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https://www.readbyqxmd.com/read/28812531/prolactinoma-in-a-dog
#1
Cristina Cosio, Elena Sartori, Marcello Garatti, Lorenzo Luccardini, G C M Grinwis, Hans S Kooistra, Federico Fracassi
A 12-year-old male Yorkshire Terrier was presented because of decreased appetite. Physical examination revealed mammary gland swelling and galactorrhea. Contrast-enhanced computed tomographic scanning of the skull indicated an enlarged pituitary gland, compatible with a pituitary tumor. The serum prolactin concentration was markedly elevated. One week after the start of treatment with the dopamine agonist cabergoline, the serum prolactin concentration normalized and the galactorrhea resolved. Cabergoline was administered for approximately 4 months and then discontinued...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28809839/a-novel-mammary-fat-pad-transplantation-technique-to-visualize-the-vessel-generation-of-vascular-endothelial-stem-cells
#2
Qing Cissy Yu, Wenqian Song, Dengwen Lai, Yi Arial Zeng
Endothelial cells (ECs) are the fundamental building blocks of the vascular architecture and mediate vascular growth and remodeling to ensure proper vessel development and homeostasis. However, studies on endothelial lineage hierarchy remain elusive due to the lack of tools to gain access as well as to directly evaluate their behavior in vivo. To address this shortcoming, a new tissue model to study angiogenesis using the mammary fat pad has been developed. The mammary gland develops mostly in the postnatal stages, including puberty and pregnancy, during which robust epithelium proliferation is accompanied by extensive vascular remodeling...
August 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28808353/milk-microbiome-and-bacterial-load-following-dry-cow-therapy-without-antibiotics-in-dairy-cows-with-healthy-mammary-gland
#3
Erika C R Bonsaglia, Marilia S Gomes, Igor F Canisso, Ziyao Zhou, Svetlana F Lima, Vera L M Rall, Georgios Oikonomou, Rodrigo C Bicalho, Fabio S Lima
Preventive infusion of antibiotics in the mammary gland of cows consumes 11 tons/year of medically relevant antimicrobials, yet, this practice might not be critical to prevent new infections in the healthy mammary gland of cows. Here, we used next-generation sequencing and quantitative real-time PCR to determine the impact of dry cow therapy without antibiotics on milk microbiome and bacterial load, respectively. Cows diagnosed as negative for mastitis at dry off were randomly allocated to receive antibiotic (intramammary ceftiofur hydrochloride) and teat sealant or just teat sealant...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28804941/proteomic-analysis-to-unravel-the-effect-of-heat-stress-on-gene-expression-and-milk-synthesis-in-bovine-mammary-epithelial-cells
#4
Lian Li, Yiru Wang, Chengmin Li, Genlin Wang
Heat stress can play a negative effect on milk yield and composition of dairy cattle, leading to immeasurable economic loss. The basic components of the mammary gland are the alveoli; these alveolar mammary epithelial cells reflect the milk producing ability of dairy cows. In this study, we exposed bovine mammary epithelial cells to heat stress and compared them to a control group using isobaric tags for relative and absolute quantitation combined with liquid chromatography coupled with tandem mass spectrometry...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28803018/short-communication-molecular-characteristics-antimicrobial-susceptibility-and-pathogenicity-of-clinical-nocardia-cyriacigeorgica-isolates-from-an-outbreak-of-bovine-mastitis
#5
Wei Chen, Yongxia Liu, Herman W Barkema, Jian Gao, Jeroen De Buck, John P Kastelic, Gang Liu, Tariq Ali, Muhammad Shahid, Bo Han
The occurrence of nocardial mastitis, mostly in the context of outbreaks, has been reported in many countries. However, there is a paucity of reports regarding detailed characterization of Nocardia cyriacigeorgica from bovine mastitis. Thus, herein we report characteristics, antimicrobial susceptibility patterns, molecular identification, and pathogenicity of N. cyriacigeorgica isolated from an outbreak of clinical mastitis in a dairy herd in northern China. A total of 182 (80.2%) lactating cows had clinical mastitis with severe inflammation and firmness of the udder, reduced milk production, and anorexia, with no apparent clinical response to common antibiotics...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28802370/a-systematic-review-including-an-additional-pediatric-case-report-pediatric-cases-of-mammary-analogue-secretory-carcinoma
#6
REVIEW
Amanda L Ngouajio, Sarah M Drejet, D Ryan Phillips, Don-John Summerlin, John P Dahl
IMPORTANCE: Mammary Analogue Secretory Carcinoma (MASC) is a newly characterized salivary gland carcinoma resembling secretory carcinoma of the breast. Prior to being described, MASC was most commonly misdiagnosed as Acinic Cell Carcinoma. Though MASC is predominantly an adult neoplasm, cases have been reported in the pediatric population. Reporting and summarizing of known cases is imperative to understand the prognosis and clinical behavior of MASC. OBJECTIVE: EVIDENCE REVIEW: Web of Science, Medline, EMBASE, and The Cochrane Library were searched for studies that included pediatric cases of MASC...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28801701/the-overexpression-of-hsp90b1-is-associated-with-tumorigenesis-of-canine-mammary-glands
#7
B V Sunil Kumar, Rabia Bhardwaj, Kanika Mahajan, Neeraj Kashyap, Ashwani Kumar, Ramneek Verma
Heat shock proteins (Hsp) are molecular chaperones that are responsible for protein folding and maintenance of cellular homeostasis. Hsp90, an important member of HSP family, has an important role in breast cancer. Glucose-regulated protein 94 (Grp94) is the endoplasmic reticulum paralog of Hsp90 encoded by Hsp90B1 gene. To test if this protein is overexpressed in dogs with mammary tumor, we estimated and compared its serum levels in healthy dogs and that of dogs with mammary tumors. Hsp90B1 mRNA expression was measured in tumorous and healthy mammary tissues (from age- and breed-matched dogs) by real-time PCR...
August 12, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28799678/processing-and-characterization-of-canine-mixed-mammary-tumor-using-transmission-electron-microscopy
#8
Beltrán Audrey, Debut Alexis, Vaca Andrea, Ortiz Julio, Proaño-Pérez Freddy
Canine mammary gland tumors represent the second most frequent type of neoplasm in dogs, being an important problem within veterinary medical field. Canine mixed mammary tumors are the most common; the use of a transmission electron microscope (TEM) can contribute as a tool in its diagnosis by determining the characteristics of cellular components from numerous neoplasms. The aim of this study was to characterize cytologically canine mammary mixed tumor by the use of the TEM. A biopsy collected from an 11 years old bitch Shih-Tzu and analyzed by histopathology was used for ultrastructural analysis...
August 11, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28798533/a-spontaneous-myoepithelial-carcinoma-in-the-mammary-gland-of-an-aged-female-icr-cd-1-mouse
#9
Tsuyoshi Ito, Toshinori Yoshida, Katsumi Soma, Yoshitaka Katoh, Yuko Shimada, Aya Ohnuma-Koyama, Naofumi Takahashi, Yoshimasa Okazaki, Atsushi Shiga, Maki Kuwahara, Takanori Harada
We report a female Crlj:CD1(ICR) mouse with a spontaneous mammary gland tumor composed of biphasic tumor cells, i.e., epithelioid and spindle-shaped myoepithelial cells. Macroscopically, a subcutaneous mass, approximately 3 cm in diameter was found in the lumbodorsal region. Histopathologically, the epithelioid cells proliferated in an alveolar or nest-like growth pattern, occasionally forming glandular-like structures. On the other hand, the spindle-shaped cells proliferated in a sarcomatous pattern. Normal mammary gland was observed in the vicinity of the tumor...
July 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28798374/culture-independent-assessment-of-human-milk-microbial-community-in-lactational-mastitis
#10
Shriram H Patel, Yati H Vaidya, Reena J Patel, Ramesh J Pandit, Chaitanya G Joshi, Anju P Kunjadiya
Breastfeeding undoubtedly provides important benefits to the mother-infant dyad and should be encouraged. Mastitis, one of the common but major cause of premature weaning among lactating women, is an inflammation of connective tissue within the mammary gland. This study reports the influence of mastitis on human milk microbiota by utilizing 16 S rRNA gene sequencing approach. We sampled and sequenced microbiome from 50 human milk samples, including 16 subacute mastitis (SAM), 16 acute mastitis (AM) and 18 healthy-controls...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798322/luciferase-expression-allows-bioluminescence-imaging-but-imposes-limitations-on-the-orthotopic-mouse-4t1-model-of-breast-cancer
#11
V P Baklaushev, A Kilpeläinen, S Petkov, M A Abakumov, N F Grinenko, G M Yusubalieva, A A Latanova, I L Gubskiy, F G Zabozlaev, E S Starodubova, T O Abakumova, M G Isaguliants, V P Chekhonin
Implantation of reporter-labeled tumor cells in an immunocompetent host involves a risk of their immune elimination. We have studied this effect in a mouse model of breast cancer after the orthotopic implantation of mammary gland adenocarcinoma 4T1 cells genetically labelled with luciferase (Luc). Mice were implanted with 4T1 cells and two derivative Luc-expressing clones 4T1luc2 and 4T1luc2D6 exhibiting equal in vitro growth rates. In vivo, the daughter 4T1luc2 clone exhibited nearly the same, and 4T1luc2D6, a lower growth rate than the parental cells...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28795111/data-describing-lack-of-effects-of-17%C3%AE-ethinyl-estradiol-on-mammary-gland-morphology-in-female-mice-exposed-during-pregnancy-and-lactation
#12
Charlotte D LaPlante, Laura N Vandenberg
Ethinyl estradiol (EE) is a synthetic estrogen used in pharmaceutical contraceptives. In many studies evaluating estrogenic endocrine disruptors, EE is used as a positive control for estrogenicity. However, the effects of EE often differ from the effects of other xenoestrogens, suggesting that these other compounds might act via distinct mechanisms. Reported here are data describing the effect of low doses of EE during pregnancy and lactation on the morphology of the lactating mammary gland in CD-1 mice. The data suggest that these low doses have few if any discernable effects on mammary gland morphology...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28794644/the-rank-rankl-opg-system-in-tumorigenesis-and-metastasis-of-cancer-stem-cell-potential-targets-for-anticancer-therapy
#13
REVIEW
Mekonnen Sisay, Getnet Mengistu, Dumessa Edessa
The molecular triad involving receptor activator of nuclear factor kβ (RANK)/RANK ligand (RANKL)/osteoprotegerin cytokine system has been well implicated in several physiological and pathological processes including bone metabolism, mammary gland development, regulation of the immune function, tumorigenesis and metastasis of cancer stem cell, thermoregulation, and vascular calcification. However, this review aimed to summarize several original and up-to-date articles focusing on the role of this signaling system in cancer cell development and metastasis as well as potential therapeutic agents targeting any of the three tumor necrotic factor super family proteins and/or their downstream signaling pathways...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28791998/-fibroepithelial-tumors-of-the-anogenital-mammary-like-glands
#14
A M Konstantinova, K V Shelekhova
Mammary-like glands are a normal anatomical component of the anogenital region. The tumors occurring in them morphologically mimic the similar diseases of the breast. The paper presents a case of vulvar fibroadenoma with leaf-like outgrowths and apocrine metaplasia in a 38-year-old female patient. It describes the clinical and morphological characteristics of fibroadenomas and benign phyllodes tumors in the anogenital region.
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28791287/bidirectional-mast-cell-eosinophil-interactions-in-inflammatory-disorders-and-cancer
#15
REVIEW
Maria Rosaria Galdiero, Gilda Varricchi, Mansour Seaf, Giancarlo Marone, Francesca Levi-Schaffer, Gianni Marone
Human mast cells (MCs) and eosinophils were first described and named by Paul Ehrlich. These cells have distinct myeloid progenitors and differ morphologically, ultrastructurally, immunologically, biochemically, and pharmacologically. However, MCs and eosinophils play a pivotal role in several allergic disorders. In addition, these cells are involved in autoimmune disorders, cardiovascular diseases, and cancer. MCs are distributed throughout all normal human tissues, whereas eosinophils are present only in gastrointestinal tract, secondary lymphoid tissues, and adipose tissue, thymus, mammary gland, and uterus...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28791009/preconditioning-with-lipopolysaccharide-or-lipoteichoic-acid-protects-against-staphylococcus-aureus-mammary-infection-in-mice
#16
Koen Breyne, Jonas Steenbrugge, Kristel Demeyere, Tom Vanden Berghe, Evelyne Meyer
Staphylococcus aureus is one of the most causative agents of mastitis and is associated with chronic udder infections. The persistency of the pathogen is believed to be the result of an insufficient triggering of local inflammatory signaling. In this study, the preclinical mastitis model was used, aiming to evaluate if lipopolysaccharide (LPS) or lipoteichoic acid (LTA) preconditioning could aid the host in more effectively clearing or at least limiting a subsequent S. aureus infection. A prototypic Gram-negative virulence factor, i...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28781197/clinicopathologic-and-molecular-characterization-of-mammary-analogue-secretory-carcinoma-of-salivary-gland-origin
#17
F Baghai, F Yazdani, A Etebarian, A Garajei, A Skalova
BACKGROUND: Mammary analogue secretory carcinoma (MASC) is a newly recognized salivary gland tumor that harbors a characteristic balanced chromosomal translocation t (12; 15) (p13; q25) resulting in an ETV6-NTRK3 fusion gene. METHODS: Retrospective study of 111 salivary gland carcinomas revealed 37 cases with secretory features and growth patterns resembling secretory carcinoma of breast. These 37 cases were originally diagnosed as acinic cell carcinoma, adenocarcinoma not otherwise specified and cystadenocarcinoma...
July 23, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28781034/evidence-based-advances-in-rodent-medicine
#18
REVIEW
Vladimir Jekl, Karel Hauptman, Zdenek Knotek
The number of exotic companion pet rodents seen in veterinary practices is growing very rapidly. According to the American Veterinary Medical Association's surveys, more than 2,093,000 pet rodents were kept in US households in 2007 and in 2012 it was more than 2,349,000 animals. This article summarizes the most important evidence-based knowledge in exotic pet rodents (diagnostics of the hyperadrenocorticism in guinea pigs, pituitary tumors in rats, urolithiasis in guinea pigs, use of itopride as prokinetics, use of deslorelin acetate in rodents, cause of dental disease, and prevention of mammary gland tumors in rats)...
September 2017: Veterinary Clinics of North America. Exotic Animal Practice
https://www.readbyqxmd.com/read/28780092/whole-body-propionate-and-glucose-metabolism-of-multiparous-dairy-cows-receiving-folic-acid-and-vitamin-b12-supplements
#19
M Duplessis, H Lapierre, B Ouattara, N Bissonnette, D Pellerin, J-P Laforest, C L Girard
This study was undertaken to evaluate the effect of supplementation of folic acid and vitamin B12 on glucose and propionate metabolism. Twenty-four multiparous cows were assigned according to a complete block design in a 2 × 2 factorial arrangement to one of the following treatments: (1) saline 0.9% NaCl, (2) 320 mg of folic acid, (3) 10 mg of vitamin B12, or (4) 320 mg of folic acid and 10 mg of vitamin B12. Intramuscular injections were given weekly from 3 wk before the expected calving date until 9 wk postpartum...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28777434/bifunctional-role-of-ephrin-a1-eph-system-in-stimulating-cell-proliferation-and-protecting-cells-from-cell-death-through-the-attenuation-of-er-stress-and-inflammatory-responses-in-bovine-mammary-epithelial-cells
#20
Minkyung Kang, Wooyoung Jeong, Hyocheol Bae, Whasun Lim, Fuller W Bazer, Gwonhwa Song
Structural and functional development of the mammary gland is constant in the mammary gland life cycle. Eph receptors and their ligands, ephrins, control events through cell-to-cell interactions during embryonic development and adult tissue homeostasis; however, little information on participation of ephrin A1, a representative ligand of the Eph receptor, in the development and function of normal mammary glands is known. In this study, we demonstrated functional effects of the ephrin A1-Eph system and mechanisms of its action on bovine mammary epithelial (MAC-T) cells...
August 4, 2017: Journal of Cellular Physiology
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