Member of the Association of American Physicians
Leonard J. Deftos focuses on Internal medicine, Endocrinology, Calcitonin, Parathyroid hormone and Parathyroid hormone-related protein. The Internal medicine study combines topics in areas such as Molecular biology and Gene expression. His studies in Endocrinology integrate themes in fields like Cell culture, Calcium and Chromogranin A.
His Calcitonin research incorporates elements of Immunoassay, Hormone, Basal and Thyroid carcinoma. His Parathyroid hormone study combines topics from a wide range of disciplines, such as Amino acid, Secretion, Peptide sequence and Radioimmunoassay. His Parathyroid hormone-related protein study incorporates themes from Immunocytochemistry, Messenger RNA, Lung and Prostate.
His primary scientific interests are in Internal medicine, Endocrinology, Calcitonin, Parathyroid hormone-related protein and Parathyroid hormone. His study in Calcium, Radioimmunoassay, Chromogranin A, Cancer and Receptor falls under the purview of Internal medicine. His research integrates issues of Molecular biology and Endocrine system in his study of Chromogranin A.
His research in Endocrinology intersects with topics in Calcium metabolism and Cell culture. In general Calcitonin, his work in Calcitonin secretion is often linked to Pentagastrin linking many areas of study. His work in Parathyroid hormone-related protein tackles topics such as Cancer research which are related to areas like Prostate cancer and Tumor progression.
Internal medicine, Endocrinology, Parathyroid hormone-related protein, Cancer research and Pathology are his primary areas of study. His work deals with themes such as Peptide and Cell biology, which intersect with Internal medicine. Leonard J. Deftos has included themes like Calcium metabolism and Calcium in his Endocrinology study.
His Parathyroid hormone-related protein research includes elements of Cancer, Peptide sequence, Carcinoma, Lung cancer and Gene isoform. The study incorporates disciplines such as Collagen receptor, Integrin, Cell adhesion, Metastasis and Tumor progression in addition to Cancer research. His Pathology research integrates issues from Urine and Early detection.
Leonard J. Deftos mostly deals with Endocrinology, Internal medicine, Tumor progression, Metastasis and Prostate cancer. He interconnects Calcium metabolism, Calcium and Matrix metalloproteinase in the investigation of issues within Endocrinology. His biological study spans a wide range of topics, including Extracellular and Chondrocyte, Cartilage.
Leonard J. Deftos studied Tumor progression and Pathology that intersect with Skeleton and Osteoclast. His research on Metastasis also deals with topics like
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1,25-dihydroxyvitamin D3 receptors in human leukocytes
DM Provvedini;CD Tsoukas;LJ Deftos;SC Manolagas.
Science (1983)
New biochemical marker for bone metabolism. Measurement by radioimmunoassay of bone GLA protein in the plasma of normal subjects and patients with bone disease.
P A Price;J G Parthemore;L J Deftos.
Journal of Clinical Investigation (1980)
Biochemical evaluation of patients with cancer-associated hypercalcemia: evidence for humoral and nonhumoral groups.
Andrew F. Stewart;Ronald Horst;Leonard J. Deftos;Edwin C. Cadman.
The New England Journal of Medicine (1980)
Secretion of chromogranin A by peptide-producing endocrine neoplasms.
Daniel T. O'Connor;Leonard J. Deftos.
The New England Journal of Medicine (1986)
The rate of bone mineral loss in normal men and the effects of calcium and cholecalciferol supplementation.
Eric S. Orwoll;Shelia K. Oviatt;Michael R. McClung;Leonard J. Deftos.
Annals of Internal Medicine (1990)
Synthesis of a biologically active N-terminal tetratriacontapeptide of parathyroid hormone.
J. T. Potts;G. W. Tregear;H. T. Keutmann;H. D. Niall.
Proceedings of the National Academy of Sciences of the United States of America (1971)
Expression of messenger ribonucleic acids encoding a parathyroid hormone-like peptide in normal human and animal tissues with abnormal expression in human parathyroid adenomas.
Kyoji Ikeda;Eleanor C. Weir;Marguerite Mangin;Priscilla S. Dannies.
Molecular Endocrinology (1988)
1,25-Dihydroxyvitamin D3 stimulates the alkaline phosphatase activity of osteoblast-like cells.
S C Manolagas;D W Burton;L J Deftos.
Journal of Biological Chemistry (1981)
Chromogranin A: Immunohistology reveals its universal occurrence in normal polypeptide hormone producing endocrine glands
Daniel T. O'Connor;Daniel T. O'Connor;Douglas Burton;Douglas Burton;Leonard J. Deftos;Leonard J. Deftos.
Life Sciences (1983)
Influence of Age and Sex on Plasma Calcitonin in Human Beings
L. J. Deftos;M. H. Weisman;G. W. Williams;D. B. Karpf.
The New England Journal of Medicine (1980)
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