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calcium lactation

Dongdong Chai, Hong Jiang, Qifang Li
OBJECTIVE: Previously, we found that the inhaled anesthetic isoflurane up-regulated the transcriptional factor hypoxia inducible factor (HIF)-1α protein levels during induction of neurodegeneration in the brain of neonatal rats. Here, we investigated the role of HIF-1α and the underlying signaling pathway in the neurodegenration induced by isoflurane in rodent developing brain. METHODS: Primary hippocampal neurons were exposed to isoflurane (0.4mM) for 12h. Neuron injury was analyzed by 3-(4,5-dimethyithiazol-2-yl)-2,5-diphenyl-tetra-zolium bromide (MTT) test and quantification of lactate dehydrogenaserelease...
October 18, 2016: Brain Research
Franca Marangoni, Irene Cetin, Elvira Verduci, Giuseppe Canzone, Marcello Giovannini, Paolo Scollo, Giovanni Corsello, Andrea Poli
The importance of lifestyle and dietary habits during pregnancy and breastfeeding, for health of mothers and their offspring, is widely supported by the most recent scientific literature. The consumption of a varied and balanced diet from the preconceptional period is essential to ensure both maternal well-being and pregnancy outcomes. However, the risk of inadequate intakes of specific micronutrients in pregnancy and lactation is high even in the most industrialized countries. This particularly applies to docosahexaenoic acid (DHA), iron, iodine, calcium, folic acid, and vitamin D, also in the Italian population...
October 14, 2016: Nutrients
Feng Cai, Feng Wang, Xin Hong, Xin-Hui Xie, Rui Shi, Zhi-Yang Xie, Xiao-Tao Wu
OBJECTIVES: Activation of acid-sensing ion channel 1a (ASIC1a) is responsible for tissue injury caused by acidosis in nervous systems. But its physiological and pathological roles in nucleus pulposus cells (NPCs) are unclear. The aim of this study is to investigate whether ASIC1a regulates the survival of NPCs in the acidic environment of degenerated discs. MATERIALS AND METHODS: NPCs were isolated and cultured followed by immunofluorescent staining and Western-blot analysis for ASIC1a...
August 2016: Iranian Journal of Basic Medical Sciences
Wonnam Kim, John J Wysolmerski
The calcium-sensing receptor (CaSR) is expressed in normal breast epithelial cells and in breast cancer cells. During lactation, activation of the CaSR in mammary epithelial cells increases calcium transport into milk and inhibits parathyroid hormone-related protein (PTHrP) secretion into milk and into the circulation. The ability to sense changes in extracellular calcium allows the lactating breast to actively participate in the regulation of systemic calcium and bone metabolism, and to coordinate calcium usage with calcium availability during milk production...
2016: Frontiers in Physiology
Toshio Mori, Hiroko Kako, Tomoki Sumiya, Hirokazu Kawagishi, Hirofumi Hirai
A lactic acid (LA)-producing strain of the hyper-lignin-degrading fungus Phanerochaete sordida YK-624 with the lactate dehydrogenase-encoding gene from Bifidobacterium longum (Blldh) was constructed. When the endogenous pyruvate decarboxylase gene-knocked down and Blldh-expressing transformant was cultured with beech wood meal, the transformant was able to successively delignify and ferment the substrate. Supplementation of calcium carbonate into the culture medium, significantly increased the level of LA accumulation...
October 13, 2016: Journal of Biotechnology
Meherzia Mokni, Mohamed Amri, Ferid Limam, Ezzedine Aouani
In the present study, we investigated the effect of grape seed and skin supplement (GSSS), on lactating dairy ewes' production. Ten dairy pregnant ewes from northern Tunisia were allocated to two groups: control diet (C) and supplemented with 20 % (w/w) GSSS. The experiment lasted for 8 weeks and took place after 2 months of lambing. During the experiment, daily milk yield and milk composition were determined. Supplementation of the diet with GSSS increased milk production (P < 0.001), calcium (P < 0...
October 15, 2016: Tropical Animal Health and Production
Jian Zhao, Yun Zhao, Colin W Binns, Andy H Lee
The calcium supplementation status during the postpartum period among Chinese lactating women is still unclear. The objective of this study is to utilize data from two population-based prospective cohort studies to examine the calcium supplementation status and to identify whether breastfeeding is associated with increased calcium supplementation among Chinese mothers after child birth. Information from 1540 mothers on breastfeeding and calcium supplementation measured at discharge, 1, 3, and 6 months postpartum were extracted to evaluate the association between breastfeeding and calcium supplementation postpartum...
October 9, 2016: Nutrients
Katherine Hughes, Maximilian Blanck, Sara Pensa, Christine J Watson
Mammary gland regression at the cessation of lactation (involution) is an exquisitely orchestrated process of cell death and tissue remodelling in which Stat3 signalling has an essential role. The involution microenvironment of the mammary gland is considered to be pro-tumourigenic and a proportion of cases of pregnancy-associated breast cancer are suggested to originate in tandem with involution. However, the apparent paradox that STAT3 is required for cell death in normal mammary gland, but is associated with breast cancer cell survival, has not been resolved...
October 6, 2016: Cell Death & Disease
Silvia Tappi, Urszula Tylewicz, Santina Romani, Lorenzo Siroli, Francesca Patrignani, Marco Dalla Rosa, Pietro Rocculi
Vacuum impregnation (VI) is a processing operation that permits the impregnation of fruit and vegetable porous tissues with a fast and more homogeneous penetration of active compounds compared to the classical diffusion processes. The objective of this research was to investigate the impact on VI treatment with the addition of calcium lactate on qualitative parameters of minimally processed melon during storage. For this aim, this work was divided in 2 parts. Initially, the optimization of process parameters was carried out in order to choose the optimal VI conditions for improving texture characteristics of minimally processed melon that were then used to impregnate melons for a shelf-life study in real storage conditions...
October 5, 2016: Journal of Food Science
Xin-Yuan Sun, Jian-Ming Ouyang, Poonam Bhadja, Qin Gui, Hua Peng, Jie Liu
This study aimed to investigate the protective effects of degraded soybean polysaccharides (DSP) on oxidatively damaged African green monkey kidney epithelial (Vero) cells. Low DSP concentration (10 μg/mL) elicited an evident protective effect on H2O2-induced cell injury (0.3 mmol/L). The cell viabilities of the H2O2-treated group and the DSP-protected group were 57.3% and 93.1%, respectively. The cell viability decreased to 88.3% when the dosage was increased to 100 μg/mL. DSP protected Vero cells from H2O2-mediated oxidative damage by enhancing cellular superoxide dismutase activity and total antioxidant capacity and by decreasing malonaldehyde content and lactate dehydrogenase release...
October 5, 2016: Journal of Agricultural and Food Chemistry
Takashige Abe, Junji Ishizaki, Hiroshi Kikuchi, Keita Minami, Ryuji Matsumoto, Toru Harabayashi, Ataru Sazawa, Tango Mochizuki, Satoshi Chiba, Tomoshige Akino, Masashi Murakumo, Naoto Miyajima, Kunihiko Tsuchiya, Satoru Maruyama, Sachiyo Murai, Nobuo Shinohara
AIM: To clarify prognostic factors of metatstatic urothelial carcinoma treated by systemic chemotherapy in real-world clinical practice in the Japanese population. MATERIALS AND METHODS: A total of 228 patients with metastatic urothelial carcinoma undergoing systemic chemotherapy between 2000 and 2013 were included in the present multi-institutional study. The gemcitabine plus cisplatin regimen was administered as first-line chemotherapy to 131 patients, whereas methotrexate, vinblastine, doxorubicin, and cisplatin or its modified regimen was given to 71 patients...
September 29, 2016: Urologic Oncology
Alexandra Laube, Helene Pendl, Marcus Clauss, Barblin Altherr, Jean-Michel Hatt
Blood samples of 86 captive panther chameleons (Furcifer pardalis) were collected in January and August from the ventral coccygeal vein in order to establish reference intervals of clinical healthy individuals under similar husbandry conditions for plasma biochemistry and hematology for this species. Significant differences were found in phosphorus, glucose, total protein, albumin, and white blood cell count between males and females in both seasons. Calcium, alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase varied in only one season between genders...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Dara L Gottlieb, Jennifer Prittie, Yekaterina Buriko, Kenneth E Lamb
OBJECTIVE: To evaluate the presence of acute traumatic coagulopathy (ATC) in dogs and cats following blunt trauma and to relate coagulation variables with injury severity and admission variables. DESIGN: Prospective, single center, observational study from 2013 to 2014. SETTING: Urban private referral hospital. ANIMALS: Eighteen and 19 client-owned dogs and cats, respectively, sustaining blunt trauma within 8 hours of presentation without prior resuscitation; 17 healthy staff and client-owned control cats METHODS: Blood samples were collected upon presentation for measurement of blood gas, lactate, blood glucose, ionized calcium, PCV, total plasma protein, prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, platelet count, and thromboelastography...
September 30, 2016: Journal of Veterinary Emergency and Critical Care
Recep Bayram, Muhsine Zeynep Yavuz, Bedri Selim Benek, Ayşenur Aydoğar Bozkurt, Ali Ucbek, Zeynep Güneş Özünal, Akçahan Gepdiremen
AIM: The aims of this study were to investigate the effects of calcium at the same concentration as that found in human milk on the viability, proliferation, and adhesion of MCF-7 human breast ductal carcinoma cells by exposing them to calcium at the same frequency as in breastfeeding. MATERIALS AND METHODS: High-concentration calcium was applied for 30 minutes every 4 hours for 24, 48, and 72 hours. Cell proliferation and viability were measured using a hemocytometer and the MTT cell viability assay...
September 27, 2016: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
Archana Shetty, Aparna Narasimha, V J Jayalakshmi
The physiological changes of the breast during pregnancy and lactation make the clinical, radiological and pathological evaluation of a breast mass challenging. Galactoceles are benign lesions containing milk, and generally occur post partum. Fine needle aspiration cytology is a simple, quick and effective technique for the diagnosis of the same during this period, and in case of galactocele the same can be both diagnostic and therapeutic.Although the cytological features of galactocele are straight forward, a few rare interesting variations can be encountered posing a diagnostic challenge to the reporting cytopathologist...
July 28, 2016: Breast Disease
Loredana Cavalli, Andrea Guazzini, Luisella Cianferotti, Simone Parri, Tiziana Cavalli, Alessia Metozzi, Francesca Giusti, Caterina Fossi, Dennis M Black, Maria Luisa Brandi
BACKGROUND: BoneTour is a campaign conducted throughout the Italian territory for the assessment of Italian people bone status and for the prevention of osteoporosis. METHODS: A total of 7305 sequential subjects of both sexes were screened, collecting clinical data through the FRAX™ questionnaire, and measuring heel bone stiffness by Quantitative Ultrasonography (QUS). The 10-year risk for hip and major osteoporotic fractures was calculated taking into account personal or family history of fragility fracture, smoking, alcohol abuse, rheumatoid arthritis, prolonged steroids assumption...
2016: BMC Musculoskeletal Disorders
Mahavir Singh, Poonam Yadav, Anshu Sharma, V K Garg, Dinesh Mittal
The milk samples from buffaloes of Murrah breed at mid lactation stage, reared at an organised dairy farm, were screened for subclinical mastitis based on bacteriological examination and somatic cell count following International Dairy Federation criteria. Milk samples from subclinical mastitis infected and healthy buffaloes were analysed to evaluate physicochemical alterations in terms of protein, fat, pH, electrical conductivity, chloride, minerals (sodium, potassium and calcium) and trace elements (iron, zinc, copper and selenium)...
September 9, 2016: Biological Trace Element Research
Johanna Helmersson-Karlqvist, Peter Ridefelt, Lars Lind, Anders Larsson
OBJECTIVES: Reference values are usually based on blood samples from healthy individuals in the age range 20-50 years. Most patients seeking health care are older than this reference population. Many reference intervals are age dependent and there is thus a need to have appropriate reference intervals also for elderly individuals. METHODS: We analyzed a group of frequently used laboratory tests in an 80-year-old population (n=531, 266 females and 265 males). The 2...
October 2016: Maturitas
R M do Prado, M F Palin, I N do Prado, G T Dos Santos, C Benchaar, H V Petit
The response of transition dairy cows to dietary supplementation with fat sources of various fatty acid profiles could affect hepatic fat metabolism differently. Twenty-eight Holstein cows were blocked for similar calving date 4 wk before expected parturition to compare the effects of feeding sources of n-3 and n-6 fatty acids on milk production and composition, plasma metabolites, and liver parameters. Cows within each block were assigned to 1 of 3 isonitrogenous and isoenergetic diets: control with a source of calcium salts of palm oil (MEG; 1...
September 7, 2016: Journal of Dairy Science
S Paudyal, F Maunsell, J Richeson, C Risco, A Donovan, P Pinedo
Our objective was to evaluate the effect of season of calving, associated with variable levels of heat stress, on the dynamics of rumination during the prepartum period and early lactation of cows that were healthy or affected by peripartal health disorders. Three weeks before the estimated due date, 210 multiparous Holstein cows at the University of Florida Dairy Unit were affixed with a neck collar containing rumination loggers, providing rumination time (RT) in 2-h periods. One blood sample was collected in a subpopulation of cows (n = 76) at 12 to 48 h postcalving to assess metabolic status by determining serum calcium, nonesterified fatty acid, and β-hydroxybutyrate concentrations...
September 7, 2016: Journal of Dairy Science
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