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https://www.readbyqxmd.com/read/28295576/maternity-leave-length-and-workplace-policies-impact-on-the-sustainment-of-breastfeeding-global-perspectives
#1
Lisa M Steurer
BACKGROUND: Breastfeeding is a global initiative of the World Health Organization and the U.S. domestic health agenda, Healthy People 2020; both recommend exclusive breastfeeding, defined as providing breast milk only via breast or bottle, through the first 6 months of an infant's life. Previous literature has shown the correlation between socioeconomic status and breastfeeding, with higher maternal education and income as predictors of sustained breastfeeding. This same population of women is more likely to be employed outside the home...
March 10, 2017: Public Health Nursing
https://www.readbyqxmd.com/read/28252570/potassium-channel-candidate-genes-predict-the-development-of-secondary-lymphedema-following-breast-cancer-surgery
#2
Betty Smoot, Kord M Kober, Steven M Paul, Jon D Levine, Gary Abrams, Judy Mastick, Kimberly Topp, Yvette P Conley, Christine A Miaskowski
BACKGROUND: Potassium (K) channels play an important role in lymph pump activity, lymph formation, lymph transport, and the functions of lymph nodes. No studies have examined the relationship between K channel candidate genes and the development of secondary lymphedema (LE). OBJECTIVE: The study purpose was to evaluate for differences in genotypic characteristics in women who did (n = 155) or did not (n = 387) develop upper extremity LE following breast cancer treatment based on an analysis of single-nucleotide polymorphisms (SNPs) and haplotypes in 10 K channel genes...
March 2017: Nursing Research
https://www.readbyqxmd.com/read/28235801/the-scaffolding-protein-nherf1-regulates-the-stability-and-activity-of-the-tyrosine-kinase-her2
#3
Jaekwang Jeong, Joshua N Vanhouten, Wonnam Kim, Pamela Dann, Catherine Sullivan, Jungmin Choi, W Bruce Sneddon, Peter A Friedman, John J Wysolmerski
Unlike other ErbB family members, ErbB2/HER2/Neu (HER2) is not internalized but remains on the cell surface when activated. This allows for prolonged signaling and contributes to its transforming ability. Previous studies have shown that the calcium pump, PMCA2, interacts with HER2 within membrane protrusions and is required for the retention of HER2 on the cell surface. In this study, we knocked down NHERF1 expression in breast cancer cells lines and examined whether the scaffolding protein, NHERF1, interacts with PMCA2 and HER2...
February 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28228712/nordic-walking-and-the-isa-method-for-breast-cancer-survivors-effects-on-upper-limb-circumferences-and-total-body-extracellular-water-a-pilot-study
#4
Andrea Di Blasio, Teresa Morano, Giorgio Napolitano, Ines Bucci, Serena Di Santo, Sabina Gallina, Lucia Cugusi, Francesco Di Donato, Alberto D'Arielli, Ettore Cianchetti
BACKGROUND: The negative side effects of breast cancer treatments can include upper limb lymphoedema. The growing literature indicates that Nordic walking is an effective discipline against several disease symptoms. The aim of this study was to determine whether introduction to Nordic walking alone is effective against total body extracellular water and upper limb circumferences in breast cancer survivors compared to its combination with a series of specifically created exercises (i.e...
December 2016: Breast Care
https://www.readbyqxmd.com/read/28214549/atp-dependent-activity-and-mitochondrial-localization-of-drug-efflux-pumps-in-doxorubicin-resistant-breast-cancer-cells
#5
Julie Dartier, Elsa Lemaitre, Igor Chourpa, Caroline Goupille, Stéphane Servais, Stéphan Chevalier, Karine Mahéo, Jean-François Dumas
BACKGROUND: We hypothesized that, among the mechanisms of drug-resistance acquired by doxorubicin (DOX)-resistant breast cancer cells to maintain cell survival, ATP-dependent drug efflux pumps could be expressed in their mitochondrial membranes and this might limit the accumulation of DOX in this subcellular compartment in relation to mitochondrial ATP production. METHODS/RESULTS: Mitochondrial DOX accumulation: the presence and the activity of mitochondrial efflux pumps and their relationship with mitochondrial ATP synthesis were analyzed in DOX-resistant (MCF-7dox(R)) and -sensitive (MCF-7(S)) breast cancer cells...
February 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28203474/unexpected-radiation-induced-aortic-wall-thickening-requiring-composite-graft-technique-during-off-pump-coronary-artery-bypass-grafting
#6
Paola Redaelli, Amando Gamba, Antonello Stefano Martino, Michele Triggiani
Mediastinal radiation is commonly used to treat Hodgkin's and non-Hodgkin's lymphoma, lung and breast cancer. Cardiac complications after radiation therapy are well described, although rare. A large spectrum of injuries can occur, causing long term morbidity among survivors. We describe a case of post-actinic ascending aortic wall thickening that prevented saphenous vein proximal anastomosis and was successfully managed with aortic no-touch off-pump coronary artery bypass grafting (OPCAB), 25 years after radiation therapy for Hodgkin's lymphoma...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28173641/effects-of-adamantyl-derivatives-on-pharmacokinetic-behavior-of-paclitaxel-in-rats
#7
Kyung Mi Kim, Kyeong Lee, Kyusic Jang, Yae Seul Moon, Hwa Jeong Lee, Sandy Jeong Rhie
Paclitaxel (PTX) is one of the most frequently used anticancer agent for treating refractory ovarian cancer, metastatic breast cancer and non-small cell lung cancer. However, its oral administration is impeded by very low bioavailability (<5%) due to the P-glycopprotein (P-gp) efflux pump effect. This study investigated in vitro and in vivo P-gp inhibitory effects of adamantyl derivatives AC-603 and AC-786 in rats. Two adamantyl derivatives tested in this study increased the cytotoxicity of daunomycin (DNM) in P-gp overexpressed cell line by inhibiting P-gp efflux function...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28156621/comparison-of-two-indwelling-pleural-catheter-types-for-malignant-pleural-effusions
#8
Sushilkumar Satish Gupta, Abhinav Binod Chandra
205 Background: Indwelling pleural catheter (IPC) placement is an alternative to chemical pleurodesis for malignant pleural effusion (MPE), a complication of advanced cancer. In 1997 an IPC was approved which uses vacuum bottles (VB) for drainage (PleurX, Becton, Dickinson and Company, Franklin Lakes, NJ), and later another IPC system, which employs a manually operated vacuum pump (VP) for drainage (Aspira, Bard Access Systems, Salt Lake City, UT). Most studies comparing IPC versus chemical pleurodesis used the VB IPC...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152547/neratinib-resistance-and-cross-resistance-to-other-her2-targeted-drugs-due-to-increased-activity-of-metabolism-enzyme-cytochrome-p4503a4
#9
Susan Breslin, Michelle C Lowry, Lorraine O'Driscoll
BACKGROUND: Neratinib is in Phase 3 clinical trials but, unfortunately, the development of resistance is inevitable. Here, we investigated the effects of acquired neratinib resistance on cellular phenotype and the potential mechanism of this resistance. METHODS: Neratinib-resistant variants of HER2-positive breast cancer cells were developed and their cross-resistance investigated using cytotoxicity assays. Similarly, sensitivity of trastuzumab-resistant and lapatinib-resistant cells to neratinib was assessed...
February 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28150875/atp2a3-gene-as-an-important-player-for-resveratrol-anticancer-activity-in-breast-cancer-cells
#10
Eduardo Izquierdo-Torres, Gabriela Rodríguez, Iván Meneses-Morales, Angel Zarain-Herzberg
The Ca(2+) -ATPases from the Sarco/endoplasmic reticulum (SERCA) are fundamental for maintaining intracellular [Ca(2+) ] homeostasis by pumping Ca(2+) into the endoplasmic reticulum (ER) of eukaryotic cells. SERCA enzymes are encoded by three different genes (ATP2A1-3), whose expression occurs in a tissue and development stage-specific manner. It has been reported alterations in the expression of SERCA2 and SERCA3 pumps in different types of cancer: oral, lung, colon, stomach, central nervous system, thyroid, breast, and prostate...
February 2, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28145545/pipetting-driven-microfluidic-immunohistochemistry-to-facilitate-enhanced-immunoreaction-and-effective-use-of-antibodies
#11
Segi Kim, Seyong Kwon, Chang Hyun Cho, Je-Kyun Park
Immunohistochemistry (IHC), which has been used to detect antigens in cells of a tissue section using an immunoreaction between an antibody and an antigen, is a practical tool for identifying the type and stage of diseases in cancer diagnosis and scientific research. However, conventional IHC requires long, laborious process times and high costs. Although microfluidic IHC platforms have been developed to overcome these limitations, the application of microfluidic IHC in real-world environments is still limited due to the additional equipment needed to operate the microfluidic systems...
February 1, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28135486/-i-had-one-job-and-that-was-to-make-milk
#12
Katherine Bower, Tara Burnette, Daniel Lewis, Courtney Wright, Katie Kavanagh
BACKGROUND: For very-low-birth-weight (VLBW) infants, breastfeeding may no longer be an immediate option. Mothers often turn to mechanically expressing their milk with a breast pump to provide their infants human milk. Research aim: This study aimed to describe mothers' experiences expressing milk for their VLBW infants in a level 3 neonatal intensive care unit. METHODS: Qualitative, phenomenological methods were used to better understand the milk expression experiences of 17 mothers of VLBW infants...
February 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28110489/video-assisted-laser-resection-of-lung-metastases-feasibility-of-a-new-surgical-technique
#13
Christian Meyer, Detlef Bartsch, Nikolas Mirow, Andreas Kirschbaum
Background Our pilot study describes our initial experience to do a laser resection of lung metastases under video-assisted thoracoscopic control via a minithoracotomy. With this approach, if needed, mediastinal lymphadenectomy is also possible. Methods In this study, 15 patients (11 men and 4 women, mean age: 60 years) with resectable lung metastases of different solid primary tumors (colorectal cancer in seven patients, melanoma in three patients, renal cell carcinoma in two patients, and one each with oropharyngeal cancer, breast cancer, and seminoma) were included...
January 22, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28101405/deep-tissue-photoacoustic-computed-tomography-with-a-fast-and-compact-laser-system
#14
Depeng Wang, Yuehang Wang, Weiran Wang, Dandan Luo, Upendra Chitgupi, Jumin Geng, Yang Zhou, Lidai Wang, Jonathan F Lovell, Jun Xia
Photoacoustic computed tomography (PACT) holds great promise for biomedical imaging, but wide-spread implementation is impeded by the bulkiness of flash-lamp-pumped laser systems, which typically weigh between 50 - 200 kg, require continuous water cooling, and operate at a low repetition rate. Here, we demonstrate that compact lasers based on emerging diode technologies are well-suited for preclinical and clinical PACT. The diode-pumped laser used in this study had a miniature footprint (13 × 14 × 7 cm(3)), weighed only 1...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28098816/estrogen-enhances-the-expression-of-the-multidrug-transporter-gene-abcg2-increasing-drug-resistance-of-breast-cancer-cells-through-estrogen-receptors
#15
Fung-Wei Chang, Hueng-Chuen Fan, Jui-Ming Liu, Tai-Ping Fan, Jin Jing, Chia-Ling Yang, Ren-Jun Hsu
BACKGROUND: Multidrug resistance is a major obstacle in the successful therapy of breast cancer. Studies have proved that this kind of drug resistance happens in both human cancers and cultured cancer cell lines. Understanding the molecular mechanisms of drug resistance is important for the reasonable design and use of new treatment strategies to effectively confront cancers. RESULTS: In our study, ATP-binding cassette sub-family G member 2 (ABCG2), adenosine triphosphate (ATP) synthase and cytochrome c oxidase subunit VIc (COX6C) were over-expressed more in the MCF-7/MX cell line than in the normal MCF7 cell line...
January 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28094880/milk-ejection-patterns-remain-consistent-during-the-first-and-second-lactations
#16
Hazel Gardner, Jacqueline C Kent, Danielle K Prime, Ching-Tat Lai, Peter E Hartmann, Donna T Geddes
OBJECTIVE: Milk ejection is a critical physiological process for successful lactation in humans and without it little milk can be removed. Individual milk ejection patterns have been shown to remain consistent between breasts at different lactation stages and using different vacuum patterns with an electric breast pump. Little is known about the milk ejection characteristics during the second lactation period in the same mother. The objective of this study was to examine milk ejection characteristics in the same woman over two lactations...
January 17, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28078789/-breastfeeding-without-baby-a-longitudinal-qualitative-investigation-of-how-mothers-perceive-feel-about-and-practice-human-milk-expression
#17
Julia P Felice, Sheela R Geraghty, Caroline W Quaglieri, Rei Yamada, Adriana J Wong, Kathleen M Rasmussen
Most American mothers who produce human milk (HM) now pump in place of some or all feeding at the breast, and most American infants are now fed pumped HM. We aimed to investigate mothers' perceptions of, attitudes toward, and practices for pumping and providing pumped HM. Results related to pumping are reported here. We conducted in-depth, semi-structured interviews among a diverse sample of 20 mothers who pumped, following each from pregnancy through infant HM-feeding cessation up to 1 year postpartum. Data were analyzed using thematic analysis with Atlas...
January 12, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28056181/an-adoptive-mother-who-became-a-human-milk-donor
#18
Beatriz Flores-Antón, Nadia Raquel García-Lara, Carmen Rosa Pallás-Alonso
Inducing lactation in the absence of pregnancy (nonpuerperal lactation) is not always successful and, in many cases, only partial breastfeeding is achieved. Different protocols have been described, but scientific evidence and research are lacking in this area. The authors describe the case of a woman with a history of a miscarriage, for whom the lactation induction process was so effective that she became a milk donor even before she received her adopted child. She had not previously used hormone treatment...
January 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28036031/drug-transporter-expression-and-activity-in-human-hepatoma-huh-7-cells
#19
Elodie Jouan, Marc Le Vée, Claire Denizot, Yannick Parmentier, Olivier Fardel
Human hepatoma cells may represent a valuable alternative to the use of human hepatocytes for studying hepatic drug transporters, which is now a regulatory issue during drug development. In the present work, we have characterized hepatic drug transporter expression, activity and regulation in human hepatoma HuH-7 cells, in order to determine the potential relevance of these cells for drug transport assays. HuH-7 cells displayed notable multidrug resistance-associated protein (MRP) activity, presumed to reflect expression of various hepatic MRPs, including MRP2...
December 28, 2016: Pharmaceutics
https://www.readbyqxmd.com/read/28006904/resin-glycosides-from-ipomoea-alba-seeds-as-potential-chemosensitizers-in-breast-carcinoma-cells
#20
Sara Cruz-Morales, Jhon Castañeda-Gómez, Daniel Rosas-Ramírez, Mabel Fragoso-Serrano, Gabriela Figueroa-González, Argelia Lorence, Rogelio Pereda-Miranda
Multidrug resistance is the expression of one or more efflux pumps, such as P-glycoprotein, and is a major obstacle in cancer therapy. The use of new potent and noncytotoxic efflux pump modulators, coadministered with antineoplastic agents, is an alternative approach for increasing the success rate of therapy regimes with different drug combinations. This report describes the isolation and structure elucidation of six new resin glycosides from moon vine seeds (Ipomoea alba) as potential mammalian multidrug-resistance-modifying agents...
December 23, 2016: Journal of Natural Products
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