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https://www.readbyqxmd.com/read/28441629/sex-matters-the-effects-of-biological-sex-on-adipose-tissue-biology-and-energy-metabolism
#1
REVIEW
Teresa G Valencak, Anne Osterrieder, Tim J Schulz
Adipose tissue is a complex and multi-faceted organ. It responds dynamically to internal and external stimuli, depending on the developmental stage and activity of the organism. The most common functional subunits of adipose tissue, white and brown adipocytes, regulate and respond to endocrine processes, which then determine metabolic rate as well as adipose tissue functions. While the molecular aspects of white and brown adipose biology have become clearer in the recent past, much less is known about sex-specific differences in regulation and deposition of adipose tissue, and the specific role of the so-called pink adipocytes during lactation in females...
April 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28441609/dechlorane-plus-induces-oxidative-stress-and-decreases-cyclooxygenase-activity-in-the-blue-mussel
#2
Pierre-Luc Gagné, Marlène Fortier, Marc Fraser, Lise Parent, Cathy Vaillancourt, Jonathan Verreault
Dechlorane Plus (DP) is a chlorinated flame retardant used mainly in electrical wire and cable coating, computer connectors, and plastic roofing materials. Concentrations of DP (syn and anti isomers) are increasingly being reported in aquatic ecosystems worldwide. However, there is exceedingly little information on the exposure-related toxicity of DP in aquatic organisms, especially in bivalves. The objective of this study was to investigate the in vivo and in vitro effects of DP exposure on histopathology, lipid peroxidation (LPO) levels, cyclooxygenase (COX) activity, phagocytosis capacity and efficiency, and DNA strand breakage in the blue mussel (Mytilus edulis) following a 29days exposure (0...
April 17, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28441607/toxicity-assessment-of-zno-decorated-au-nanoparticles-in-the-mediterranean-clam-ruditapes-decussatus
#3
Badreddine Sellami, Amine Mezni, Abdelhafidh Khazri, Imen Bouzidi, Wiem Saidani, David Sheehan, Hamouda Beyrem
The synthesis of hybrid nanomaterials has greatly increased in recent years due to their special physical and chemical properties. However, information regarding the environmental toxicity associated with these chemicals is limited, in particular in the aquatic environment. In the present study, an experiment was performed in which the marine bivalve (Ruditapes decussatus) was exposed for 14days to 2 concentrations of zinc oxide-decorated Au nanoparticles (Au-ZnONPs: Au-ZnONP50=50μg/L; Au-ZnONP100=100μg/L)...
April 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28441593/a-comprehensive-evaluation-of-the-environmental-quality-of-a-coastal-lagoon-ravenna-italy-integrating-chemical-and-physiological-analyses-in-mussels-as-a-biomonitoring-strategy
#4
Marco Capolupo, Silvia Franzellitti, Alisar Kiwan, Paola Valbonesi, Enrico Dinelli, Emanuela Pignotti, Manfred Birke, Elena Fabbri
This study aimed at evaluating the environmental quality of a coastal lagoon (Pialassa Piomboni, NW-Adriatic, Italy) by combining analyses of biomarkers of environmental stress and bioaccumulation of contaminants in marine mussels (Mytilus galloprovincialis) transplanted for 28days to six selected sites. Assessed biomarkers encompassed lysosomal endpoints, oxidative stress and detoxification parameters, specific responses to metals, neuro- and genotoxic substances; chemical analyses focused on PAHs, metals, pesticide and pharmaceuticals...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28441468/histological-study-of-white-rhinoceros-integument
#5
Jeffrey H Plochocki, Saul Ruiz, José R Rodriguez-Sosa, Margaret I Hall
In this study, we report findings from a microscopic analysis of the white rhinoceros (Ceratotherium simum) integumentary ultrastructure. Skin samples from the cheek, shoulder, flank and rump were taken from a 46-year-old female southern white rhinoceros and examined using H&E and elastic histological stains. The epidermis was thickest in the flank (1.003 mm) followed by the rump, cheek and shoulder. The stratum corneum comprised more than half the epidermal thickness. Numerous melanin granules were found in the basal and spinosum layers...
2017: PloS One
https://www.readbyqxmd.com/read/28441249/epidemiology-of-second-primary-tumors-in-women-with-ovarian-cancer
#6
Tomi T Kanninen, Dimitrios Nasioudis, Giovanni Sisti, Kevin Holcomb, Mariarosaria Di Tommaso, Susan Khalil, Anar Gojayev, Steven S Witkin
OBJECTIVE: The last large study of second primary tumors (SPTs) in women with ovarian cancer was published in 1996, prior to major changes in the differential diagnosis and treatment. The present study reports on the incidence of SPTs in a contemporary cohort of patients with a diagnosis of ovarian cancer. METHODS: Ovarian cancer patients with a diagnosis of an ovarian malignancy between 1992 and 2012 were identified and characterized from 13 registries of the Surveillance, Epidemiology, and End Results database...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28440754/novel-aspects-in-histopathology-of-the-pituitary-gland
#7
Francisco Tortosa, Susan M Webb
The sellar and parasellar region is a complex anatomical area in which several diseases may develop. The pituitary gland may be affected by a wide range of conditions having similar clinical characteristics. Diagnosis of these lesions requires a multidisciplinary approach including, in addition to clinical, laboratory, imaging, and surgical findings, histological diagnosis of pituitary adenomas to guide therapeutic management. As the result of development in recent years of new immunohistochemical techniques, histopathological classification has become more complex and wide, and not only continues to be the gold standard in diagnosis, but also has prognostic implications...
March 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440555/striated-duct-adenoma-presenting-with-intra-tumoral-hematoma-and-papillary-thyroid-carcinoma-like-histology
#8
Yohei Ito, Kana Fujii, Takayuki Murase, Kosuke Saida, Yoshihide Okumura, Hisashi Takino, Ayako Masaki, Shintaro Beppu, Daisuke Kawakita, Kei Ijichi, Hiroshi Inagaki
Striated duct adenoma of the salivary gland is a rare benign tumor characterized by unilayered duct epithelium and striations of the tumor cell membranes. To the best of our knowledge, only six cases have been reported in the literature. Here we report an additional case, which was complicated by an intra-tumoral hematoma on clinical presentation and by papillary thyroid carcinoma-like histology on intra-operative frozen section diagnosis. An asymptomatic 78-year-old male presented with a two-year-history of a painless tumor of the left parotid...
April 25, 2017: Pathology International
https://www.readbyqxmd.com/read/28440253/evaluation-of-meibomian-gland-and-tear-film-changes-in-patients-with-pterygium
#9
Fen Ye, Fen Zhou, Yuan Xia, Xiaomin Zhu, Yan Wu, Zhenping Huang
BACKGROUND: Recent studies have demonstrated that pterygium has a close relationship with dry eye disease. This study is to determine abnormalities in meibomian gland and tear function in patients with pterygium and to assess the relationship between the variables. MATERIALS AND METHODS: Forty eyes from forty patients with primary nasal pterygium and forty eyes from forty volunteers without ocular pathologies were enrolled in this study. Ocular surface disease index scores, meibomian gland expression scores, lid margin abnormality scores, meiboscore, tear film breakup time (BUT), Schirmer test (SIT) value, and the lower tear meniscus height (TMH), tear meniscus depth (TMD), and tear meniscus area (TMA) using Fourier domain optical coherence were performed...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28440242/esophageal-adenocarcinoma-metastasis-in-the-left-adrenal-gland-diagnosed-by-endoscopic-ultrasound-guided-fine-needle-aspiration
#10
Everton Hadlich, Augusto P C Carbonari, Maurício S Assef, Osvaldo M Araki, Frank S Nakao, Mauro T A Saieg, Lúcio G B Rossini
No abstract text is available yet for this article.
March 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28439689/divergent-schwannoma-like-phenotype-in-a-pleomorphic-adenoma
#11
Srinivasa R Chandra, Farah Karim, Yeshwant B Rawal
The schwannoma-like pleomorphic adenoma is a rare histopathological variant of the pleomorphic adenoma. Five previous reports with seven cases exist in English language literature. These tumors present in the parotid gland most commonly. Intraparotid schwannomas of the facial nerve and schwannomas with glandular differentiation have also been reported. A 60-year-old male presented with an asymptomatic swelling over the left angle of the mandible. The swelling had been present for about 12 years with a recent increase in size...
April 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28439625/-direct-mpr-a-useful-tool-for-oblique-ct-fluoroscopy-assisted-puncture
#12
Rui Sato, Takeshi Aramaki, Kiichiro Yoza, Kenji Iwai, Michihisa Moriguchi, Koiku Asakura, Masahiro Endo, Takahiro Ito
OBJECTIVE: Conventional multiplanar reconstruction (MPR) imaging can be used as a tool for planning oblique puncture procedures, but it takes a few minutes to reconstruct and is not appropriate for real-time CT fluoroscopy-assisted puncture. Recently, new MPR technology has been used that requires only 8 s and makes it possible to obtain a nearly real-time CT fluoroscopy-assisted oblique puncture. We refer to it as "direct MPR." This is the first clinical report of this technique. METHODS: Since February 2016, we have performed real-time, CT-guided oblique punctures with this new technology, "direct MPR," using an angio-CT system...
April 24, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28439616/-high-intensity-focused-ultrasound-hifu-importance-in-the-treatment-of-prostate-cancer
#13
R Ganzer
BACKGROUND: High intensity focused ultrasound (HIFU) has been used since the beginning of the 1990s as an alternative treatment for prostate cancer. OBJECTIVE: Overview of the current status and critical review of the different indications for HIFU in the treatment of prostate cancer. MATERIAL AND METHODS: Review of the current literature on the indications, side effects, oncologic results and current guideline recommendations. RESULTS: The principle of HIFU is based on high energy sound waves, which lead to coagulation necrosis at the focal point...
April 24, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28439543/saving-the-injured-rescue-behavior-in-the-termite-hunting-ant-megaponera-analis
#14
Erik Thomas Frank, Thomas Schmitt, Thomas Hovestadt, Oliver Mitesser, Jonas Stiegler, Karl Eduard Linsenmair
Predators of highly defensive prey likely develop cost-reducing adaptations. The ant Megaponera analis is a specialized termite predator, solely raiding termites of the subfamily Macrotermitinae (in this study, mostly colonies of Pseudocanthotermes sp.) at their foraging sites. The evolutionary arms race between termites and ants led to various defensive mechanisms in termites (for example, a caste specialized in fighting predators). Because M. analis incurs high injury/mortality risks when preying on termites, some risk-mitigating adaptations seem likely to have evolved...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28439535/a-murine-preclinical-syngeneic-transplantation-model-for-breast-cancer-precision-medicine
#15
Lorenzo Federico, Zechen Chong, Dong Zhang, Daniel J McGrail, Wei Zhao, Kang Jin Jeong, Christopher P Vellano, Zhenlin Ju, Mihai Gagea, Shuying Liu, Shreya Mitra, Jennifer B Dennison, Philip L Lorenzi, Robert Cardnell, Lixia Diao, Jing Wang, Yiling Lu, Lauren A Byers, Charles M Perou, Shiaw-Yih Lin, Gordon B Mills
We previously demonstrated that altered activity of lysophosphatidic acid in murine mammary glands promotes tumorigenesis. We have now established and characterized a heterogeneous collection of mouse-derived syngeneic transplants (MDSTs) as preclinical platforms for the assessment of personalized pharmacological therapies. Detailed molecular and phenotypic analyses revealed that MDSTs are the most heterogeneous group of genetically engineered mouse models (GEMMs) of breast cancer yet observed. Response of MDSTs to trametinib, a mitogen-activated protein kinase (MAPK) kinase inhibitor, correlated with RAS/MAPK signaling activity, as expected from studies in xenografts and clinical trials providing validation of the utility of the model...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28439498/gastric-and-duodenal-polyps-in-familial-adenomatous-polyposis-patients-conventional-endoscopy-vs-virtual-chromoendoscopy-fujinon-intelligent-color-enhancement-in-dysplasia-evaluation
#16
Gabriele Lami, Andrea Galli, Giuseppe Macrì, Emanuele Dabizzi, Maria Rosa Biagini, Mirko Tarocchi, Luca Messerini, Rosa Valanzano, Stefano Milani, Simone Polvani
AIM: To test the fujinon intelligent color enhancement (FICE) in identifying dysplastic or adenomatous polyps in familial adenomatous polyposis (FAP) patients. METHODS: Seventy-six consecutive FAP patients, already treated by colectomy and members of sixty-five families, were enrolled. A FICE system for the upper gastro-intestinal tract with an electronic endoscope system and a standard duodenoscope (for side-viewing examination) were used by two expert examiners...
April 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28439429/the-standards-of-an-ultrasound-examination-of-the-prostate-gland-part-2
#17
REVIEW
Janusz F Tyloch, Andrzej Paweł Wieczorek
The paper discusses the rules of the proper performing of the ultrasound examination of the prostate gland. It has been divided into two parts: the general part and the detailed part. The first part presents the necessary requirements related to the ultrasound equipment needed for performing transabdominal and transrectal examinations of the prostate gland. The second part presents the application of the ultrasound examination in benign prostatic hyperplasia, in cases of prostate inflammation and in prostate cancer...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28439424/comparison-of-scintigraphy-and-ultrasound-imaging-in-patients-with-primary-secondary-and-tertiary-hyperparathyroidism-own-experience
#18
Małgorzata Kobylecka, Maria Teresa Płazińska, Witold Chudziński, Katarzyna Fronczewska-Wieniawska, Joanna Mączewska, Adam Bajera, Maria Karlińska, Leszek Królicki
BACKGROUND: The imaging techniques most commonly used in the diagnosis of hyperparathyroidisms are ultrasound and scintigraphy. The diagnostic algorithms vary, depending mainly on the population, and experience of physicians. AIM: Aim of the present research was to determine the usefulness of parathyroid scintigraphy and ultrasonography in patients diagnosed for hyperparathyroidism in own material. MATERIAL AND METHOD: In the present research, 96 operated patients with documented primary, secondary and tertiary hyperparathyroidism were retrospectively analyzed...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28439160/ranula-decompression-using-stitch-and-stab-method-the-aluko-technique
#19
Bayo Aluko-Olokun, Ademola Abayomi Olaitan
BACKGROUND: A ranula is a cystic lesion in the floor of the mouth, formed either as a retention cyst or pseudocyst as a result of extravasation of mucus in the surrounding tissue. It may be treated by micro-marsupialization, marsupialization or excision of lesion with or without the associated salivary gland. Marsupialization is usually achieved by cutting a slit and thereafter stitching the edges such that the epithelium of the exterior becomes continuous with that of the interior of a cyst...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439080/ets-related-gene-mediated-androgen-receptor-aggregation-and-endoplasmic-reticulum-stress-in-prostate-cancer-development
#20
Taduru L Sreenath, Shiela S Macalindong, Natallia Mikhalkevich, Shashwat Sharad, Ahmed Mohamed, Denise Young, Talaibek Borbiev, Charles Xavier, Rishita Gupta, Muhammad Jamal, Kevin Babcock, Shyh-Han Tan, Marja T Nevalainen, Albert Dobi, Gyorgy Petrovics, Isabell A Sesterhenn, Inger L Rosner, Charles J Bieberich, Peter Nelson, Valeri Vasioukhin, Shiv Srivastava
Mechanistic studies of deregulated ERG in prostate cancer and other cancers continue to enhance its role in cancer biology and its utility as a biomarker and therapeutic target. Here, we show that ERG, through its physical interaction with androgen receptor, induces AR aggregation and endoplasmic reticulum stress in the prostate glands of ERG transgenic mice. Histomorphological alterations and the expression of ER stress sensors Atf6, Ire1α, Perk, their downstream effectors Grp78/BiP and eIF2α in ERG transgenic mouse prostate glands indicate the presence of chronic ER stress...
April 24, 2017: Scientific Reports
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