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https://www.readbyqxmd.com/read/28646317/di-n-butyl-phthalate-prompts-interruption-of-spermatogenesis-steroidogenesis-and-fertility-associated-with-increased-testicular-oxidative-stress-in-adult-male-rats
#1
Giribabu Nelli, Sreenivasula Reddy Pamanji
Di-n-butyl phthalate (DBP) is extensively used as plasticizer, and it was ubiquitary released into the environment. The present study was aimed to investigate the effect of DBP on reproductive competence in adult male rats. Adult male rats were received corn oil or DBP injection intraperitoneally (ip) at 100 and 500 mg/kg body weight on 90, 97, 104, and 111 days. Following completion of the experimental period, adult male rats were cohabitated with untreated proestrus female rats for determination of fertilization capacity...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28643314/-analysis-of-the-common-hemorrhage-sites-during-laparoscopic-rectal-cancer-surgery
#2
Xiaohui Wang, Li Zhou, Xiaojun Li, Ruiting Liu, Jianfeng Yao, Cong Tong
OBJECTIVE: To analyze the common hemorrhage sites during laparoscopic rectal cancer surgery in order to take reasonable prevention and management. METHODS: Clinical data of 355 rectal cancer patients who underwent laparoscopic total mesorectal excision in Shanxi Provincial People's Hospital from January 2012 to December 2014 were retrospectively analyzed. Common bleeding sites, blood loss, and hemostasis time were recorded. According to the date of operation, patients were divided into 2012 group (91 cases), 2013 group (122 cases) and 2014 group(142 cases)...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28640953/overview-of-transgenic-mouse-models-of-myeloproliferative-neoplasms-mpns
#3
Andrew Dunbar, Abbas Nazir, Ross Levine
Myeloproliferative neoplasms (MPNs) are a class of hematologic diseases characterized by aberrant proliferation of one or more myeloid lineages and progressive bone marrow fibrosis. In 2005, seminal work by multiple groups identified the JAK2V617F mutation in a significant fraction of MPN patients. Since that time, murine models of JAK2V617F have greatly enhanced the understanding of the role of aberrant JAK-STAT signaling in MPN pathogenesis and have provided an in vivo pre-clinical platform that can be used to develop novel therapies...
June 22, 2017: Current Protocols in Pharmacology
https://www.readbyqxmd.com/read/28635619/on-the-importance-of-accurate-quantification-of-individual-volatile-metabolites-in-exhaled-breath
#4
David Smith, Patrik Spanel
It is argued that shortcomings of certain approaches to breath analysis research based on superficial interpretation of non-quantitative data are inadvertently inhibiting the progression of non-invasive breath analysis into clinical practice. The objective of this perspective is to suggest more clinically profitable approaches to breath research. Thus, following a discourse on the challenges and expectations in breath research, a brief indication is given of the analytical techniques currently used for the analysis of very humid exhaled breath...
June 21, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28635569/stratification-model-based-on-early-postprostatectomy-prostate-specific-antigen-kinetics-may-help-to-reduce-the-risk-of-overtreatment-in-candidates-for-adjuvant-radiotherapy
#5
Stepan Vesely, Ladislav Jarolim, Marek Schmidt, Joana Do Carmo Silva, Katerina Duskova, Marko Babjuk
OBJECTIVE: The aim of this study was to construct a stratification model based on early postoperative kinetics of prostate-specific antigen (PSA) to select the most suitable high-risk patients for early intervention after radical prostatectomy (RP). MATERIALS AND METHODS: The study evaluated 205 men who had undergone RP without any adjuvant treatment. All of the patients had positive surgical margins, extracapsular extension and/or seminal vesicle invasion. The patients underwent multiple ultrasensitive PSA measurements on days 14, 30, 60 and 90 after RP, and subsequently at 3 month intervals...
February 24, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28632688/high-quality-3-dimensional-1h-magnetic-resonance-spectroscopic-imaging-of-the-prostate-without-endorectal-receive-coil-using-a-semi-laser-sequence
#6
Nassim Tayari, Isabell K Steinseifer, Kirsten M Selnæs, Tone F Bathen, Marnix C Maas, Arend Heerschap
OBJECTIVES: Inclusion of 3-dimensional H magnetic resonance spectroscopic imaging (3D-H-MRSI) in routine multiparametric MRI of the prostate requires good quality spectra and easy interpretable metabolite maps of the whole organ obtained without endorectal coil in clinically feasible acquisition times. We evaluated if a semi-LASER pulse sequence with gradient offset independent adiabaticity refocusing pulses (GOIA-sLASER) for volume selection can meet these requirements. MATERIALS AND METHODS: Thirteen patients with suspicion of prostate cancer and 1 patient known to have prostate cancer were examined at 3 T with a multichannel body-receive coil...
June 19, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28625714/proteomic-analysis-of-seminal-plasma-from-locally-adapted-curraleiro-p%C3%A3-duro-bulls-bos-taurus-identifying-biomarkers-involved-in-sperm-physiology-in-endangered-animals-for-conservation-of-biodiversity
#7
E B Menezes, R V de Oliveira, M F van Tilburg, E A Barbosa, N V Nascimento, A L M C S Velho, F B Moreno, R A Moreira, A C O Monteiro-Moreira, G M C Carvalho, A F Ramos, E Memili, A A Moura
The present study was aimed at evaluating the seminal plasma proteins and sperm parameters of Curraleiro Pé-Duro bulls. Semen was collected from 10 bulls by electroejaculation, and sperm parameters were evaluated in fresh and frozen-thawed semen. Seminal plasma proteins were analyzed by 2-D SDS-PAGE and mass spectrophotometry. Tools in computational biology were used to generate bioinformatic knowledge and evaluate gene ontology, protein-protein interactions, phylogenetic trees and multiple sequence alignments...
May 29, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28613201/-evaluation-of-a-seminal-vesicle-biopsy-protocol-simultaneous-to-diagnostic-prostate-biopsy-analysis-of-indication-criteria
#8
Raúl Montoya Chinchilla, Antonio Rosino Sánchez
OBJECTIVES: To analyze the indication criteria used for conducting seminal vesicles biopsies as well as the diagnostic capacity of other variables involved. METHODS: We present the results of an observational and retrospective study (May 2006 - December 2012) using a sample of 140 patients to whom seminal vesicles biopsies was performed in a first set of prostate biopsy. They were patients eligible for curative treatment and presented any of the following criteria: PSA ≥15 ng/ml, suspicion of neoplastic seminal vesicle invasion on transrectal US, and/or suspicious node in the prostate base on DRE or transrectal US...
June 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28613106/innovative-array-based-assay-for-omics-pattern-in-melanoma
#9
Carmen Dumitru, Carolina Constantin, Cristiana Popp, Mirela Cioplea, Sabina Zurac, Tatiana Vassu, Monica Neagu
Cutaneous melanoma remains a major health issue and still an important challenge for research. Thus omics complex evaluation can provide a more specific molecular classification for this heterogeneous disease. Complex omics analysis based on genomic and proteomic microarrays can identify disease markers that prognosticate disease evolution or can monitor therapies efficacy. Among the technologies that gained momentum in the last years, array based comparative genomic hybridization offered the possibility to analyze chromosomal numerical aberrations within cutaneous melanomas providing important support for molecular classification of melanoma tumors...
June 14, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28611113/active-paraoxonase-1-is-synthesised-throughout-the-internal-boar-genital-organs
#10
Isabel Barranco, Cristina Perez-Patiño, Asta Tvarijonaviciute, Inmaculada Parrilla, Alejandro Vicente-Carrillo, Manuel Alvarez-Rodriguez, Jose J Ceron, Emilio Martinez, Heriberto Rodriguez-Martinez, Jordi Roca
The paraoxonase type 1 (PON1) is an enzyme with antioxidant properties recently identified in the seminal plasma (SP) of several species, including the porcine. The aims of the present study were to (1) describe the inmunohistochemical localization of PON1 in the genital organs of fertile boars and (2) evaluate the relationship among PON1 activity and high-density lipoprotein cholesterol (HDL-C) concentration in fluids of the boar genital organs. Immunohistochemical analysis demonstrated that PON1 was present in testis (specifically in Leydig cells, blood vessels, spermatogonia and elongated spermatids), epididymis (specifically in the cytoplasm of the principal epithelial cells, luminal secretion and in the surrounding smooth muscle) and the lining epithelia of the accessory sexual glands (cytoplasmic location in the prostate and membranous in the seminal vesicle and bulbourethral glands)...
June 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28610548/combining-forward-and-backward-mortality-estimation
#11
Dan A Black, Yu-Chieh Hsu, Seth G Sanders, Lowell J Taylor
Demographers often form estimates by combining information from two data sources-a challenging problem when one or both data sources are incomplete. A classic example entails the construction of death probabilities, which requires death counts for the subpopulations under study and corresponding base population estimates. Approaches typically entail 'back projection', as in Wrigley and Schofield's seminal analysis of historical English data, or 'inverse' or 'forward projection' as used by Lee in his important reanalysis of that work, both published in the 1980s...
June 14, 2017: Population Studies
https://www.readbyqxmd.com/read/28599293/dysregulation-of-an-x-linked-primate-specific-epididymal-microrna-cluster-in-unexplained-asthenozoospermia
#12
Xingrong Qing, Jian Shi, Tingting Dong, Chunlin Wu, Lian Hu, Honggang Li
Asthenoszoopermia, characterized by reduced sperm motility, is one of the primary forms of male infertility. Whereas most cases were diagnosed into unexplained asthenozoospermia (UA) because the etiology cannot be identified. In animal models, epigenetic dysregulation in epididymis can impair sperm maturation and result in asthenozoospermia. However, researches of epididymal epigenetic regulation on humans are impeded by the difficulty in obtaining epididymal tissues. We previously identified cell-free seminal microRNAs predominately derived from epididymis in human ejaculate...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28595357/the-alzheimer-s-disease-transcriptome-mimics-the-neuroprotective-signature-of-igf-1-receptor-deficient-neurons
#13
Caroline George, Géraldine Gontier, Philippe Lacube, Jean-Christophe François, Martin Holzenberger, Saba Aïd
Seminal studies using post-mortem brains of patients with Alzheimer's disease evidenced aberrant insulin-like growth factor 1 receptor (IGF1R) signalling. Addressing causality, work in animal models recently demonstrated that long-term suppression of IGF1R signalling alleviates Alzheimer's disease progression and promotes neuroprotection. However, the underlying mechanisms remain largely elusive. Here, we showed that genetically ablating IGF1R in neurons of the ageing brain efficiently protects from neuroinflammation, anxiety and memory impairments induced by intracerebroventricular injection of amyloid-β oligomers...
June 8, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28595175/untreated-psoriasis-impairs-male-fertility-a-case-control-study
#14
Giacomo Caldarola, Domenico Milardi, Giuseppe Grande, Andrea Quercia, Silvia Baroni, Renato Morelli, Riccardo Marana, Alfredo Pontecorvi, Clara De Simone, Ketty Peris
BACKGROUND: Recent evidence indicates that a systemic state of inflammation may impair fertility, but data about psoriatic males are scarce. OBJECTIVES: The aim of this study was to assess gonadal function in psoriatic males implementing our knowledge about fertility in these subjects. METHODS: Male psoriatic patients, aged between 18 and 55 years, and a group of healthy subjects matched for age, BMI and geographic origin were enrolled. All subjects underwent a complete physical and andrological examination, standard semen analysis, complete microbiological analysis and ultrasound evaluation of sexual glands...
June 9, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28590015/mucinous-adenocarcinoma-of-prostate-and-prostatic-adenocarcinoma-with-mucinous-components-a-clinicopathological-analysis-of-143-cases
#15
Hemamali Samaratunga, Brett Delahunt, John R Srigley, John Yaxley, Shulammite Johannsen, Geoffrey Coughlin, Troy Gianduzzo, Boon Kua, Imogen Patterson, John N Nacey, Lars Egevad
The clinical significance of mucinous prostatic adenocarcinoma remains uncertain. From 6440 cases of prostatic adenocarcinoma treated by radical prostatectomy and reported by Aquesta Uropathology from 2009 to 2014, mucinous components of 5-100% were found in 143 (2.2%). The mean age was 61.4 years, mean preoperative serum was PSA 7.8 ng/mL and clinical stage category was cT1 in 81% and cT2 in 19% of cases. Cases were graded using the 2014 International Society of Urological Pathology recommendation of grading the underlying architecture and Gleason scores were 3+4 in 13...
June 7, 2017: Histopathology
https://www.readbyqxmd.com/read/28589253/early-pet-imaging-with-68-ga-psma-11-increases-the-detection-rate-of-local-recurrence-in-prostate-cancer-patients-with-biochemical-recurrence
#16
Christian Uprimny, Alexander Stephan Kroiss, Josef Fritz, Clemens Decristoforo, Dorota Kendler, Elisabeth von Guggenberg, Bernhard Nilica, Johanna Maffey-Steffan, Gianpaolo di Santo, Jasmin Bektic, Wolfgang Horninger, Irene Johanna Virgolini
PURPOSE: PET/CT using (68)Ga-labelled prostate-specific membrane antigen PSMA-11 (HBEDD-CC) has emerged as a promising imaging method in the diagnostic evaluation of prostate cancer (PC) patients with biochemical recurrence. However, assessment of local recurrence (LR) may be limited by intense physiologic tracer accumulation in the urinary bladder on whole-body scans, normally conducted 60 min post-tracer injection (p.i.). It could be shown on early dynamic imaging studies that (68)Ga-PSMA-11 uptake in PC lesions occurs earlier than tracer accumulation in the urinary bladder...
June 6, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28583598/detection-of-macrophages-in-rabbit-semen-and-their-relationship-with-semen-quality
#17
Lenka Kuželová, Jaromír Vašíček, Ján Rafay, Peter Chrenek
We aimed at the evaluating the occurrence of macrophages in rabbit semen and finding possible relationship between macrophage concentration and spermatozoa quality. The concentration of macrophages in semen samples from broiler rabbit males of lines M91 and P91 (n = 30) without overt evidence of genital tract infections was determined using monocyte/macrophage lineage antigen CD14 and flow cytometry. Then the rabbits were assigned into three groups according to the macrophage concentration in semen (MΦ1 group with less than 1 × 10(6) macrophages/mL, MΦ2 group with 1...
July 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28581312/babies-math-a-meta-analysis-of-infants-simple-arithmetic-competence
#18
Joan Christodoulou, Andrew Lac, David S Moore
Wynn's (1992) seminal research reported that infants looked longer at stimuli representing "incorrect" versus "correct" solutions of basic addition and subtraction problems and concluded that infants have innate arithmetical abilities. Since then, infancy researchers have attempted to replicate this effect, yielding mixed findings. The present meta-analysis aimed to systematically compile and synthesize all of the primary replications and extensions of Wynn (1992) that have been conducted to date. The synthesis included 12 studies consisting of 26 independent samples and 550 unique infants...
June 5, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28576910/large-bilateral-seminal-vesicle-calculi-presenting-with-spermolithiasis
#19
Sarah Anne Williams, Michelle Christodoulidou, Raj Nigam
A 34-year-old male presented with an 8-month history of passing increasingly painful 'grit' in his ejaculate. Semen analysis was normal as were urinary and blood tests. T1-weighted MRI revealed several bilateral high-signal areas measuring up to 1 cm in diameter, located in the seminal vesicles. These were confirmed as calculi on T2-weighted imaging and a seminal vesiculogram, with no drainage from the left ejaculatory duct and only minimal from the right duct. He is currently awaiting a robot-assisted laparoscopic vesiculotomy after completion of family...
June 2, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28552819/prostate-cancer-antigen-3-pca3-score-does-not-predict-for-adverse-pathologic-features-at-radical-prostatectomy-or-for-progression-free-survival-in-clinically-localized-intermediate-and-high-risk-prostate-cancer
#20
John V Hegde, Darlene Veruttipong, Jonathan W Said, Robert E Reiter, Michael L Steinberg, Christopher R King, Amar U Kishan
OBJECTIVES: To evaluate whether pre-operative urinary prostate cancer antigen 3 (PCA3) scores predict for adverse pathologic features (APFs) and/or progression-free survival (PFS) in men with intermediate- or high-risk prostate cancer (PCa) undergoing radical prostatectomy (RP). METHODS: One-hundred-nine men with intermediate- (n=52) or high-risk (n=57) PCa who underwent RP were retrospectively identified. Logistic regression analysis was performed to evaluate the association of PCA3 score with various APFs (e...
May 25, 2017: Urology
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