نتایج جستجو برای: p4

تعداد نتایج: 5771  

Journal: :American journal of human biology : the official journal of the Human Biology Council 2013
Lee T Gettler Thomas W McDade Sonny S Agustin Christopher W Kuzawa

OBJECTIVES We assessed the responsiveness of salivary progesterone (P4) and estradiol (E2) to father-child interaction, including testing for differences in short-term hormonal change based on paternal characteristics. We also predicted that P4 exposure during the study period would relate positively to post-interaction paternal mood. METHODS We conducted an in-home intervention study in whic...

Journal: :International journal of clinical and experimental medicine 2013
Doron Amit Sagi Tamir Abraham Hochberg

BACKGROUND The human IGF2-P4 and IGF2-P3 promoters are highly active in a variety of human cancers, while existing at a nearly undetectable level in the surrounding normal tissue. Thus, a double promoter DTA-expressing vector was created, carrying on a single construct two separate genes expressing the diphtheria toxin a-fragment (DTA), from two different regulatory sequences, selected from the...

Journal: :Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan 2004
Tatsushi Imahori

A novel type of deprotonative functionalization of aromatics was accomplished with a phosphazene base (t-Bu-P4 base). For various nitrogen heteroaromatics and benzene derivatives, deprotonative 1,2-additions proceeded with the t-Bu-P4 base and ZnI(2) as an additive in the presence of carbonyl compounds. The t-Bu-P4 base has both extremely strong Brønsted basicity and less nucleophilicity due to...

Journal: :Reproduction, fertility, and development 2014
Michael P Mullen Fuller W Bazer Guoyao Wu Mervyn H Parr Alexander C O Evans Mark A Crowe Michael G Diskin

The uterine histotroph provides essential nutrition to the developing conceptus during the preimplantation period of pregnancy. The objective of the present study was to examine the effects of cycle stage and progesterone (P4) concentrations in the blood on the recoverable quantities of amino acids and glucose in the histotroph during the preimplantaion period of conceptus development. Followin...

Journal: :Neuroscience 2015
G S Wable Y-W Chen S Rashid C Aoki

Adolescent females are particularly vulnerable to mental illnesses with co-morbidity of anxiety, such as anorexia nervosa (AN). We used an animal model of AN, called activity-based anorexia (ABA), to investigate the neurobiological basis of vulnerability to repeated, food restriction (FR) stress-evoked anxiety. Twenty-one of 23 adolescent female mice responded to the 1st FR with increased wheel...

2013
Carla A. Piccinato Guilherme J. M. Rosa Alhaji U. N’Jai Colin R. Jefcoate Milo C. Wiltbank

Female sex steroid hormones, estradiol-17β (E2-17β) and progesterone (P4) regulate reproductive function and gene expression in a broad range of tissues. Given the central role of the liver in regulating homeostasis including steroid hormone metabolism, we sought to understand how E2-17β and P4 interact to affect global gene expression in liver. Ovariectomized cows (n = 8) were randomly assigne...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2010
Ling Cheng Piero Biancani Jose Behar

The slow transit time of the colon in females with constipation is due to impairment of agonist-induced contraction. The impairment is associated with downregulation of G proteins that mediate contraction and upregulation of Gs proteins that mediate relaxation. These changes are caused by overexpression of progesterone (P4) receptors in the colon, rendering its muscle cells sensitive to physiol...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2001
S Shah L Nathan R Singh Y S Fu G Chaudhuri

In women, during pregnancy, there is decreased motility of the gastrointestinal tract leading to a delay in gastric emptying and an increase in colonic transit time. Whether the rise in estradiol (E2) or progesterone (P4) is responsible for this effect is controversial. As the nitrergic component of the nonadrenergic, noncholinergic (NANC) nerves is responsible for modulating gastrointestinal m...

2016
Jens P. Andersen Anna L. Vestergaard Stine A. Mikkelsen Louise S. Mogensen Madhavan Chalat Robert S. Molday

P4-ATPases comprise a family of P-type ATPases that actively transport or flip phospholipids across cell membranes. This generates and maintains membrane lipid asymmetry, a property essential for a wide variety of cellular processes such as vesicle budding and trafficking, cell signaling, blood coagulation, apoptosis, bile and cholesterol homeostasis, and neuronal cell survival. Some P4-ATPases...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1389

جداسازی آماستیگوتها از زخم موشهای balb/c .کشت و تکثیر آماستیگوتها به طور in vitro.جداسازی غشاء آماستیگوتها و تجزیه آن به فراکسیونهای مختلف .انجامfusion و تولید آنتی بادی منوکلونال بر علیه آنتی ژن p4 غشایی آماستیگوت.جداسازی پروتئین p4 از غشاء آماستیگوت با sds-page و روش negative staining .خالص سازی پروتئین بدست آمده با elution . تشخیص پروتئین استخراجی به وسیله western blotting -ارزیابی پروتئین ب...

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