theophylline has been researched along with Pheochromocytoma in 10 studies
Pheochromocytoma: A usually benign, well-encapsulated, lobular, vascular tumor of chromaffin tissue of the ADRENAL MEDULLA or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of EPINEPHRINE and NOREPINEPHRINE, is HYPERTENSION, which may be persistent or intermittent. During severe attacks, there may be HEADACHE; SWEATING, palpitation, apprehension, TREMOR; PALLOR or FLUSHING of the face, NAUSEA and VOMITING, pain in the CHEST and ABDOMEN, and paresthesias of the extremities. The incidence of malignancy is as low as 5% but the pathologic distinction between benign and malignant pheochromocytomas is not clear. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1298)
| Excerpt | Relevance | Reference |
|---|---|---|
| "The effects of 8-phenyl and 8-cycloalkyl substituents on the activity of theophylline, caffeine, 1,3-dipropylxanthine, 1,3-dipropyl-7-methylxanthine, 3-propylxanthine, and 1-propylxanthine at A1 adenosine receptors of rat brain and fat cells and at A2 adenosine receptors of rat pheochromocytoma PC12 cells and human platelets are compared." | 3.67 | Effects of 8-phenyl and 8-cycloalkyl substituents on the activity of mono-, di-, and trisubstituted alkylxanthines with substitution at the 1-, 3-, and 7-positions. ( Daly, JW; Padgett, WL; Shamim, MT; Ukena, D, 1989) |
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 9 (90.00) | 18.7374 |
| 1990's | 1 (10.00) | 18.2507 |
| 2000's | 0 (0.00) | 29.6817 |
| 2010's | 0 (0.00) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Shamim, MT | 1 |
| Ukena, D | 1 |
| Padgett, WL | 1 |
| Daly, JW | 1 |
| Ziegler, W | 1 |
| Unsicker, K | 1 |
| Kobayashi, S | 1 |
| Conforti, L | 1 |
| Pun, RY | 1 |
| Millhorn, DE | 1 |
| Ikeno, T | 1 |
| Guroff, G | 1 |
| Schubert, D | 1 |
| Heinemann, S | 1 |
| Kidokoro, Y | 1 |
| Smith, U | 1 |
| Sjöström, L | 1 |
| Stenström, G | 1 |
| Isaksson, O | 1 |
| Jacobsson, B | 1 |
| Hoshi, T | 1 |
| Garber, SS | 1 |
| Aldrich, RW | 1 |
| Shen, RS | 1 |
| Zhang, YX | 1 |
| Perez-Polo, JR | 1 |
| Roskoski, R | 1 |
| White, L | 1 |
| Knowlton, R | 1 |
| Roskoski, LM | 1 |
| Severin, ES | 1 |
| Kondratyev, AD | 1 |
1 review available for theophylline and Pheochromocytoma
| Article | Year |
|---|---|
Growth regulation by nerve growth factor.
Topics: Animals; Bucladesine; Cell Differentiation; Cell Division; Cell Line; Dopamine beta-Hydroxylase; Enz | 1979 |
9 other studies available for theophylline and Pheochromocytoma
| Article | Year |
|---|---|
Effects of 8-phenyl and 8-cycloalkyl substituents on the activity of mono-, di-, and trisubstituted alkylxanthines with substitution at the 1-, 3-, and 7-positions.
Topics: Adenylyl Cyclases; Adipose Tissue; Adrenal Gland Neoplasms; Animals; Blood Platelets; Brain; Caffein | 1989 |
Differential effects of cyclic AMP and cholera toxin on nerve growth factor-induced neurite outgrowth from adrenal medullary chromaffin and pheochromocytoma cells.
Topics: Animals; Bucladesine; Cell Differentiation; Cell Line; Cholera Toxin; Chromaffin System; Clone Cells | 1981 |
Adenosine modulates hypoxia-induced responses in rat PC12 cells via the A2A receptor.
Topics: Adenosine; Adenosine Deaminase; Adrenal Gland Neoplasms; Animals; Calcium; Cell Hypoxia; Fluorescent | 1998 |
Cholinergic metabolism and synapse formation by a rat nerve cell line.
Topics: Acetylcholine; Acetyltransferases; Animals; Cell Line; Choline O-Acetyltransferase; Cyclic AMP; Kine | 1977 |
Studies on the catecholamine resistance in fat cells from patients with phaeochromocytoma.
Topics: Adipose Tissue; Adolescent; Adrenal Gland Neoplasms; Adult; Aged; Catecholamines; Cyclic AMP; Drug R | 1977 |
Effect of forskolin on voltage-gated K+ channels is independent of adenylate cyclase activation.
Topics: 1-Methyl-3-isobutylxanthine; Adenylyl Cyclases; Adrenal Gland Neoplasms; Colforsin; Cyclic AMP; Elec | 1988 |
Regulation of GTP cyclohydrolase I and dihydropteridine reductase in rat pheochromocytoma PC 12 cells.
Topics: 1-Methyl-3-isobutylxanthine; 8-Bromo Cyclic Adenosine Monophosphate; Adrenal Gland Neoplasms; Animal | 1989 |
Regulation of tyrosine hydroxylase activity in rat PC12 cells by neuropeptides of the secretin family.
Topics: Adrenal Gland Neoplasms; Animals; Calcium; Colforsin; Cyclic AMP; Dihydroxyphenylalanine; Enzyme Act | 1989 |
Regulation of differentiation of PC12 cells by nerve growth factor.
Topics: Adenylyl Cyclases; Animals; Bucladesine; Cell Differentiation; Cell Line; Cyclic AMP; Nerve Growth F | 1988 |