Abstract:
:In vitro studies reveal that androgens, oestrogens, and their metabolites play a crucial role in prostate homeostasis. Most of the studies evaluated intraprostatic hormone metabolism using cell lines or preprocessed specimens. Using an ex vivo model of intact tissue cultures with preserved architecture, we characterized the enzymatic profile of biopsies from patients with benign prostatic hyperplasia (BPH) or cancer (PC), focusing on 17β-hydroxy-steroid-dehydrogenases (17β-HSDs) and aromatase activities. Samples from 26 men who underwent prostate needle core biopsies (BPH n = 14; PC n = 12) were incubated with radiolabeled (3)H-testosterone or (3)H-androstenedione. Conversion was evaluated by TLC separation and beta-scanning of extracted supernatants. We identified three major patterns of conversion. The majority of BPHs revealed no active testosterone/oestradiol conversion as opposed to prostate cancer. Conversion correlated with histology and PSA, but not circulating hormones. Highest Gleason scores had a higher androstenedion-to-testosterone conversion and expression of 17β-HSD-isoenzymes-3/5. Conclusions. We developed an easy tool to profile individual intraprostatic enzymatic activity by characterizing conversion pathways in an intact tissue environment. In fresh biopsies we found that 17β-HSD-isoenzymes and aromatase activities correlate with biological behaviour allowing for morphofunctional phenotyping of pathology specimens and clinical monitoring of novel enzyme-targeting drugs.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Gianfrilli D,Pierotti S,Pofi R,Leonardo C,Ciccariello M,Barbagallo Fdoi
10.1155/2014/464869subject
Has Abstractpub_date
2014-01-01 00:00:00pages
464869eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract::Stressful events can have both short- and long-term effects on the brain. Our recent investigation identified short-term white matter integrity (WMI) changes in 30 subjects soon after the Japanese earthquake. Our findings suggested that lower WMI in the right anterior cingulum (Cg) was a pre-existing vulnerability fac...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/180468
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:While studies using various materials to overcome ischemia-reperfusion (IR) injury are becoming increasingly common, studies on the effects of botulinum toxin A (BoTA) on IR injury in musculocutaneous flaps are still limited. The purpose of this study was to examine our hypotheses that BoTA provide protect...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/1074178
更新日期:2017-01-01 00:00:00
abstract::Little is known about how small variations in ionic currents and Ca²⁺ and Na⁺ diffusion coefficients impact action potential and Ca²⁺ dynamics in rabbit ventricular myocytes. We applied sensitivity analysis to quantify the sensitivity of Shannon et al. model (Biophys. J., 2004) to 5%-10% changes in currents conductanc...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/565431
更新日期:2013-01-01 00:00:00
abstract:Aim:This study aims to evaluate the accuracy of scanned images of 4 clinically used intraoral scanners (CS3600, i500, Trios3, Omnicam) when scanning the surface of full arch models with various kinds of orthodontic brackets in the presence of artificial saliva. Materials and Methods. Four study models were prepared; bo...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/2920804
更新日期:2020-02-27 00:00:00
abstract::This study evaluated the potential relationship between exosomal miRNAs and clinical symptoms in patients with multiple myeloma (MM). Forty-eight newly diagnosed myeloma patients and sixteen normal donors were enrolled in the study. The results showed that the relative expression levels of let-7c-5p, let-7d-5p, miR-14...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1575468
更新日期:2019-12-14 00:00:00
abstract::This study investigated the effect of cilostazol on proangiogenesis functions in human early endothelial progenitor cells (EPCs) in vitro and the therapeutic implication of hybrid therapy with cilostazol and human early EPCs in vivo. Cilostazol significantly increased colony-forming units and enhanced differentiation ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3639868
更新日期:2016-01-01 00:00:00
abstract::Hilar cholangiocarcinoma (HCC) remains one of the most difficult tumors to stage and treat. The aim of the study was to assess the diagnostic efficiency of computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/computer tomography (PET/CT) in evaluating the resectability of HCC. A...
journal_title:BioMed research international
pub_type: 杂志文章,meta分析,评审
doi:10.1155/2015/497942
更新日期:2015-01-01 00:00:00
abstract::Mind-body practices (MBP) are known to induce electrophysiological and morphological changes, whereas reports related to changes of neurotrophins are surprisingly scarce. Consequently, in the current paper, we focused on the Quadrato motor training (QMT), a newly developed whole-body movement-based MBP, which has been...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/275062
更新日期:2015-01-01 00:00:00
abstract::Human epididymis protein 4 (HE4) is an available tumor biomarker mainly for detecting ovarian cancer. However, it is unknown whether it can be a novel indicator for diagnosis of diabetic kidney disease (DKD). The aim of this study was to investigate the possibility of serum HE4 as a novel biomarker for DKD in patients...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/4831459
更新日期:2019-11-11 00:00:00
abstract:OBJECTIVES:Hypertension and hypervolemia relationship was proven among renal disease, although it is not known in normal population. Present study determines the fluid distribution defects in relation to blood pressure. MATERIAL AND METHODS:In a population-based survey in Turkey demographics, height, weight, blood pre...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/895401
更新日期:2014-01-01 00:00:00
abstract::Tankyrase (TNKS) plays important roles in the malignancy of several cancers such as human lung tumor, breast cancer, and hepatocellular cancer. However, its exact functions and molecular mechanisms in ovarian cancer remain unclear. In this study, we found that TNKS was aberrantly overexpressed in human ovarian cancer ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/2686340
更新日期:2019-02-20 00:00:00
abstract::Cancer is known to have unique metabolic features such as Warburg effect. Current cancer therapy has moved forward from cytotoxic treatment to personalized, targeted therapies, with some that could lead to specific metabolic changes, potentially monitored by imaging methods. In this paper we addressed the important as...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/625095
更新日期:2014-01-01 00:00:00
abstract::The present work reports the anticancer, antioxidant, lipo-protective, and anti-HIV activities of phytoconstituents present in P. hysterophorus leaf. Dried leaf samples were sequentially extracted with nonpolar and polar solvents. Ethanol fraction showed noticeable cytotoxic activity (81-85%) in SRB assay against MCF-...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/810734
更新日期:2013-01-01 00:00:00
abstract::Aims. To compare the clinical features of endometrial polyps (EPs) between patients with endometriosis (EM) (EM group) and without EM (non-EM group). Methods and Results. Seventy-six cases in the EM group and 133 cases in the non-EM group underwent laparotomy or hysteroscopy and laparoscopy; later, it was confirmed th...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/1460793
更新日期:2016-01-01 00:00:00
abstract:Background:Diabetes mellitus (DM) is a common disease that has an adverse impact on most orthopedic surgeries, and its prevalence has gradually increased in recent years. We aim to investigate the influence of DM on comorbidities and complications of patients undergoing primary total lower extremity arthroplasty. Meth...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2020/6661691
更新日期:2020-12-15 00:00:00
abstract::During vertebrate development, the lung inaugurates as an endodermal bud from the primitive foregut. Dichotomous subdivision of the bud results in arborizing airways that form the prospective gas exchanging chambers, where a thin blood-gas barrier (BGB) is established. In the mammalian lung, this proceeds through conv...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/101597
更新日期:2013-01-01 00:00:00
abstract::In spite of the declining incidence of gastric cancer (GC) in recent years, the mortality rate is still high. The asymptomatic nature and nonspecific clinical manifestations combined with the lack of efficient screening programs delay the diagnosis of GC. Therefore, the prevalence of advanced gastric cancer (AGC) has ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/3923585
更新日期:2016-01-01 00:00:00
abstract::A 35 KDa protein referred to as F3 was purified from the seeds of Borreria hispida by precipitation with 80% ammonium sulphate and gel filtration on Sephadex G-100 column. RP-HPLC analysis of protein fraction (F3) on an analytical C-18 column produced a single peak, detected at 220 nm. F3 showed an apparent molecular ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/179836
更新日期:2014-01-01 00:00:00
abstract::Mutations in genes encoding isocitrate dehydrogenase isoforms 1 (IDH1) and 2 (IDH2) have been associated with good prognosis for patients with brain neoplasias and have been commonly found together with mutated TP53 gene. To determine the prevalence of IDH1, IDH2, and TP53 mutations and their impact on overall surviva...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/654727
更新日期:2014-01-01 00:00:00
abstract::Due to anthropogenic activities the relative concentrations of cadmium and manganese have increased in the marine environment. Cephalopods are able to accumulate such metals and, as inhabitant of coastal waters, Octopus vulgaris is continuously exposed to anthropogenic activities. Since no study is available on the ef...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/437328
更新日期:2015-01-01 00:00:00
abstract::Enterotoxigenic Escherichia coli (ETEC) K88 is a zoonotic pathogen. Previous studies have shown that lactic acid bacteria (LAB) have great potential in promoting health and resisting pathogenic infections; however, relatively little research has been done on the Pediococcus genus of LAB. This study is aimed at explori...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7340312
更新日期:2020-03-30 00:00:00
abstract:Background:In resource limited settings, HIV/AIDS patients lack access to sufficient nutritious foods, which poses challenges to the success of antiretroviral therapy. HIV/AIDS and malnutrition are still major public health problems in Ethiopia. Though measuring nutritional status is an essential part of ART program, l...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/1913534
更新日期:2018-05-06 00:00:00
abstract::Staphylococcal food-borne disease (SFD) is one of the most common food-borne diseases worldwide resulting from the contamination of food by preformed S. aureus enterotoxins. It is one of the most common causes of reported food-borne diseases in the United States. Although several Staphylococcal enterotoxins (SEs) have...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/827965
更新日期:2014-01-01 00:00:00
abstract::The most expedient unit of the human body is its cell. Encapsulated within the cell are many infinitesimal entities and molecules which are protected by a cell membrane. The proteins that are associated with this lipid based bilayer cell membrane are known as membrane proteins and are considered to play a significant ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/8370132
更新日期:2016-01-01 00:00:00
abstract::Acute nonspecific, or primary, mesenteric lymphadenitis is a self-limiting inflammatory condition affecting the mesenteric lymph nodes, whose presentation mimics appendicitis or intussusception. It typically occurs in children, adolescents, and young adults. White blood count and C-reactive protein are of limited usef...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2017/9784565
更新日期:2017-01-01 00:00:00
abstract:Background:Thyroid cancer is the most common endocrine malignancy, with a recent global increase of 20% in age-related incidence. Ultrasonography and ultrasonography-guided fine-needle aspiration biopsy (FNAB) are the most widely used diagnostic tests for thyroid nodules; however, it is estimated that up to 25% of thyr...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2021/6752141
更新日期:2021-01-12 00:00:00
abstract:Background:Focal hyperhidrosis mostly affects the axillae, hands, feet, and face. For the management, several techniques are used. The aim of this study was to investigate the effects of direct current administration on the hyperhidrosis disease severity scale (HDSS) in patients with axillary hyperhidrosis that have va...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2019/3232015
更新日期:2019-10-31 00:00:00
abstract::Light traps represent the most used attractive system to collect and monitor phlebotomine sand flies. Recent studies have suggested that light traps can be easily upgraded by the use of light-emitting diode (LED) with positive effects on trap design, weight, and battery life. However, scant data on the effect of diffe...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/6432637
更新日期:2018-06-27 00:00:00
abstract::The ability of Aspergillus niger strain to reduce organic and mineral pollution as well as the toxicity of two tannery wastewaters, the unhairing effluent (UE) and the final effluent (FE), taken from a local Tunisian tannery and under nonsterile conditions, was studied. Raw effluents show alkaline pH ≥11; thus experim...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/9020178
更新日期:2019-06-03 00:00:00
abstract::The aim of this study was to detect oral bacteremia and offer the antibiotic resistance patterns. Bacterial resistance pattern was evaluated in 50 patients. A spectrophotometer device equipped with UV and electrophoresis of the extracted samples on agarose gel for antibiogram test were used. PCR test 15 minutes after ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9502959
更新日期:2020-10-01 00:00:00