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Histology and Histopathology

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https://www.readbyqxmd.com/read/28105630/histopathological-features-of-endometritis-eosinophilica-in-mares
#1
Anna Lena Grimm, Heinz-Adolf Schoon, Sandra Schöniger
Equine endometritis eosinophilica (EE) is rarely described and its diagnostic criteria are not defined. The aim of this study was to characterize histological features of EE. A data base (1995-2013) was searched for biopsies with increased eosinophils. This study included all biopsies with this diagnosis and representative biopsies without this record. The definition of equine EE was based on criteria for EE in women and the results of the determination of physiological numbers of eosinophils within the equine endometrium...
January 20, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28101875/sustanon-induces-dose-independent-hypertrophy-and-satellite-cell-proliferation-in-slow-oxidative-fibers-of-avian-skeletal-muscle
#2
Mohammed Z Allouh, Ahmad A Jarrar, Hasan A Asfour, Raed S Said, Emad I Shaqoura
Sustanon is a well-known anabolic drug that is used to treat hypogonadism and restore muscle mass and bone density. As research to date has been limited to its effects in glycolytic fibers, this study aimed to investigate the dose-related effects of Sustanon on the oxidative fibers of avian skeletal muscle. Adult female chickens were randomly divided into 4 groups: control (C), received a dose of 100 μl normal saline per injection; and Sustanon-1, -2, and -3 (S1, S2, and S3), that received a dose of 12.5, 25, or 50 mg/kg Sustanon per injection, respectively...
January 19, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28097642/adrenal-cyst-with-both-m%C3%A3-llerian-and-mesothelial-differentiation-a-clinicopathological-and-immunohistochemical-study-with-implications-for-histogenesis
#3
Łukasz Koperski, Benedykt Szczepankiewicz, Paweł Pihowicz, Łukasz Fus, Ewa Wolińska, Barbara Górnicka
True epithelial-lined cysts are rare forms of adrenal cystic lesions, the pathogenesis of which is still not fully understood. In this report we present a case of an adrenal cyst diagnosed incidentally on imaging in a 31-year-old, previously healthy, obese woman. Due to non-specific hormonal disorders and enlargement of the lesion, a right-sided laparoscopic adrenalectomy was performed. The cyst was lined predominantly by ciliated cuboidal-to-columnar, Müllerian-type epithelium, and focally by flat-to-cuboidal, mesothelium-like lining...
January 18, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28090628/erk1-2-jnk-and-stat3-activation-and-correlation-with-tumor-differentiation-in-oral-scc
#4
I Gkouveris, N Nikitakis, D Avgoustidis, M Karanikou, G Rassidakis, A Sklavounou
Signal transducer and activator of transcription 3 (STAT3) and mitogen activated protein kinases (MAPKs), including ERK and JNK, have been implicated in oral squamous cell carcinoma (OSCC) development and progression. Our purpose was to evaluate the levels of activated STAT3, ERK1/2 and JNK by immunohistochemistry in OSCC and to investigate possible correlations of these molecules with each other as well as with the degree of tumor differentiation. Immunohistochemical assessment of the phosphorylated levels of STAT3(tyrosine/ serine), ERK1/2 and JNK was performed in 60 OSCC, including well, moderately and poorly differentiated tumors...
January 16, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28083862/pathogenicity-assessment-of-wild-type-and-mouse-adapted-influenza-a-h1n1-pdm09-viruses-in-comparison-with-highly-pathogenic-influenza-a-h5n1-virus
#5
E A Prokopyeva, A A Romanovskaya, K A Sharshov, A V Zaykovskaya, A A Alekseev, A M Shestopalov
Here we compare the results of pathological and virological examinations of mice experimentally infected with either wild-type or mouse-adapted pandemic A(H1N1) pdm09 viruses and highly pathogenic avian influenza (HPAI) virus A(H5N1). Mice were sacrificed on days 1, 3, 6, and 10 post infection or whenever morbidity was severe enough to justify euthanasia. Morbidity rates were calculated on the basis of clinical signs (weight loss, poor hair coat, hunched posture and paresis); virus-induced disease was characterised by the histopathology of lung; virus dissemination was determined by virus isolation on organ samples of lung, brain, liver, kidney and spleen...
January 13, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28078661/role-of-cytokines-in-host-defense-against-staphylococcus-aureus-skin-infection
#6
REVIEW
Guosheng Wu, Banghui Zhu, Xudong Hong, Pengfei Luo, Zhaofan Xia
Wound infection caused by Staphylococcus aureus (S. aureus) is a critical clinical problem due to long hospitalization times, significant morbidity and mortality, as well as considerable medical resource consumption. With the emergence of methicillin-resistant S. aureus (MRSA) strains, current antibiotic treatments are becoming ineffective in combatting S. aureus infection. Thus, a novel therapeutic strategy is required. Recent studies discovered that several cytokines in the infected wound area play protective roles against S...
January 12, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28035654/seven-days-post-injury-fate-and-effects-of-genetically-labelled-adipose-derived-mesenchymal-cells-on-a-rat-traumatic-brain-injury-experimental-model
#7
Ioanna Dori, Spyros Petrakis, Aggeliki Giannakopoulou, Chryssa Bekiari, Ioannis Grivas, Evangelia K Siska, Georgios Koliakos, Georgios C Papadopoulos
Mesenchymal stromal cells (MSC) have been suggested to have beneficial effects on animal models of traumatic brain injury (TBI), owing to their neurotrophic and immunomodulatory properties. Adipose tissue-derived stromal cells (ASCs) are multipotent MSC that can be harvested with minimally invasive methods, show a high proliferative capacity, low immunogenicity if allogeneic, and can be used in autologous or heterologous settings. In the present study ASCs were genetically labelled using the Sleeping Beauty transposon to express the fluorescent protein Venus...
December 30, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28032888/corrigendum-to-high-glucose-concentration-induced-expression-of-pentraxin-3-in-a-rat-model-of-continuous-peritoneal-dialysis
#8
Nana Ishimatsu, Tetsu Miyamoto, Hiromichi Ueno, Emi Hasegawa, Akihiro Kuma, Yoko Fujimoto, Kenichiro Bando, Junichi Nakamata, Yumi Furuno, Ryota Serino, Ryoko Baba, Hiroyuki Morimoto, Yoshiaki Doi, Masahito Tamura, Yutaka Otsuji
This correct the article DOI: 10.14670/HH-11-756.
December 29, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28032328/targeting-exogenous-%C3%AE-defensin-to-the-endolysosomal-compartment-via-a-vehicle-guided-system
#9
Lorena Carvelli, Yuan Libin, Sherry Esfandnia, Yan Zhang, John F Presley, Carlos R Morales
A number of pathogens for which there are no effective treatments infect the cells via endocytosis. Once in the endosomes, the pathogens complete their life cycle by overriding normal lysosomal functions. Recently, our laboratory identified the lysosomal targeting signal of prosaposin, which is recognized by the sorting receptor "sortilin". Based on this evidence, we tested whether the antimicrobial peptide β-Defensin linked to the targeting sequence of prosaposin (βD-PSAP) could be redirected from its secretory pathway to the endolysosomal compartment...
December 29, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28028797/glut1-mct1-4-and-cd147-overexpression-supports-the-metabolic-reprogramming-in-papillary-renal-cell-carcinoma
#10
L M C A Almeida, R Silva, B Cavadas, J Lima, L Pereira, P Soares, M Sobrinho-Simões, J M Lopes, V Máximo
Papillary Renal Cell carcinoma (pRCC) is the second most common type of RCC, accounting for about 15% of all RCCs. Surgical excision is the main treatment option. Still, 10 - 15 % of clinically localized tumours will recur and/or develop metastasis early after surgery, and no reliable prognostic biomarkers are available to identify them. It is known that pRCC cells rely on high rates of aerobic glycolysis, characterized by the up-regulation of many proteins and enzymes related with the glycolytic pathway. However, a metabolic signature enabling the identification of advanced pRCC tumours remains to be discovered...
December 28, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28026004/ethanol-enhances-thymocyte-apoptosis-and-autophagy-in-macrophages-of-rat-thymi
#11
Tsubasa Betsuyaku, Nabil Eid, Yuko Ito, Yoshihisa Tanaka, Yoshinori Otsuki, Yoichi Kondo
Tingible body macrophages (TBMs) play essential roles in the phagocytosis of apoptotic lymphocytes, specifically under exposure to various stressors. Although excessive ethanol consumption may enhance thymocyte apoptosis, reports investigating the autophagic response of the thymus to ethanol toxicity are still lacking. We investigated apoptosis and autophagy in thymi of an animal model of binge ethanol exposure. Adult male Wistar rats were injected intraperitoneally either with 5 g/kg ethanol or phosphate buffer saline (for the control group) and sacrificed 0, 3, 6 and 24 hours after injection...
December 27, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28008592/chitooligosaccharide-promotes-immune-organ-development-in-broiler-chickens-and-reduces-serum-lipid-levels
#12
Li Shenghe, Jin Erhui, Qiao Enmei, Wu Guozhong, Li Kui
This study investigated the effects of chitooligosaccharide on lipid metabolism, immune organ development, and lymphocyte apoptosis in broiler chickens. A total of 480 one-day-old broiler chickens (Arbor Acres) were randomly and evenly assigned to control group and experimental groups I, II, and III. The control group was given a basic diet, while experimental groups I, II, and III were given basic diets for 42 days, supplemented with 50 mg/kg chlortetracycline, 20, and 40 mg/kg chitooligosaccharide, respectively...
December 23, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28000202/micro-rna-signature-of-lymphovascular-space-involvement-in-type-1-endometrial-cancer
#13
Geoffroy Canlorbe, Mathieu Castela, Sofiane Bendifallah, Zhe Wang, Marine Lefevre, Nathalie Chabbert-Buffet, Selim Aractingi, Emile DaraÏ, Céline Méhats, Marcos Ballester
OBJECTIVE: Lymphovascular space involvement (LVSI) is a major prognostic factor in type 1 endometrial cancer (EC). However, its use has been criticized because of poor subjectivity. MicroRNA signatures have recently been linked to EC pathologic characteristics. The aim of this study was to evaluate whether microRNA profiles of type 1 EC can be related to LVSI status and used as a tool to adapt therapy. STUDY DESIGN: MicroRNA expression was assessed by chip analysis and qRT-PCR in 12 formalin-fixed paraffin-embedded grade 2 EC specimens with positive LVSI and in 12 specimens with negative LVSI...
December 21, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27995596/development-of-biological-tools-to-assess-the-role-of-tmprss4-and-identification-of-novel-tumor-types-with-high-expression-of-this-prometastatic-protein
#14
Maria Villalba, Lissett Lopez, Miriam Redrado, Tamara Ruiz, Arrate L de Aberasturi, Nuria de la Roja, David Garcia, Francisco Exposito, Carlos de Andrea, Emilio Alvarez-Fernandez, Luis Montuenga, Paloma Rueda, Maria Jose Rodriguez, Alfonso Calvo
Metastatic spread is responsible for the majority of cancer deaths and identification of metastasis-related therapeutic targets is compulsory. TMPRSS4 is a pro-metastatic druggable transmembrane type II serine protease whose expression has been associated with the development of several cancer types and poor prognosis. To study the role and expression of this protease in cancer, we have developed molecular tools (active recombinant proteins and a polyclonal antibody) that can be used for diagnostic purposes and for testing anti-TMPRSS4 drugs...
December 20, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27990624/vascular-mimicry-in-glioblastoma-following-anti-angiogenic-and-anti-20-hete-therapies
#15
Kartik Angara, Mohammad H Rashid, Adarsh Shankar, Roxan Ara, Asm Iskander, Thaiz F Borin, Meenu Jain, Bhagelu R Achyut, Ali S Arbab
Glioblastoma (GBM) is one hypervascular and hypoxic tumor known among solid tumors. Antiangiogenic therapeutics (AATs) have been tested as an adjuvant to normalize blood vessels and control abnormal vasculature. Evidence of relapse exemplified in the progressive tumor growth following AAT reflects development of resistance to AATs. Here, we identified that GBM following AAT (Vatalanib) acquired an alternate mechanism to support tumor growth, called vascular mimicry (VM). We observed that Vatalanib induced VM vessels are positive for periodic acid-Schiff (PAS) matrix but devoid of any endothelium on the inner side and lined by tumor cells on the outer-side...
December 19, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27981526/molecular-mechanisms-in-bone-mechanotransduction
#16
REVIEW
Marta Maycas, Pedro Esbrit, Arancha R Gortázar
Bone is one of the most adaptable tissues in the body as it is continuously subjected to load bearing. In fact, mechanical loading is an important regulator of bone mass. The skeleton adjusts to load by changing its mass, shape and microarchitecture, depending on the magnitude of the strain. Mechanical stimulation is necessary for the development of the skeleton, whereas in adults physiological levels of strain help maintain bone mass by reducing bone resorption. On the other hand, an excessive level of strain or bone disuse induces bone loss...
December 16, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27966208/puerarin-and-zinc-additively-prevent-mandibular-bone-loss-through-inhibiting-osteoclastogenesis-in-ovariectomized-rats
#17
Hao Liu, Wei Li, Shengnan Jia, Binbin Li
Puerarin and zinc play a key role in preventing osteoporotic-related bone loss. Previous research on puerarin or zinc mainly focused on the anti-osteoporotic effects of long bone. However, it is obscure for puerarin or zinc to prevent mandibular osteoporosis. Here, we explore the effects on additive coadministration of puerarin and zinc on preventing mandibular bone loss in ovariectomized rats, and evaluate the underlying mechanisms ex vivo. Rats were ovariectomized and administrated puerarin, zinc or both...
December 14, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27943232/distinct-presence-of-the-tight-junction-protein-claudin-3-in-olfactory-bulb-and-fila-olfactoria-of-the-mouse
#18
Elisabeth Eppler, Magdalena Müller-Gerbl, I Piotr Maly
The tight junction protein claudin-3 is overexpressed in diverse epithelial tumours and is associated with increased survival, progression and motility of tumour cells. Claudin-3 expression profiles are being increasingly used for diagnostic and prognostic tumour classification. Claudin-3 has been identified as a receptor for Clostridium perfringens enterotoxin, which is under consideration for selective lysis of claudin-3-expressing tumours, particularly brain metastases, and other translational medicine uses...
December 12, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27933602/fish-tales-the-use-of-zebrafish-xenograft-human-cancer-cell-models
#19
REVIEW
Yvette Drabsch, B Ewa Snaar-Jagalska, Peter Ten Dijke
Advances in scientific techniques have provided researchers with exceptional new opportunities to identify and monitor changes between different cancer types, during different stages of progression, between individual tumor cells and in the surrounding stroma. The wealth of information that can be obtained from new scientific techniques places additional requirements on the conventional cancer models. New models that could be used to rapidly access the (potential) functional importance of newly identified (epi)genetic and proteomic changes and test the efficacy on emerging (combinatorial) therapies are desperately required...
December 9, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27924626/expression-of-the-activation-markers-blimp1-foxp1-and-pstat3-in-extranodal-diffuse-large-b-cell-lymphomas
#20
Georgios Petrakis, Ioannis Kostopoulos, Ioannis Venizelos, Maria Lambropoulou, Kyriakos Vouras, Sofia Vakalopoulou, Eudokia Mandala, Constantinos Tsatalas, Nicolas Papadopoulos
Different studies have suggested that the expression of biomarkers related to lymphoid cell activation may provide information on the behavior of DLBCL. Most studies have concentrated on nodal or a mixture of nodal and extranodal lymphomas. The differential expression and potential clinical impact of these markers in a homogeneous group of extranodal DLBCLs are not well defined. In this study, we investigated the expression of three activation markers, Blimp1, Foxp1 and pStat3, in a cohort of 35 extranodal DLBCLs homogeneously treated with R-CHOP...
December 7, 2016: Histology and Histopathology
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