نتایج جستجو برای: secretory product
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Leptin, a key regulator of fat homeostasis, is the product of the obese gene [1-3], and is secreted from adipocytes and binds to receptor sites in the choroid plexus [4-5]. Several studies have implicated serum insulin levels in the upregulation of leptin gene expression [6-8]. It is currently not known whether leptin levels are also subject to regulation at the level of secretion. Leptin is no...
Ca2+, an obligatory mediator of the secretory process, acts in concert with other second messengers that further amplify or inhibit the secretory response. In this overview, we will consider the relative roles of diacylglycerol (DAG), arachidonic acid, and cyclic AMP (cAMP) in modulating Ca2(+)-dependent secretion in nonexcitable cells. DAG, a product of phospholipase C (PLC)-catalyzed breakdow...
The p24alpha, -beta, -gamma, and -delta proteins are major multimeric constituents of cycling endoplasmic reticulum-Golgi transport vesicles and are thought to be involved in protein transport through the early secretory pathway. In this study, we targeted transgene overexpression of p24delta2 specifically to the Xenopus intermediate pituitary melanotrope cell that is involved in background ada...
The Reuber hepatoma H-35 and Morris hepatoma 5123 have been studied by electron microscopy and by cytochemical staining methods for a number of phosphatases. These studies emphasize the resemblances of the two tumors to rat liver, but they also indicate distinctive features in each of the three tissues. Secretory product accumulates within the cisternae of the Golgi apparatus that dilate to for...
background: secretory proteins of ige receptor activated mast cells and basophils play a pivotal role in the generation of immediate and long term immune responses in allergy and type i hypersensitivity. objective: the present study aims to generate a 2-d map and profile of proteins secreted from a high secretory variant of the rat basophilic leukemia cell line, rbl-2h3.1, which in view of the ...
Background and Objective: Leishmaniasis is a public health problem caused by different types of Leishmania. The induction of apoptosis in infected macrophages is one of the main mechanisms for the escape of the parasite from the immune system. Preventing apoptosis and enhancing the ability to kill macrophages can be effective in treating or controlling leishmaniasis. In this study, the effect ...
Cryofixation and conventional chemical fixation methods were employed to examine the ultrastructure of developing peltate glandular trichomes of peppermint (Mentha x piperita). Our results are discussed in relation to monoterpene production and the mechanism of essential oil secretion. Peltate glands arise as epidermal protuberances (initials) that divide asymmetrically to produce a vacuolate b...
INTRODUCTION Approximately 80 to 85% of cases of hyperadrenocorticism in both dogs and cats are due to pituitary dependent hyperadrenocorticism (PDH), with the remainder due to an adrenocortical tumor (AT). Cortisol is the most common secretory product of the adrenal gland in hyperadrenocorticism, but excessive production of other steroid hormones (sex hormones, mineralocorticoids) has been rep...
the outcome of this research is a practical framework for “idea generation phase of new product development process based on customer knowledge”. in continue, the mentioned framework implemented in a part of iran n.a.b market and result in segmenting and profiling this market. also, the critical new product attributes and bases of communication message and promotion campaigns extracted. we have...
The present study was undertaken to localize adenylate cyclase activity in salivary glands by cytochemical means. For the study, serous parotid glands and mixed sublingual glands of the rat were used. Pieces of the fixed glands were incubated with adenosine triphosphate (ATP) or adenylyl-imidodiphosphate (AMP-PNP) as substrate: inorganic pyrophosphate or PNP liberated upon the action of adenyla...
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