Objective：This study was designed to investigate microvessel density (MVD) and expression of vascular endothelial growth factor (VEGF)， basic fibroblast growth factor (bFGF) in pancreatic cancer, and the relevance of these three indexes to the biological behavior of the cancer． Methods：Intratumor MVD and the expression of VEGF and bFGF were examined by immunohistochemical staining in 47 pancreatic cancer tissues (polyclonal antibody for FⅧ and VEGF, monoclonal antibody for bFGF), and the relationship between either MVD or the expression of these two angiogenic factors and the clinicopathological features, including survival were analyzed． Results：MVD in cancer tissues was higher (10.32± 3.32) than that in normal tissues (6.72± 1.73) (P<0.01). In 47 cases, the positive rate of expression of VEGF, bFGF protein in pancreatic cancer was significantly higher than that in normal tissues(P< 0.05), 57.44％ of 47 pancreatic cancer were positive for VEGF protein in cancer cells,and 63.82％ showed strong bFGF staining in cancer and infilbrating cells． The overexpression of VEGF and bFGF protein correlated significantly with high MVD (P< 0.05). Advanced pathological grade of the disease was significantly more frequent in the patients with high MVD, positive staining of VEGF and bFGF, (P< 0.01)． The higher MVD and the overexpression of bFGF correlated with poor survival (P< 0.05)． Conclusions： Intratumor MVD is strongly related to the progress, invasiveness and metastasis of pancreatic cancer, and may serve as a meaningful prognostic factor． The overexpression of VEGF and bFGF may play an important role in the process of tumor-associated neovascularization and suggest that VEGF or bFGF system may be promising target for antiangiongenic strategy of pancreatic cancer．

OBJECTIVETo investigate the genetic polymorphism of 15 autosomal short tandem repeat (STR) loci, i.e. D5S818, FGA, D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D2S1338, D19S433, vWA, TPOX and D18S51, in Tibetan population of Changdu area, and to analyze the genetic relationship between this population and other Asian populations.

METHODSThe 15 loci were amplified simultaneously using a multiplex PCR typing system. Amplified STR fragments were analyzed with an ABI PRISM 3100 Avant DNA Analyzer. Arlequin software version 3.1 was used to obtain allele frequencies and polymorphism parameters.

RESULTSThere were 135 STR alleles in the 15 STRs of Changdu Tibetan, with allele frequencies ranging from 0.0065 to 0.5455. The average heterozygosity was 0.7340, the discrimination power was higher than 0.8 except for TPOX and TH01. The accumulative discrimination power was more than 0.9999998, and the accumulative non-parental exclusion probability was 0.99999997.

CONCLUSIONThe 15 STR loci of Changdu Tibetan possess characteristics of high genetic diversity. They can be employed in minority genetics investigation, and individual and paternity test in forensic medicine.

Asian Continental Ancestry Group ; ethnology ; genetics ; Female ; Humans ; Male ; Microsatellite Repeats ; Pedigree ; Polymorphism, Genetic ; Tibet ; ethnology

OBJECTIVETo investigate the expression and its clinical significance of estrogen receptor (ERα) and phosphorylated estrogen receptor (p-ERα) in patients with hepatocellular carcinoma. The associations between ERα, p-ERα and IL-6 were also analyzed.

METHODSImmunohistochemistry was used to detect the expression of ERα, p-ERα and IL-6 in tumor tissues from 77 cases with hepatocellular carcinoma. The relations between ERα and the clinical pathological parameters and prognosis were also analyzed.

RESULTSThe positive rates of ERα, p-ERα and IL-6 in hepatocellular carcinoma were 39.0% (30/77), 45.4% (35/77) and 72.7% (56/77), respectively. The expression of ERα and p-ERα were negatively correlated with the expression of IL-6 (r=-0.468, P<0.01; r=-0.370, P<0.01, respectively). The positive rate of ERα in patients with tumor size≤5 cm, serum level of alpha-fetoprotein<400 µg/L, with complete encapsulation and non-microvascular invasion was significantly higher than those with tumor size>5 cm, serum level of alpha-fetoprotein≥400 µg/L, non-complete encapsulation and with microvascular invasion (all P<0.05). The overall survival rates of ERα-positive and ERα-negative patients were 66.7% and 23.4% (P<0.05). And the disease-free survival rates of ERα-positive and ERα-negative patients were 83.3% and 57.4% (P<0.05).

CONCLUSIONSThe tumor biological features of ERα-positive patients are better than that of ERα-negative patients. The role of ERα in hepatocellular carcinoma may be related to IL-6 level.

Adult ; Aged ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Estrogen Receptor alpha ; metabolism ; Female ; Hepatitis B ; metabolism ; pathology ; Humans ; Interleukin-6 ; metabolism ; Kaplan-Meier Estimate ; Liver Neoplasms ; metabolism ; pathology ; Male ; Middle Aged ; Phosphorylation ; Prognosis ; Proportional Hazards Models ; Young Adult

Objective To describe the current state of research and future research hotspots through a metrological analysis of the literature in the field of forensic anthropological remains identification re-search.Methods The data retrieved and extracted from the Web of Science Core Collection (WoSCC),the core database of the Web of Science information service platform (hereinafter referred to as "WoS"),was used to analyze the trends and topic changes in research on forensic identification of human re-mains from 1991 to 2022.Network visualisation of publication trends,countries (regions),institutions,authors and topics related to the identification of remains in forensic anthropology was analysed using python 3.9.2 and Gephi 0.10.Results A total of 873 papers written in English in the field of forensic anthropological remains identification research were obtained.The journal with the largest number of publications was Forensic Science International (164 articles).The country (region) with the largest number of published papers was China (90 articles).Katholieke Univ Leuven (Netherlands,21 articles) was the institution with the largest number of publications.Topic analysis revealed that the focus of forensic anthropological remains identification research was sex estimation and age estimation,and the most commonly studied remains were teeth.Conclusion The volume of publications in the field of forensic anthropological remains identification research has a distinct phasing.However,the scope of both international and domestic collaborations remains limited.Traditionally,human remains identifica-tion has primarily relied on key areas such as the pelvis,skull,and teeth.Looking ahead,future re-search will likely focus on the more accurate and efficient identification of multiple skeletal remains through the use of machine learning and deep learning techniques.

In order to clarify regions of production and to discriminate processing methods, quantitative and qualitative analyses for saccharides and terpenes in 35 batches of Alismatis Rhizoma were performed. Methodologies included HPLC-PDA, HPLC-VWD and UHPLC-MS , combined with principal component analysis (PCA) and partial least squares regression techniques (PLSR). The inhibitory effects of triterpenes and Alismatis Rhizoma extracts on lipase activity were evaluated . PLSR analysis revealed significant positive correlations ( = 0.5795) between the contents of triterpenes , , , and and the inhibitory effects of Alismatis Rhizoma. The present study establishes an effective method for simultaneous determination of multiple components, and identifies key bioactive triterpenes. These results can be used for systematic and novel analytical strategies for the quality control of Alismatis Rhizoma production.