Objective:To investigate the effects of experimental periodontitis on serum C reactive protein(CRP) and insulin resistance in obese rats.Methods:4 week old SD rats (n=35)were fed with high fat diet for 16 weeks to establish the model of obesity.According to the obesity criteria,5 rats were screened out.According to the proportion of 1:2,10 rats were randomly selected as obese control group,20 obese rats were used for the establishment of the obesity with periodontitis model(combination group) by periodontal ligation using silk thread.4 rats died after ligation.Before periodontal ligation,1 and 4 weeks after periodontal ligation,orbital venous blood were collected for the detection of fasting blood glucose and fasting insulin.Homeostasis model assessments of insulin resistance index(HOMA-IR) and beta cell function index(HOMA-β) were calculated.The level of serum CRP was examined by ELISA.Results:The level of CRP in the combination group was increased 1 week after periodontal ligation,and then gradually decreased in the following 4 weeks(F=7.773,P=0.004).HOMA-IR in the combination group were higher than that in the obese group(F=-4.691,P=0.000),and beta cell function index was significantly lower(F=3.672,P=0.002) than that in the control group 4 weeks after periodontal ligation.Conclusion:The experimental periodontitis may affect the serum level of CRP in obese rats,aggravate insulin resistance and decrease the function of beta cells in obese rats.

Objective To investigate the effects of different chromatogram fingerprints analysis methods on the quality evaluation of Chinese herbal medicine. Methods With the chromatogram fingerprints of a Chinese patent medicine in different batches as the analytic object, the quality evaluation of three methods such as peak area ratio,peak area quantification and similarity coefficient were investigated. Results The method of peak area ratio has the highest accuracy rate and the precise rate for quality evaluation, and similarity coefficient and peak area quantification came next. The result of peak area quantification was similar to that by current evaluation method. Conclusion Different chromatogram fingerprints analysis methods would result in a great difference in the quality evaluation of Chinese herbal medicine.

Objective: To investigate the effect of Xileisan temperature-sensitive gels on endothelial nitric oxide synthase (eNOS), vascular endothelial growth factor A (VEGF-A) and tumor necrosis factor-α (TNF-α) expression in rats with bleeding internal hemorrhoids, so as to provide insights into the illustration of the pathogenesis of internal hemorrhoid hemorrhage. Methods: Thirty six-week-old SPF-graded rats of the SD strain were randomly divided into the normal group, model group and Xileisan temperature-sensitive gel group, of 10 rats in each group (half male and half female). Cotton balls were soaked with 0.16 mL of croton oil mixture and then inserted into the anus of rats in the model group and Xileisan temperature-sensitive gel group for 10 s. After 6 h when the rectal mucosa tissues presented remarkable swelling, the perianal mucosa was rubbed repeatedly with a rough glass rod until the glass rod was bloody. Following successful modeling, rats in the Xileisan temperature-sensitive gel group was given rectal administration of Xileisan temperature-sensitive gel at a dose of 0.5 mL/d, while animals in the normal group and model group were given rectal administration of the blank gel at the same dose. Following administration for 7 successive days, rats were sacrificed, and the hemorrhoids tissues were collected for pathological examinations. The eNOS, VEGF-A and TNF-α expression was determined using immunohistochemistry and compared among groups. Results: Compared with the normal group, the rat hemorrhoids mucosa showed inflammatory changes in the model group, with submucosal congestion and edema, blood vessel congestion and dilation, and visible new blood vessels, and remarkable improvements were seen in the hemorrhoid mucosal inflammation in the Xileisan temperature-sensitive gel group. There were significant differences in the integrated option density (IOD) of eNOS and VEGF-A expression in rat hemorrhoids tissues among the three groups (P<0.05), and no gender-specific differences were seen (P>0.05). The IOD values of eNOS (45.84±13.66) and VEGF-A expression (45.89±9.06) were higher in rat hemorrhoids tissues in the model group than in the normal group (23.11±5.64 and 27.91±11.65) and the Xileisan temperature-sensitive gel group (27.41±8.89 and 33.44±6.20) (P<0.05), while no significant differences were detected in the IOD of TNF-α expression in rat hemorrhoids tissues among the three groups (P>0.05). Conclusion Xileisan temperature-sensitive gel may alleviate inflammation and internal hemorrhoids hemorrhage through inhibiting eNOS and VEGF-A expression in rat hemorrhoids tissues.

Abstract Anorectal malignant melanoma (ARMM) is a subtype of malignant melanoma with low incidence and high invasion, and has a poor prognosis due to its hidden location and rapid progression. In terms of pathogenesis, the molecular landscape and potential carcinogenic driver gene characteristics of ARMM are significantly different from those of cutaneous melanoma, manifested by a lower rate of somatic mutations, no ultraviolet exposure-related mutation characteristics, a high incidence of cell structural variation, and high genomic instability. The tumor-driving genomic mutations are mainly KIT, NRAS, and NF1 mutations, and the incidence of SF3B1 mutations is significantly higher than that in other sites of mucosal melanoma. Surgery is still the main treatment for ARMM, while immunotherapy and targeted therapy need further development. This article reviews the characteristics of carcinogenic driver gene mutations and clinical diagnosis and treatment of ARMM, providing a reference for the prevention and treatment of ARMM.

The COI gene as DNA barcode was used to identify the Manis pentadactyla and its adulterants in order to provide a scientific basis for the molecular identification of M. pentadactyla. Genomic DNA was extracted from experimental samples using the DNA extraction kit. The COI genes were amplified using polymerase chain reaction (PCR) and sequenced bi-directionally. Obtained sequences were assembled using the CodonCode Aligner. The neighbor-joining (NJ) tree was constructed by MEGA 6.0. The results indicated that COI sequences were successfully amplified and NJ trees results indicated that M. pentadactyla and its adulterants can be easily identification. Therefore, the COI gene is an efficient barcode for identification of M. pentadactyla and its adulterants,which will provide a new technique for the market supervision.
Animals ; Cattle ; DNA Barcoding, Taxonomic ; methods ; Drug Contamination ; prevention & control ; Electron Transport Complex IV ; genetics ; Mammals ; classification ; genetics ; Medicine, Chinese Traditional ; Molecular Sequence Data ; Phylogeny ; Quality Control ; Sheep ; Swine

Langerhans cell tumor is a kind of tumor that originates from Langerhans cells (LC) and maintain their specific phenotype profile and ultrastructural features. Based on cell morphology, immunohistochemical and ultrastructural characteristics, Langerhans cell tumor has two main subcategories: Langerhans cell histiocytosis (LCH) and Langerhans cell sarcoma (LCS). LCH is a benign clonal proliferative disease of the LC, whereas LCS is an extremely rare neoplastic proliferation of Langerhans cells with overtly malignant cytologic features and spreads aggressively, which is considered to be a high level malignant type of LCH. Both LCH and LCS can involved various tissues and organs and have complex and diverse clinical manifestation, which cause different severity. The diagnosis depends on histopathological morphology and immunohistochemistry; the electron microscopy was used to assists diagnosis when necessary. The treatment includes surgery, chemotherapy, radiotherapy, immunotherapy and hematopoietic stem cell transplantation, etc, but lack of generally accepted optimal treatment options currently, individualized treatment is needed. The prognosis of LCH is primarily related to the number of damaged organ, while LCS has a poor overall prognosis as its invasion and rapid progress. This article reviews the pathogenesis, clinical manifestations, diagnosis, treatment and prognosis of both LCH and LCS.
Histiocytosis, Langerhans-Cell ; Humans

In the basis of a large amount of literatures, this article sumed up the characteristics and application of eggshell membrane.

Objective To compare the saccharometabolism with the pancreatic islets functions and insulin resistance index in children with severe stress. Methods Thirty children with severe stress and 30 healthy children in control group were tested. The levels of fasting blood glucose (FBG), fasting insulin (FINS) and fasting C - peptide (FCP) were detected by radioimmunoassay respectively and insulin sensitivity index (ISI), insulin resistance index (IR) and fasting blood cell function index (FBCI) were calculated statistically. Results There were significant differences between the children with severe stress and the normal controls in the levels of FINS, FCP and FBG,(all P0.05). Conclusion There is insulin resistance with the significant decrease in the insulin sensitivity index and significant increase in insulin resistance index in the children with severe stress, which may cause the disorder in glucose metabolism in children with severe stress.

Objective To explore the relation between the expression of PBMCs IP-10 mRNA and systemic lupus erythematosus.Methods The expression of PBMCs IP-10 mRNA was investigated by RT-PCR semi quantitative method and samples from 46 patients with SLE,20 patients with RA,11 non-SLE patients with renal impairment and 20 healthy volunteers.Results The expression of PBMCs IP-10 mRNA in active SLE group was significantly higher than that in inactive group(P0.05).Serum levels of IP-10 were highly correlated with the expression levels of PBMCs IP-10 mRNA(r=0.897 1,P

Objective To investigate the expression of hypoxia-inducible 1 alpha(HIF-lα)and glucose transporter 1(Glut1)in human breast cancer and its relationship to proliferating cell nuclear antigen (PCNA)protein and clinical pathologic factors.Methods Immunohistochemical staining was used to measure the expression of HIF-lα.Glut1 and PCNA in human breast fibroadenoma,usual hyperplasia and breast carcinoma.Results HIF-1α expression was not found in breast fibroadenoma and hyperplastic Iesions.In contrast.the positive rate of HIF-1α was found in the ductal carcinoma in situ 55%(DCIS,11/20)and the invasive breast carcinoma 85%(51/60).Glut1 positivity in breast carcinoma was 58.8%(47/80).The totsl positive rate of PCNA in breast carcinoma was 75%(60/80),that in DCIS was 65%(13/20)and that in invasive carcinoma was 78.3%(47/60).There was a positive correlation between HIF-lα and Glut 1 level (r=0.653,P＜0.01),a positive correlation between HIF-1α and PCNA level(r=0.693,P＜0.01);and also a positive correlation between Glutl and PCNA level(t=0.742.P＜0.01).conclusion The overexpression of HIF-lα and its target gene Glut1 played important roles in carcinogenesis and progression of breast carcinoma and closely correlated with cell proliferation of breast carcinoma and may become a new target for treatment of breast carcinoma.