas,in 23 of the 34 patients,in which case MRI diagnosed anterosuperior acetabular labral tear,ultrasound found no acetabular labral tear.As compared with MRI findings,ultrasound had a lower accuracy for anterosuperior acetabular labral tear than MRI,there was statistical difference on the accuracy for anterosuperior acetabular labral tear (P ＜ 0.01).Conclusion:Although ultrasound had a slightly lower sensitivity for anterosuperior acetabular labral tear,it had a higher specificity than MRI.Dynamic evaluation of anterosuperior acetabular labral tear is an advantage of ultrasound.Ultrasound could be used as a feasible method to evaluate anterosuperior acetabular labral tear.