Abstract:
:Flow of submandibular saliva and the constituents secreted during chorda-lingual nerve stimulation at 40 Hz (3 x 10 min) were studied after alpha- and beta-adrenergic blockade, and in the absence (control) or presence of cholinergic blockade in anaesthetized rats. Peroxidase and true tissue kallikrein (rK1) were assessed to gain insight into the effects of the non-adrenergic, non-cholinergic (NANC) transmitters on protein secretion by acini and granular tubules, respectively. From control glands there was an overall mean flow of 181 +/- 15 microliters g-1 min-1, with no significant differences between the three periods. Secretion from atropinized glands was approximately 20% of that from control glands in the first 10 min, decreasing progressively to approximately 6% in the final period. Protein outputs from control glands showed no significant differences for the three periods (0.23 +/- 0.05 mg g-1 min-1). Protein outputs from atropinized glands were similar to controls in the first 10 min and then decreased significantly. Peroxidase output from control glands increased progressively (from 31 +/- 7 to 243 +/- 68 pmol dichlorofluorescein (DCF) g-1 min-1) but in saliva from atropinized glands the overall mean output was only 4.5 +/- 0.8 pmol DCF min-1 ml-1, with a progressive decrease between samples. Outputs of rK1 from control glands were similar for all samples (20.6 +/- 4.0 nmol AFC g-1 min-1), but there was a significantly smaller and decreasing output of rK1 from atropinized glands. In conclusion, NANC transmitters released from parasympathetic nerves during stimulation at high frequency appear to have little influence on the secretion of protein from rat submandibular acini and granular tubule cells when acting in isolation. This contrasts with their effects on amylase secretion from rat parotid glands under similar circumstances.
journal_name
Exp Physioljournal_title
Experimental physiologyauthors
Garrett JR,Anderson LC,Zhang XS,Proctor GBdoi
10.1113/expphysiol.1996.sp003940subject
Has Abstractpub_date
1996-05-01 00:00:00pages
361-6issue
3eissn
0958-0670issn
1469-445Xjournal_volume
81pub_type
杂志文章abstract:NEW FINDINGS:What is the topic of this review? The sympathetic control of renal sodium tubular reabsorption is dependent on activation of the intrarenal renin-angiotensin system and activation of the angiotensin II type 1 (AT1 ) receptor by angiotensin II. What advances does it highlight? Despite the fact that the inte...
journal_title:Experimental physiology
pub_type: 杂志文章,评审
doi:10.1113/EP085075
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abstract::The precise role of vasopressin in the pathophysiology of cardiovascular disease is controversial, but this peptide hormone is important for several reasons. Firstly, circulating concentrations of vasopressin are elevated in heart failure and some forms of hypertension. Secondly, there is evidence that vasopressin is ...
journal_title:Experimental physiology
pub_type: 杂志文章,评审
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abstract::Contraction-mediated injury is a major contributing factor to the pathophysiology of muscular dystrophy and therefore therapies that can attenuate this type of injury have clinical relevance. Systemic administration of insulin-like growth factor-I (IGF-I) has been shown to improve muscle function in dystrophic mdx mic...
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doi:10.1113/EP086655
更新日期:2018-04-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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abstract::Preparations of isolated rat jejunal enterocyte and brush-border and basolateral membrane vesicles have been used to study the effects of a 15 min exposure of upper and mid-villus enterocytes to pancreatic glucagon on the initial, unidirectional phlorhizin-sensitive (brush border) transport of galactose and phlorhizin...
journal_title:Experimental physiology
pub_type: 杂志文章
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更新日期:1993-03-01 00:00:00
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journal_title:Experimental physiology
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更新日期:2019-07-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/expphysiol.1994.sp003784
更新日期:1994-07-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/expphysiol.1993.sp003676
更新日期:1993-03-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/expphysiol.1996.sp003950
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doi:10.1113/EP087198
更新日期:2018-12-01 00:00:00
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doi:10.1113/expphysiol.2004.027367
更新日期:2004-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2010-01-01 00:00:00
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journal_title:Experimental physiology
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doi:10.1113/expphysiol.1990.sp003438
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doi:10.1113/expphysiol.2005.031575
更新日期:2006-01-01 00:00:00
abstract::Embryonic stem (ES) cells are pluripotent cells isolated from the inner cell mass of blastocysts. ES cells are able to differentiate into the three primitive layers (endoderm, mesoderm and ectoderm) of the organism, including the germline. To study early stages of development, as well as to investigate the impact of a...
journal_title:Experimental physiology
pub_type: 杂志文章,评审
doi:
更新日期:2000-11-01 00:00:00
abstract::Rats were submitted to 14 days of hindlimb suspension in order to examine the contractile and elastic properties of the soleus muscles under disuse conditions. The calcium/strontium activation properties, the maximal shortening velocity (V0), as well as the time behaviour of force transients following quick releases a...
journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1111/j.1469-445x.1999.tb00075.x
更新日期:1999-01-01 00:00:00
abstract::Increased fetal lung expansion, induced by tracheal obstruction (TO), is a potent stimulus for fetal lung growth, but rapidly reduces surfactant protein (SP) mRNA levels. Our aim was to determine the time course for the re-expression of the surfactant proteins in fetal lung tissue following the release of a TO and to ...
journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/eph8602088
更新日期:2001-01-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/expphysiol.1994.sp003772
更新日期:1994-05-01 00:00:00
abstract::Lateral ventricular volumes were monitored and quantified using accurately registered magnetic resonance images (MRIs) in six healthy individuals 30 min before and up to 4 h after ingestion of a glucose drink. The volume of the lateral ventricles increased by an average (+/- S.E.M.) of 2.4 +/- 0.4% as blood glucose le...
journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1111/j.1469-445x.1999.tb00085.x
更新日期:1999-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1113/eph8702277
更新日期:2002-01-01 00:00:00
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journal_title:Experimental physiology
pub_type: 杂志文章
doi:10.1113/EP086328
更新日期:2017-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1113/expphysiol.2012.069443
更新日期:2013-04-01 00:00:00