Biopsy ; Histological Techniques ; instrumentation ; methods ; Humans ; Indicators and Reagents ; Paraffin Embedding ; Ultrasonics

Objective:To investigate the protective effect of Yiqi Huazhi recipe Quqian granules on rat renal tubular cell apoptosis induced by lead poisoning. Methods:Totally 60 Wistar rats were divided into 2 groups, 12 in the control group and the others in the model group. Chronic lead poisoning model was made by drinking 0. 02% lead acetate water for 60 days. Then the lead poisoning rats were randomly divided into four groups, high-dose Quqian granules group (3. 0 g·kg-1·d-1), low-dose Quqian granules group (0. 6 g·kg-1 ·d-1 ) , positive control group ( calcium disodium edentate plus procaine, im, 50 mg·kg-1 ·d-1 ) and model group. Seven treatment courses were carried out in the first three groups with every 4-d as one course and 4-d withdrawal period between every two courses. After 60 days, the change of lead in blood and kidney was observed by atomic absorption spectrometry,the apoptosis of kidney tissues was studied by TUNEL, the expression of Bcl-2 protein was detected by immunohistochemical methods and the expression of p53 was studied by Western Blotting. Results:Compared with the control group, the body weight, hemoglobin and the expression of Bcl-2 in the model group were decreased significantly(P<0.01)those in, and Pb in blood(0.990 ±0.443)μg·ml-1, Pb in kidney(51.33 ± 5. 16)μg·ml-1 , the apoptosis of tubular epithelial cell(4. 148 ± 0. 414) and the expression of p53 protein (1. 868 ± 0. 139) were significantly higher (P<0. 05). Compared with the those in model group, the body weight, hemoglobin and Bcl-2 in high-dose group were increased significantly(P<0.01), and the blood lead level (0.082 ±0.015)μg·ml-1, the kidney lead level (6.38 ±0.97)μg ·ml-1 , the apoptosis of tubular epithelial cell(1. 412 ± 0. 109) and p53 protein expression(1. 164 ± 0. 172) were significantly lower (P<0. 05). Conclusion:Lead may induce high expression of p53,low expression of Bcl-2 and promote the apoptosis of renal tubular epithelial cells. It is proven that Yiqi Huazhi recipe Quqian granules can inhibit the expression increase of p53 and the expression de-crease of Bcl-2 resulting in the reduction of the renal tubular apoptosis to allivate the renal injury caused by lead.

OBJECTIVETo observe the effect of Uighur medicine gu-jing-mai-si-ha tablet (GJMSHT) for treatment of premature ejaculation (PE) and to explore part of its mechanism.

METHODSThe condition of patients was scored by related questionnaire, and the intravaginal ejaculation latency time (IELT) was observed before and after GJMSHT treatment, with the blood levels of nitric oxide (NO) and prostaglandin F2alpha (PGF2alpha) detected in PE patients as well. The results were compared with those in the control group.

RESULTSAfter treatment, the scores of PE and IELT, as well as the levels of NO and PGF2alpha, all increased significantly compared to those before treatment in the treated group (P<0.01), while in the control group, all the parameters were insignificantly changed (P>0.05). Therefore, the difference of these parameters between the two groups after treatment all showed statistical significance (P<0.01).

CONCLUSIONGJMSHT could treat PE effectively, its mechanism is possibly by strengthening the coordination of the related smooth muscles through increasing the blood levels of NO and PGF2alpha, and the endurance of patients to the cavitary effect of prostatico-urethral pressure, thus postponing the arrival of urgent ejaculatory feeling.

Adult ; Dinoprost ; blood ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Ejaculation ; drug effects ; Female ; Humans ; Male ; Nitric Oxide ; blood ; Sexual Dysfunction, Physiological ; drug therapy ; physiopathology ; Tablets

OBJECTIVETo report eight cases of central mucoepidermoid carcinoma of the jaws (CMCJ) and to analyze its clinical and pathological features.

METHODSEight cases of central mucoepidermoid carcinoma were diagnosed between 1989 and 2008. The clinical manifestation, radiological and histopathological changes were analyzed.

RESULTSThe mean age of this group of patients was 43.3 years, with 5 male and 3 female. Seven cases occurred in mandible, mainly in the molar, angle and ramus areas, and one in maxilla. The first complain usually was local swelling, pain or paraesthesia of the jaw and loosening and pain of the tooth. X-ray displayed unilocular or multilocular radiolucent lesion with distinct or ill-distinct border, and the light microscopic findings were similar to the mucoepidermoid carcinoma originated in the salivary gland.

CONCLUSIONSTo diagnose a CMCJ, it's necessary to synthetically analyze the case history, clinical examination, radiological and histopathological features. The treatment is wide local resection. Selective neck dissection and radiochemotherapy may improve curative effect and prognosis.

Adult ; Aged ; Carcinoma, Mucoepidermoid ; pathology ; Female ; Humans ; Jaw Neoplasms ; pathology ; Male ; Middle Aged

OBJECTIVETo investigate the association of MspI polymorphism of Cytochrome P4501A1 (CYP1A1) gene and smoking to the susceptibility to coronary artery disease (CAD).

METHODSThe genotypes of CYP1A1 MspI site were detected using the methods of polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) in 349 cases with CAD and 404 non-CAD as controls. CAD diagnosis was confirmed by coronary angiograms. Genetic risk of CYP1A1 genotypes was analyzed by smoking index (SI).

RESULTSThe frequency of the predominant homozygotes TT, heterozygotes TC and the rare homozygotes CC in CAD group were not different with that of the controls (chi(2) = 3.224, P = 0.200). But in the smokers, the frequency of CC in CAD group was higher than that of non-CAD group (P = 0.002), while its odds ratio was 3.142 [95% confidence interval (CI) 1.481 - 6.668]. The odds ratio of genotype CC and heterozygote TC was 2.215 (95% CI 1.087 - 4.510) in the low dose cigarette smoking group, and was 1.407 (95% CI 0.709 - 2.791) in the high dose cigarette smoking group.

CONCLUSIONBoth MspI polymorphism of CYP1A1 gene and smoking exposure promote the development of CAD.

Aged ; Coronary Artery Disease ; genetics ; Cytochrome P-450 CYP1A1 ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Male ; Middle Aged ; Polymorphism, Genetic ; Smoking ; genetics

Objective To explore the association between polymorphisms of adiponectin gene and the risk of ischemic stroke in Han population from the Northern parts of China.Methods TaqMan probe of RT-PCR was applied to detect the genotype frequency of single nucleotide polymorphism(SNPs)(rs266729 and rs2241766)of adiponectin gene in 357 ischemic stroke cases who developed the episode at first time and with 345 healthy controls.Logistic regression analysis was used to evaluate the relationship of each genotype of SNPs and ischemic stroke.Results Mutation of rs2241766(T＞G)increased the risk of ischemic stroke among all the samples(0R=1.55,P=0.01)and it was still the risk factor of ischemic stroke when analyzed by multi-factors logistic regression after each factor was adjusted(OR=1.55,P=0.00).The polymorphism of rs266729 was not related to the risk of ischemic stroke among all the samples(OR=1.13,P=0.57).However,the genotype GG of rs266729 increased the risk of ischemic stroke among female population(OR=3.25,P=0.04).Conclusion The variance of rs2241766 in adiponectin gene was related to the risk of ischemic stroke in Han population from the Northern parts of China and the genotype GG of rs266729 could possibly increase the risk of ischemic stroke in women of Han population from the Northern parts of the country.

Objective: : To study the physiochemical characteristics of podophyllotoxin (PPT) conjugated stearic acid grafted chitosan oligosaccharide micelle (PPT-CSO-SA), and evaluate the ability of the potential antineoplastic effects against glioma cells. Methods: : PPT-CSO-SA was prepared by a dialysis method. The quality of PPT-CSO-SA including micellar size, zeta potential, drug encapsulation efficiency and drug release profiles was evaluated. Glioma cells were cultured and treated with PPT and PPT-CSO-SA. The ability of glioma cells to uptake PPT-CSO-SA was observed. The proliferation of glioma cells was determined by 3-[4, 5-dimethyl-2-thiazolyl]-2, 5-diphenyl-2H-tetrazolium bromide (MTT) assay. The apoptosis and morphology of U251 cells were observed by 4’,6-Diamidino-2-phenylindole dihydrochloride (DAPI) dye staining. Cell cycle analysis was performed by flow cytometry. The migration ability of U251 cells was determined by wound healing test. Results: : PPT-CSO-SA had nano-level particle size and sustained release property. The encapsulation efficiency of drug reached a high level. The cellular uptake percentage of PPT in glioma cells was lower than that of PPT-CSO-SA (p<0.05). The inhibitory effect of PPT-CSO-SA on glioma cells proliferation was significantly stronger than that of PPT (p<0.05). The morphologic change of apoptosis cell such as shrinkage, karyorrhexis and karyopyknosis were observed. The percentage of U251 cells in G2/M phase increased significantly in the PPT-CSO-SA group compared with PPT group (p<0.05). Compared with the PPT group, the cell migration ability of the PPT-CSO-SA group was significantly inhibited after 12 and 24 hours (p<0.05). Conclusion : PPT-CSO-SA can effectively enhance the glioma cellular uptake of drugs, inhibit glioma cells proliferation and migration, induce G2/M phase arrest of them, and promote their apoptosis. It may be a promising anti-glioma nano-drug.

OBJECTIVETo investigate the clinicopathological characteristics of large cell calcifying Sertoli cell tumor (LCCSCT) of the testis.

METHODSWe studied a case of LCCSCT by light microscopy, Western blotting and immunohistochemistry, reviewed relevant literature, and analyzed the clinical, morphological and immunohistochemical features, treatment and prognosis of the tumor.

RESULTSThe patient was a 25 years old man. Pathohistologically, the tumor was characterized by a mass of polygonal tumor cells in a tubular and trabecular growth pattern, with abundant acidophilic cytoplasm, enlarged vesicular nuclei, and extensive calcified debris in stroma. The tumor cells were positive for inhibin, S-100, vimentin and alcian blue, but negative for PLAP, SMA, CK, AFP and periodic acid-Schiff (PAS) reaction.

CONCLUSIONLCCSCT is a rare testicular sex cord stromal tumor. Its diagnosis is based on immunohistochemical staining, and it is to be differentiated from other lesions of the testis, including seminoma, Leydig cell tumor, Sertoli cell node, and androgen insensitivity syndrome. For the treatment of LCCSCT, surgical resection often has a good prognosis.

Adult ; Humans ; Male ; Sertoli Cell Tumor ; pathology ; Sex Cord-Gonadal Stromal Tumors ; pathology ; Testicular Neoplasms ; pathology ; Testis ; pathology

Objective To investigate the relationship between MRI classification and both time of awakening and prognosis in patients with long-term consciousness disorders after traumatic brain injury. Methods Sixty-six patients, admitted to our hospital from 2003 to 2008 and suffered from severe traumatic brain injury with consciousness disorders for more than 2 weeks, were collected. The cranial MRI data of all patients were recorded and classified; the awakening time of all conscious patients after injury was recorded; the prognoses were judged by Glasgow outcome scale 6 month after the injury.The relationship between MRI classification and both time of awakening and prognosis were analyzed.Results The prognoses (the scores of Glasgow outcome scale) were closely associated with the cranial MRI classification; the higher the MRI classification, the poorer the prognosis; the accuracy rate of MRI in assessing the prognosis was 83.33%. The average awakening times were (8.00±4.10) weeks in patients with graded Ⅰ and Ⅱa of MRI classification, and (22.67±23.66) weeks in patients with graded Ⅱb and Ⅲ of MRI classification. Conclusions The MRI classification is correlative to the prognosis and the awakening time of the patients with long-term consciousness disorders after severe traumatic brain injury.Using MRI classification can objectively and accurately evaluate patients' prognosis.

OBJECTIVETo investigate the expressions of RhoC and osteopontin (OPN) protein in esophageal squamous carcinoma (ESC) and their association with the biological behavior of ESC.

METHODSThe expressions of RhoC and OPN protein were detected in 80 ESC cases by immunohistochemistry.

RESULTSThe positive expression rate of RhoC was 66.25% in these ESC cases. The rate was significantly higher in cases with lymph node metastasis than in those without (r(s)=-2.115, P<0.05), but RhoC expression was not associated with the tumor diameter, differentiation or TNM grade (P>0.05). The RhoC-positive patients had significantly shorter survival time than the negative patients (P<0.001). All the 80 ESC patients were positive for OPN expression, and OPN expression levels were correlated with the differentiation (chi(2)=10.766, P<0.05) and lymph node metastasis of the tumor (r(s)=-2.289, P<0.05), but not with the tumor diameter or TNM grade (P>0.05). Higher expression level of OPN was closely related to shorter survival time of the patients (P<0.05). A positive correlation was found between RhoC protein and OPN expressions (r(s)= 0.408, P<0.001) in these cases.

CONCLUSIONThe expressions of RhoC and OPN protein are closely related to lymph node metastasis of ESC and the patients survival time, and therefore may serve the purpose of prognostic evaluation of ESC.

Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; biosynthesis ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Esophageal Neoplasms ; metabolism ; pathology ; Female ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Osteopontin ; biosynthesis ; Prognosis ; Survival Analysis ; rho GTP-Binding Proteins ; biosynthesis ; rhoC GTP-Binding Protein