scholarly journals G-Cell

2020 ◽  
Author(s):  
Keyword(s):  
G Cell

scholarly journals Haplotypes of the HLA-G 3’ Untranslated Region Respond to Endogenous Factors of HLA-G+ and HLA-G- Cell Lines Differentially

PLoS ONE ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. e0169032 ◽  
Author(s):  
Isabelle Poras ◽  
Layale Yaghi ◽  
Gustavo Martelli-Palomino ◽  
Celso T. Mendes-Junior ◽  
Yara Costa Netto Muniz ◽  
...  
Keyword(s):  
Cell Lines ◽  
Untranslated Region ◽  
Endogenous Factors ◽  
G Cell

CORRELATION OF IODIDE TRANSPORT WITH Na+, K+ -ATPase, HCO−3-ATPase AND CARBONIC ANHYDRASE ACTIVITIES IN DIFFERENT FUNCTIONAL STATES OF THE RAT THYROID GLAND

1982 ◽  
Vol 92 (3) ◽  
pp. 371-379 ◽  
Author(s):  
S.-Y. CHOW ◽  
J. W. KEMP ◽  
D. M. WOODBURY
Keyword(s):  
Thyroid Gland ◽  
Carbonic Anhydrase ◽  
Protein Content ◽  
Chronic Treatment ◽  
Cell Water ◽  
Iodide Uptake ◽  
G Cell ◽  
Functional States ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

The effects of thyrotrophin, hypophysectomy, and chronic treatment with thyroxine and methimazole on radioiodide uptake (thyroid/plasma (T/P) 125I− ratio), protein and DNA contents and activities of Na+,K+ -ATPase, HCO−3-ATPase, and carbonic anhydrase (CA) of rat thyroid gland were evaluated. Thyrotrophin given to intact rats slightly increased thyroid iodide uptake, did not affect protein or DNA content, and slightly inhibited CA activity (units/g cell water). Hypophysectomy markedly decreased T/P 125I− ratio, increased protein content, decreased activity of Na+,K+-ATPase, and slightly increased HCO−3-ATPase (nmol/mg DNA per min) and CA (units/g cell water) activities. Thyro-trophin given to hypophysectomized rats (as compared with untreated hypophysectomized control animals) markedly increased T/P 125I− ratio, slightly decreased protein content and decreased Na+,K+-ATPase and CA activities. Chronic treatment with methimazole increased T/P 125I− ratio, decreased protein content, markedly increased Na+,K+-ATPase and HCO−3-ATPase activities, and decreased CA activity. Chronic treatment with thyroxine, in contrast, decreased T/P 125I− ratio, decreased Na+,K+-ATPase activity, and increased CA activity. There was a significant inverse correlation between T/P 125I− ratio and CA activity in follicular cells for the various induced functional states of the thyroid.

The Input-Output Organization Of a Pair of Giant Neurones in the Mollusc, Anisodoris Nobilis (MACFARLAND)

1969 ◽  
Vol 51 (3) ◽  
pp. 615-634
Author(s):  
A. L. F. GORMAN ◽  
M. MIROLLI
Keyword(s):  
Synaptic Contact ◽  
Excitatory Input ◽  
Cell Functions ◽  
G Cells ◽  
G Cell ◽  
Intracellular Stimulation ◽  
Peripheral Cells ◽  
P Cells ◽  
Post Synaptic Potential ◽  
Stimulation Of

1. Each of the two gastro-oesophageal ganglia of the nudibranch mollusc, Anisodoris nobilis, contains one giant neurone (G cell) whose axon is directed toward the oesophagus in the gastro-oesophageal nerve. 2. In the absence of stimulation the G cells are normally silent. However, they receive inhibitory and excitatory synaptic inputs from more central ganglia and a predominantly excitatory input from the periphery. The inputs from the central ganglia are bilaterally distributed to both G cells, whereas the inputs from the periphery are limited to the ipsilateral G cell. 3. Intracellular stimulation shows that there is no interaction between the G cells, nor between the G cell and other cells in the same or contralateral gastro-oesophageal ganglia. 4. The axon of the G cell makes synaptic contact with a series of peripheral cells (P cells). In most P cells the post-synaptic potential elicited by intracellular stimulation of the G cell is constant in amplitude and latency and probably results from a unitary monosynaptic contact. Intracellular stimulation shows that the P cells are not connected to the G cell. 5. The P cells are inter-connected by low-resistance electrotonic junctions which allow slow potentials of either polarity to spread between cells. These junctions exist between distant as well as adjacent peripheral neurones. 6. Our results show that the G cell functions as a command interneurone for an aggregate of electrically interconnected peripheral neurones.

G-Cell

2021 ◽  
pp. 1-2
Author(s):  
Stefano La Rosa
Keyword(s):  
G Cell

Ontogeny of tissue and serum gastrin concentrations in fetal and neonatal sheep

1981 ◽  
Vol 241 (3) ◽  
pp. G235-G241
Author(s):  
L. M. Lichtenberger ◽  
S. S. Crandell ◽  
P. A. Palma ◽  
F. H. Morriss
Keyword(s):  
Serum Gastrin ◽  
Molecular Form ◽  
Cell Number ◽  
Maternal Serum ◽  
Hormone Concentration ◽  
Indwelling Catheters ◽  
G Cell ◽  
Fetal Serum ◽  
Serum Hormone ◽  
Serum Gastrin Concentration

We investigated the perinatal ontogenic changes in ovine serum and tissue gastrin concentration. Fetal and maternal serum gastrin levels in serums obtained from indwelling catheters in the fetal and maternal circulations and tissue gastrin levels were assessed by radioimmunoassay and immunohistochemistry. Fetal serum gastrin concentration was undetectable until the 107th day of gestation and significantly increased to levels surpassing maternal values. Neonatal serum hormone concentration continued to rise, reaching a peak during the 4th postnatal wk and decreasing after the 4th wk coincident with weaning. Maternal serum gastrin concentration did not vary during pregnancy and did not correlate with fetal serum gastrin levels. Fetal abomasal and duodenal gastrin concentrations and abomasal G-cell number increased in parallel with the developmental alterations in fetal serum hormone levels during gestation. The developmental increase in abomasal gastrin concentration was not associated with a shift in the molecular form of the hormone. These findings support the hypothesis that circulating gastrin in the fetus is of fetal origin.

Sulfonolipid content of Cytophaga and Flexibacter species isolated from soil and cultured under different nutrient and temperature regimes

1994 ◽  
Vol 40 (2) ◽  
pp. 132-139 ◽  
Author(s):  
R. A. Drijber ◽  
W. B. McGill
Keyword(s):  
Biochemical Marker ◽  
Narrow Range ◽  
Growth Conditions ◽  
Lipid Biomarkers ◽  
Cell Protein ◽  
G Cell ◽  
Temperature Regimes ◽  
Cell Components ◽  
Lipid Phosphate ◽  
Soil Batch

Gliding bacteria of the genera Cytophaga and Flexibacter contain an unusual sulfonolipid in their outer membrane that may be a potential biochemical marker for these organisms in soil. The precision with which a marker provides information about biomass varies with the range in marker content within the cells of the taxon under study. To evaluate this, Cytophaga and Flexibacter spp. were isolated from earthworm fecal pellets and soil, batch cultured with [35S]sulfate, and extracted for lipids. Sulfonolipid S was measured using isotope dilution techniques and lipid phosphate was determined by colorimetry. Ratios of sulfonolipid S to protein and to phospholipid P were compared among isolates grown under various conditions. Ratios of sulfonolipid S to phospholipid P from 0.22 to 0.98 confirmed sulfonolipids as major cell components of Cytophaga and Flexibacter spp. Two criteria essential to the success of sulfonolipids as a biomarker for these organisms in soil were met: (i) sulfonolipid concentration among the noncellulolytic isolates, with one exception, spanned a narrow range (40–60 μmol S/g cell protein), and (ii) this range in sulfonolipid concentration was maintained under the range of growth conditions studied here. Cellulolytic cytophagas, however, could be clearly differentiated from other Cytophaga and Flexibacter spp. on the basis of sulfonolipid content, 85–164 μmol S/g cell protein. This dichotomy in sulfonolipid content between cellulolytic and noncellulolytic isolates must be considered when interpreting data where sulfonolipids are used as a quantitative biomarker for Cytophaga and Flexibacter spp. in habitats where cellulolytic cytophagas are dominant.Key words: lipid biomarkers, cellulolytic cytophagas, Cytophaga, Flexibacter, sulfonolipids.

Zollinger-Ellison syndrome and antral G-cell hyperfunction in patients with resistant duodenal ulcer disease

2007 ◽  
Vol 8 (1) ◽  
pp. 87-93 ◽  
Author(s):  
B. ANNIBALE ◽  
L. MAGISTRIS ◽  
V. CORLETO ◽  
G. D'AMBRA ◽  
M. MARIGNANI ◽  
...  
Keyword(s):  
Duodenal Ulcer ◽  
Duodenal Ulcer Disease ◽  
Ulcer Disease ◽  
Zollinger Ellison Syndrome ◽  
G Cell
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