Abstract：
:The stems of Bougainvillea spectabillis Wild (Nyctaginaceae) have been used in folk medicine for hepatis, and spinasterol and quercetin were isolated and characterized from the plant leaves in this study. These constituents have not been previously isolated from Bougainvillea spectabillis W. Quercetin, the flavonoid, was found as active principle because it showed a strong activity on xanthine oxidase inhibition (IC50 = 7.23 microM) in this study as well as in the literature. Since xanthine oxidase serum levels are increased in hepatitis and tumoral brain tissues, quercetin may be used for remission of hepatitis or brain tumor. In order to study the structure-activity relationship of the flavonoids as regards xanthine oxidase inhibition, nine naturally occurring flavonoids have been tested the inhibitory effects on xanthine oxidase, such as baicalein, baicalin, capillarisin, d-catechin, d-epicatechin, hesperidin, liquiritin, puerarin and wogonin. The results showed that baicalein displayed the strongest activity (IC50 = 9.44 microM), followed by wogonin (IC50 = 52.46 microM) and then baicalin (IC50 = 71.73 microns). Baicalein induced uncompetitive inhibition of the enzyme with respect to xanhtine and the apparent inhibition constant (Ki) was 2.48 x 10(-6) M.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Chang WS,Lee YJ,Lu FJ,Chiang HCsubject
Has Abstractpub_date
1993-11-01 00:00:00pages
2165-70issue
6Aeissn
0250-7005issn
1791-7530journal_volume
13pub_type
杂志文章abstract：:Elevated levels of hypoxia inducible factor-1 (HIF1) are linked to tumor metastasis, angiogenesis, poor patient prognosis and response to chemotherapy. HIF1α is a master regulator of the hypoxic response, including in cancer cells, through transcriptional activation of several target genes. Previously, we identified c...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:This review focuses on the functional role and structural features of the genes involved in common hereditary cancers. Most of these tumors are sporadic and the genetic alterations responsible for their genesis take place over several cell generations; nevertheless, 5 to 10% of the human tumors are hereditary, with a ...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2000-11-01 00:00:00
abstract：:Formalin-fixed paraffin-embedded tumor specimens from 95 patients with supratentorial astrocytic brain tumors were immunostained by a monoclonal antibody against the heat shock protein-27 (Hsp-27) using the streptavidin/peroxidase method. The immunohistochemical analysis was scored in a semiquantitative fashion incorp...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:Rats were inoculated subcutaneously into both flanks with a transplantable adenocarcinoma of the colon. They were treated intravenously with either 5-FUrd (5-fluorouridine) or 5-FdUrd (5-fluoro-2'-deoxyuridine) with or without addition of dipyridamole 20 and 30 min later, respectively, for 3 consecutive days. Dipyrida...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：BACKGROUND:WAVE2 plays a crucial role in actin polymerisation and cell migration. We aimed to investigate the expression and cellular functions of WAVE2 in human gastric cancer (GC). MATERIALS AND METHODS:The level of WAVE2 was determined using quantitative PCR (Q-PCR) in a cohort of human gastric tissues. Expression ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-05-01 00:00:00
abstract：:Xenograft hyperacute rejection in humans occurs as a secondary response to a cellular glycosylation incompatibility with most non-human mammalian species. A key component of hyperacute rejection, alpha(1,3)galactosyl (agal) epitopes present on the surface of most non-human mammal cells, is bound by host anti-agal IgG ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND:The aim of this study was to analyse the Epstein-Barr virus (EBV) latency by detecting the EBV-associated latent small nuclear RNAs (EBER), in a group of biopsies from Spanish patients with diagnosed nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS:NPC paraffin samples with the presence of EBV demonstr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:Cutaneous metastases from renal cell carcinoma are rarely diagnosed during life. We reviewed the cases of our institute and from the Japanese literature and analyzed them to define the clinical features. PATIENTS AND METHODS:Six patients with cutaneous metastases from renal cell carcinoma were treated in ou...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2000-05-01 00:00:00
abstract：BACKGROUND:Tissue polypeptide antigen (TPA) is a circulating complex of polypeptide fragments from cytokeratins 8, 18 and 19. It is a tumour-related protein. TPA is an indicator of higher cell proliferation. One function of TP53 is the suppression of apoptosis. TP53 mutations are frequently correlated with tumour devel...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND:This study was performed to determine whether drug action on breast tumours could also be analysed using a cell turnover index (CTI), a composite measurement of both proliferation and apoptosis. MATERIALS AND METHODS:Data were obtained from a randomized, placebo-controlled trial comparing three single doses...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：
更新日期：2002-07-01 00:00:00
abstract：:The effects of silybinin, an antioxidant, on the pharmacokinetics of tamoxifen and its metabolite, 4-hydroxytamoxifen, were investigated in rats. A single dose of tamoxifen was administered intravenously (2 mg/kg) and orally (10 mg/kg) without or with silybinin (0.5, 2.5 and 10 mg/kg) to rats. Silybinin significantly ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：BACKGROUND/AIM:Activation of the c-JUN N-terminal kinase (JNK) signaling pathway has been associated with poor survival of ovarian cancer patients, but the role(s) and significance of JNK signaling in ovarian cancer cells remain poorly understood. In the present study, we aimed to investigate the role of JNK specifical...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：BACKGROUND/AIM:To evaluate the effectiveness of enzalutamide in Italian patients with hormone-refractory metastatic castration-resistant prostate cancer, progressing after chemotherapy with docetaxel plus prednisone. PATIENTS AND METHODS:A total of 60 patients were enrolled. Reduction in serum prostate-specific antige...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：10.21873/anticanres.11472
更新日期：2017-03-01 00:00:00
abstract：AIM:To analyze female gender as a possible age-dependent prognostic factor for overall (OS) and cancer-specific survival (CSS) in patients with upper urinary tract urothelial carcinoma (UUTUC) after radical nephroureterectomy (RNU). PATIENTS AND METHODS:A total of 167 men and 101 women with UUTUC treated with RNU with...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：BACKGROUND:Programmed cell death ligand 1 (PD-L1) expression in lung cancer appears to be important in immunotherapy, as its expression can predict responses to programmed cell death-1 (PD-1)-blocking antibodies. However, a definitive antibody and cut-off value for PD-L1 expression are urgently needed. MATERIALS AND M...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-07-01 00:00:00
abstract：:Human urothelial cell lines of non-malignant and malignant origin were classified into three grades of transformation, i.e. TGr I, TGr II, and TGr III, which differ from primary and early cultures of normal bladder mucosa (TGr 0) by growth in the absence of fibroblasts, prolonged survival, increasing chromosomal abnor...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:Taking into account the possible regulatory influences of the beta-adrenergic system on lymphocyte proliferation as well as the proposed role of cyclic 3'-5'-adenosine monophosphate (cAMP) in the modulation of multidrug resistance (MDR) in tumour cells, we have tried to assess the status of the interactions between th...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-11-01 00:00:00
abstract：BACKGROUND/AIM:The combination of bevacizumab (BEV) plus interferon alpha-2a (IFN) constitutes an option for first-line treatment of metastatic renal cell carcinoma. Real-world data from routine clinical practice are rare and were, therefore, collected during this non-interventional study (NIS). PATIENTS AND METHODS:A...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13188
更新日期：2019-02-01 00:00:00
abstract：BACKGROUND:The recent availability of a monoclonal antibody against human telomerase reverse transcriptase (hTERT) has enabled us to investigate the telomerase activity of tissue specimens more easily than by classical TRAP assay. In this study, we studied teromerase activity in thyroid tumors using this antibody. MAT...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：AIM:To identify conditions that induce an increase in the sensitivity of highly Halaven (HAL)-resistant cancer cells compared to sensitive cells. MATERIALS AND METHODS:We observed that drug-resistant KBV20C cells are highly resistant to HAL compared to other antimitotic drugs. The concentration required to treat KBV20...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11172
更新日期：2016-11-01 00:00:00
abstract：BACKGROUND:Over expression of Stathmin1 (STMN1), activation-induced cytidine deaminase (AID) and protein kinase C iota (PKCi) proteins participate in the regulation of carcinogenesis. In the present study, we investigated the expression of STMN1 in patients with gastric adenocarcinoma and also determined the correlatio...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：:Beta-casein-like protein (BCLP) is a putative protein on cervical cancer and exhibits immunological characteristics similar to those of bovine beta-casein. We evaluated if BCLP mRNA detection in the blood is useful in gynecologic malignancies. We examined 30 patients with uterine cancer, nine cultured cancer cell line...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:The role of serum tumor markers in lung cancer has not been defined. It is widely believed that almost all neoplasms produce at least a few substances, but the identity of most of the known substances has not been correlated with a positive role in either the diagnosis or prognosis of patients with these neoplasms. We...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:Induction of apoptosis is an approach to suppress carcinogenesis. The effects of a 12-week treatment of female Sprague-Dawley rats with indole-3-carbinol (I3C), beta-naphthoflavone or vehicle (40% ethanol in corn oil), by oral gavages starting 3 weeks after initiation of mammary tumorigenesis with 7,12-dimethylbenz[al...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：:The histoculture drug sensitivity assay (HDRA) has been demonstrated to have high predictability for resistance, sensitivity, and survival for gastrointestinal cancer (Clin Cancer Res 1: 305-311, 1995; Clin Cancer Res 1: 1537-1543, 1995). In this report, we evaluated the clinical usefulness of the HDRA in ovarian canc...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：BACKGROUND:Stimulation of inducible nitric oxide synthase (iNOS) and release of nitric oxide by tumor cells may play a critical role in cancer development, either by exhibiting tumoricidal effects or by promoting tumor progression. MATERIALS AND METHODS:In the present study, we investigated four ovarian carcinoma cell...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：BACKGROUND:Malignant transformation in endometriosis is a rare but well known complication. However, detailed mechanisms of malignant transition and tumourigenesis in endometriosis remain unknown. We here describe the case of an endometrioid carcinoma arisen in endometriotic ovarian cyst fulfilling Sampson's criteria f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND/AIM:Typical carcinoids (TC) and atypical carcinoids (AC) are rare diseases. A paucity of randomized studies and disagreements among various guidelines makes the management challenging. PATIENTS AND METHODS:Using codes for TC (8240) and AC (8249) in the National Cancer Database (NCDB), all surgically resecte...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13900
更新日期：2019-12-01 00:00:00
abstract：:The prognosis of patients with pancreatic cancer is very poor because of late diagnosis and the lack of response to various therapies. Pancreatic cancer is generally resistant to chemotherapy and is highly fatal. Gemcitabine (GEM) appears to be the only effective agent for treatment of pancreatic cancer. However, a hi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-09-01 00:00:00
abstract：:From 1980 to 1987, 243 evaluable patients with pT1, pT2 (less than 3 centimeters in diameter), N0, M0, invasive breast cancer were treated with "quadrantectomy" with axillary dissection followed by electron beam radiation therapy (QUART) at the St. Bortolo Hospital, Vicenza. Stage II patients received adjuvant chemoth...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
