Objective To investigate the clinical significance of human papillomavirus(HPV )genotype combined with thinprep cytologic test(TCT )in the diagnosis of cervical lesion .Methods A total of 473 patients were checked for 21 subtypes of HPV by diversion hybrid gene chip technology ,TCT and colposcope biopsy were also detected at the same time .The histology was selected as a gold standard to analyze the tested results .Results The over all positive rate of HPV in 473 patients was 35 .7% .The positive rate of high risk HPV(HR‐HPV) was 32 .1% ,the positive rate of TCT was 26 .6% ,the sensibility ,specificity ,false negative rate , positive predictive value and negative predictive value between HR‐HPV detection and TCT detection were no statistical signifi‐cance(χ2 = 3 .444 ,P= 0 .063) .The sensibility ,specificity ,false negative rate ,positive predictive value and negative predictive value of combining test were 95 .8% ,77 .7% ,4 .2% ,52 .3% and 98 .7% ,the sensibility and negative predictive value improved notably , and the omission diagnose rate decreased significantly(P< 0 .05) .Conclusion HPV genotype combined with TCT detection could significantly improve sensibility and negative predictive value and decrease omission diagnose rate in diagnosis of cervical lesion .

Stroke is a class of complex diseases,and it is the result of the combined action of environmental and genetic factors.With the development of molecular biology techniques,a large number of candidate genes associated with stroke and susceptibility loci have been identified.This article reviews the recent progress in research on the genetics of different subtypes of ischemic stroke.

AIM: The purpose of this study was to investigate the expression of myristoylated alanine-rich C kinase substrate (MARCKS) and p-MARCKS during cerebral ischemia. METHODS: The multi-cerebral infarction model was established by method of Kaneko. The stroke symptoms and signs scoring system were used to evaluate the animal model. Microscope and electronic microscope were used to watch the structure of rat brain. The expression of MARCKS and p-MARCKS was measured by Western blotting. The expression pattern of these proteins was further analyzed for their distribution at cellular level by immunohistochemistry staining of the tissues. RESULTS AND CONCLUSION: The expression of MARCKS and p-MARCKS protein in acute ischemic brain were elevated compared with the normal and control group (P

Objective NKT cells are very important as a kind of non-specific immune cells. Much attention in antitumor significance has been received in the study of its effect on malignant diseases. The aim of this study was to detect the expression of NKT cells and its CD+8 NKT subsets in peripheral blood of esophageal patients and normal person, and to analyze the changes in the expression of NKG2D and NKG2A receptorsand its clinical pathological factors. Methods By flow cytometric analysis, 53 patients with esophageal carcinoma and 39 normal controls were analysed for peripheral blood of NKT cells and CD+8 NKT subsets, and the expression of NKT cells NKG2A and expression of NKG2D receptor. The clinical pathological factors were collected for the comparative analysis. Results Compared with the normal control group, the expression of NKT cells in peripheral blood of esophageal patients increased [(4.32±0.73) %, (5.97±1.29) %] (t =3.562, P <0.01), and the expression level of its surface receptor NKG2D reduced [(17.56±5.92) %, (15.12±1.56) %] (t =3.892, P <0.05), but the express levels of NKG2A [(4.02±1.41) %, (5.99±4.59) %] in creased (r = 4.015, P <0.05), those expression change with the development of the esophageal cancer. Conclusion The increased expression of NKT cells and CD+8 NKT subsets in the peripheral blood of patients with esophageal carcinoma refletcs that the immune feedback of patients' antineoplastic effect is strengthened. The decresed expression of the active receptor NKG2D and the increased expression of the inhibitory receptor NKG2A on NKT cells might be one of mechanisms leading to the reduction of NKT cell activity and immune escape of patients with esophageal carcinoma. The changes of surface receptors of NKT cells may be associated with the development of the esophageal cancer.

Objective To observe the expression and mechanism of hypoxia-inducible factor-1α (HIF-1α) and p53 protein at the altitude of 5000 meter plateau hypoxia environment in rats,as well as the effect of Astragalus injection.Methods Sixty Sprague Dawley rats were randomly divided into the Astragalus injection intervention group and normal saline control group,30 rats in each group.Astragalus injection group rats were intraperitoneal injected of Astragalus injection (15 ml/kg) before 30 minutes into the plateau environment simulation cabin,normal saline group rats were intraperitoneal injected with the same volume of saline.30 minutes after injection,rats in each group were reared in the plateau experiment cabin which simulated altitude of 5000 m (oxygen partial pressure 11.3 kPa) for 2,6,8,12,24 hours,each time period of 6 rats.When get out,the rats were executed immediately and eyes were harvested.Retinal sections were studied by hematoxylin eosin stain,and immunohistochemical method for HIF-1α and p53 expression.Results For control rats,after 2 hours in the cabin,there was edema in retinal layers.HIF-1α and p53 were expressed mainly in the cytoplasm of retinal layers.When the periods in cabin extended,there was atrophy of retinal nerve fiber layer,swelling and degeneration of ganglion cells.The expression of HIF-1α and p53 was increased.Compared with the control group,the intervention group rat had similar but less severe retinal changes,and the expression of HIF-1α and p53 was significantly decreased (P ＜0.05).Conclusion Astragalus injection can reduce pathological retinal damage in rats at high altitude environment,and its mechanism may be associated with reduced HIF-1α,p53 expression.

test

Objective To investigate the correlation between invasion ability and cytoskeleton remodeling of hepatocarcinoma cell by atomic force microscopy (AFM) and to explore mechanical properties during genesis,development and invasion of hepatocellular carcinoma (HCC).Methods Four HCC cell lines (MHCC-97H,MHCC-97L,SMMC-7721 ,Huh-7 )with different invasive ability were studied.Mechanical parameter (Young′s modulus)was measured by AFM.The pattern of cytoskeleton remodeling of HCC cell lines with different invasive ability was detected by immunofluorescent staining. The difference of cell invasive ability was tested by cell scratch experiment in other to verify mechanical data.Kruskal-Wallis H test was used to compare the differences between groups.Results The results of AFM indicated that Young′s modulus of cytoplasma area and nucleus area decreased gradually as cell invasion ability increased (χ2 =472.78,622.43,both P <0.01).According to invasive ability from low to high,Young′s modulus of cell cytoplasm area of Huh-7,SMMC-7721 ,MHCC-97L and MHCC-97H were 1 602.43 (845 .48,3 317.25)Pa,1 055 .28 (367.48,2 280.77)Pa,1 026.78 (369.20,2 019.96)Pa and 503.12 (366.11 ,700.31)Pa,respectively.Young′s modulus of cell nucleus area of Huh-7,SMMC-7721 ,MHCC-97L and MHCC-97H were 2 823.98 (1 262.78,4 440.07 )Pa,1 313.43 (590.71 , 2 678.62)Pa,1 285 .17 (583.29,1 961 .19)Pa and 655 .57 (441 .29,943.39)Pa,respectively.The results of immunofluorescent staining showed that the stronger the cell invasive ability,the worse cytoskeletal integrity and more irregular cell microfilament distribution. In cell scratch assay, the migration rate of MHCC-97H was 46.67% in 24 h and 86.47% in 48 h,that of MHCC-97L was 45 .70%in 24 h and 82.86% in 48 h,that of SMMC-7721 was 39.41 % in 24 h and 79.85 % in 48 h and that of Huh-7 was 34.60% in 24 h and 72.09% in 48 h,which showed that the cell migration orderly in creased as the cell invasion ability increased.Conclusions It seemed that HCC with higher invasive ability had lower Young′s modulus,softer cell,stronger deformability,worse cytoskeleton integrity and more irregular cell structure,and vice versa.

Objective:To analyze morphological character of lateral tibial plateau fracture fragment, and its correlation to the presence of a meniscus injury in tibial plateau fractures.Methods:A total of 79 consecutive patients of the simple lateral tibial plateau fractures from July 201 1 to July 2015 were inclu-ded in this study,with 65 males and 14 females with an average age of (34.3 ±7.2)years and 22-61 years.According to Schatzker classification,21 cases were of Type Ⅰ,41 cases Type Ⅱ,and 17 cases Type Ⅲ.The characteristics of lateral tibial plateau fractures were evaluated by plain X-ray and magnetic resonance imaging (MRI ).The type and severity of meniscus injury were diagnosed by MRI scan. Three-dimensional measurements of the lateral fragment width (LFW),the lateral plateau depression (LPD),the coronal angulation of lateral fragment (CALF),and tibial plateau widening (TPW)were measured with Picture Archiving and Communication Systems(PACS)software.The patients with and without meniscus injuries were divided into different groups and analyzed respectively.Comparison of the above measurements between the two groups was analyzed by independent t test.Results:In all the 79 lateral tibial plateau fracture patients,26 cases (32.9%)of meniscus injuries were detected by MRI. Among all the meniscus injury cases,3 were of SchatzkerⅠ,16 SchatzkerⅡ,and 7 SchatzkerⅢ.In meniscus intact group,the average LFW was (22.0 ±2.8)mm while in meniscus injury group it was (21.3 ±3.3)mm (t =-1.008,P =0.317).The average LPD of non meniscus injury group was (5.4 ±2.8)mm,while in meniscus injury group was (8.7 ±2.8)mm (t=4.98,P=0.001).The average CALF of the two groups were 9.1°±6.1°and 10.6°±7.1°,and there was no significant dif-ference between the two groups (t=0.38,P=0.831).The average TPW was (3.0 ±1.1)mm,and (4.8 ±1 .7 )mm of the two groups.There were significant differences between the two groups (t =5.216,P=0.001).Conclusion:There was no obvious correlation between the LFD and meniscus inju-ry.The CALF of lateral tibial plateau fracture had no significant correlation with meniscus injury either. The degree of LPD and TPW may indicate injury of the meniscus in tibial plateau fractures.

OBJECTIVE: To evaluate decision regret among patients receiving penile girth enhancement with acellular dermal matrix (PGE with ADM) and to investigate the potential indicators for decisional regret so as to facilitate the decision-making process for this special group. METHODS: In the study, 78 patients receiving PGE with ADM from Jun. 2016 to Jan. 2019 at Peking University People's Hospital and cooperative hospitals were eligible. Penile girth was taken by only one surgeon 1 week before surgery. Hospital anxiety and depression scale (HAD), international index of erectile function (IIEF) and a 10 cm long visual analogue scale named visualized penile image (VPI) were applied to measure psychological burden, erectile function and satisfaction with penile image respectively at the same time. All the patients were followed up for 3 months. Decision regret scale (DRS) was adopted for measuring decisional regret. Multivariate analysis of variance was applied to investigate the potential indicators for regret. Data analysis process was conducted with SPSS (version 24.0; SPSS, Chicago, IL, USA). RESULTS: Mean penile girth recorded before intervention was (8.29±0.30) cm and increased to (9.46±0.29) cm post surgery (t=76.28, P < 0.01). As for both subscales of HAD measuring psychological burden, a signi-ficant reduction in the mean score was seen, that is, 2.8±1.3 (t=19.28, P < 0.05) for anxiety and 3.0±1.2 (t=20.67, P < 0.05) for depression, respectively. The average score of VPI increased by 3.7±1.1 (t=30.63, P < 0.05). There was no significant change in the average score of IIEF measuring erectile satisfaction (t=1.60, P=0.11). Twenty-nine (38.2%) patients expressed regret to some degree, and the mean DRS score was 23.4±14.8. The scores of DRS correlated negatively with scores of visualized penis image (r=-0.348, P < 0.01), and positively with scores of anxiety (r=0.760, P < 0.01) and depression subscale (r=0.471, P < 0.01). The scores of DRS was irrelevant to those of IIEF (r=0.02, P=0.867). The patients with high annual income (> 120 000 yuan) and education level above undergraduate were more prone to experience decision regret after intervention (P < 0.01). CONCLUSION PGE with ADM did augment penile girth and lower psychological burden, the regret rate of which was acceptably low among the patients. High income and good education might indicate more post-operative regret. Additional decision-making aids should be offered to patients with high income and education level above high school.
Acellular Dermis ; Emotions ; Humans ; Male ; Patient Satisfaction ; Penile Erection ; Penis ; Reconstructive Surgical Procedures

This paper studied the HPLC and NIRS fingerprints of Chrysanthemum with different processing methods, including directly drying, drying after steamed, and drying after fried. The method of discriminant analysis of TQ software was used to analysis the NIRS fingerprint of Chrysanthemum with three different processing methods, and the results were consistent with HPLC fingerprint similarity analysis. NIRS and HPLC fingerprints were of different characteristics, and the combination of the two methods can quickly and accurately identify Chrysanthemum with different processing methods.
Chemistry, Pharmaceutical ; Chromatography, High Pressure Liquid ; methods ; Chrysanthemum ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Spectroscopy, Near-Infrared ; methods