Reduction of serum gonadotropin concentrations after parathyroidectomy

1989 ◽  
Vol 120 (3) ◽  
pp. 379-382
Author(s):  
Anders Kristoffersson ◽  
Kjell Grankvist ◽  
Johannes Järhult
Keyword(s):  
Parathyroid Hormone ◽  
Luteinizing Hormone ◽  
Primary Hyperparathyroidism ◽  
Postmenopausal Women ◽  
Serum Calcium ◽  
Significant Alteration ◽  
Serum Lh ◽  
Plasma Estradiol ◽  
Serum Gonadotropin ◽  
Estradiol Concentration

Abstract. Calcium, parathyroid hormone, folliclestimulating hormone, luteinizing hormone, and estradiol were measured in 15 postmenopausal women with primary hyperparathyroidism before and 1 year after parathyroidectomy. Normalization of serum calcium concentrations (from 2.87 to 2.29 mmol/l) was followed by a highly significant fall in serum LH and FSH concentrations. No significant alteration occurred in plasma estradiol concentration.

scholarly journals P114 Effect of vitamin D on parathyroid hormone, serum calcium and bone mineral density in patients with primary hyperparathyroidism being managed conservatively

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Mahrukh Khalid ◽  
Vismay Deshani ◽  
Khalid Jadoon
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Bone Mineral ◽  
Serum Calcium ◽  
Mineral Density ◽  
Neck Of Femur ◽  
Vitamin D Levels ◽  
Significant Difference

Abstract Background/Aims  Vitamin D deficiency is associated with more severe presentation of primary hyperparathyroidism (PTHP) with high parathyroid hormone (PTH) levels and reduced bone mineral density (BMD). We analyzed data to determine if vitamin D levels had any impact on PTH, serum calcium and BMD at diagnosis and 3 years, in patients being managed conservatively. Methods  Retrospective analysis of patients presenting with PHPT. Based on vitamin D level at diagnosis, patients were divided into two groups; vitamin D sufficient (≥ 50 nmol/L) and vitamin D insufficient (≤ 50 nmol/L). The two groups were compared for age, serum calcium and PTH levels at diagnosis and after mean follow up of 3 years. BMD at forearm and neck of femur (NOF) was only analyzed in the two groups at diagnosis, due to lack of 3 year’s data. Results  There were a total of 93 patients, 17 males, mean age 70; range 38-90. Mean vitamin D level was 73.39 nmol/L in sufficient group (n = 42) and 34.48 nmol/L in insufficient group (n = 40), (difference between means -38.91, 95% confidence interval -45.49 to -32.33, p < 0.0001). There was no significant difference in age, serum calcium and PTH at the time of diagnosis. After three years, there was no significant difference in vitamin D levels between the two groups (mean vitamin D 72.17 nmol/L in sufficient group and 61.48 nmol/L in insufficient group). Despite rise in vitamin D level in insufficient group, no significant change was observed in this group in PTH and serum calcium levels. BMD was lower at both sites in vitamin D sufficient group and difference was statistically significant at NOF. Data were analyzed using unpaired t test and presented as mean ± SEM. Conclusion  50% of patients presenting with PHPT were vitamin D insufficient at diagnosis. Vitamin D was adequately replaced so that at 3 years there was no significant difference in vitamin D status in the two groups. Serum calcium and PTH were no different in the two groups at diagnosis and at three years, despite rise in vitamin D levels in the insufficient group. Interestingly, BMD was lower at forearm and neck of femur in those with sufficient vitamin D levels and the difference was statistically significant at neck of femur. Our data show that vitamin D insufficiency does not have any significant impact on PTH and calcium levels and that vitamin D replacement is safe in PHPT and does not impact serum calcium and PTH levels in the short term. Lower BMD in those with adequate vitamin D levels is difficult to explain and needs further research. Disclosure  M. Khalid: None. V. Deshani: None. K. Jadoon: None.

ENDOCRINE EFFECTS OF LITHIUM:

1978 ◽  
Vol 88 (3) ◽  
pp. 528-534 ◽  
Author(s):  
C. Christiansen ◽  
P. C. Baastrup ◽  
P. Lindgreen ◽  
I. Transbøl
Keyword(s):  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Serum Calcium ◽  
Lithium Treatment ◽  
Serum Magnesium ◽  
Endocrine Effects ◽  
Manic Depressive ◽  
Depressive Patients ◽  
Immunoreactive Parathyroid Hormone

ABSTRACT Ninety-six manic-depressive patients were studied during long-term lithium treatment. Highly significant elevations were observed respecting the levels of serum immunoreactive parathyroid hormone (P < 0.001) as well as the protein-corrected levels of serum calcium (P < 0.001) and serum magnesium (P <0.001), thus indicating a state of 'primary' hyperparathyroidism. The patients as a group had normophosphataemia and normophosphatasia supporting the impression of a rather mild state of biochemical hyperparathyroidism.

scholarly journals Normocalcemic primary hyperparathyroidism

2010 ◽  
Vol 54 (2) ◽  
pp. 106-109 ◽  
Author(s):  
John P. Bilezikian ◽  
Shonni J. Silverberg
Keyword(s):  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Serum Calcium ◽  
Kidney Stones ◽  
Bone Disease ◽  
Clinical Phenotype ◽  
Mineral Metabolism ◽  
Historical View ◽  
History Of ◽  
Excessive Secretion

Primary hyperparathyroidism is a common disorder of mineral metabolism characterized by incompletely regulated, excessive secretion of parathyroid hormone from one or more of the parathyroid glands. The historical view of this disease describes two distinct entities marked by two eras. When primary hyperparathyroidism was first discovered about 80 years ago, it was always symptomatic with kidney stones, bone disease and marked hypercalcemia. With the advent of the multichannel autoanalyzer about 40 years ago, the clinical phenotype changed to a disorder characterized by mild hypercalcemia and the absence of classical other features of the disease. We may now be entering a 3rd era in the history of this disease in which patients are being discovered with normal total and ionized serum calcium concentrations but with parathyroid hormone levels that are consistently elevated. In this article, we describe this new entity, normocalcemic primary hyperparathyroidism, a forme fruste of the disease.

scholarly journals The severe course of hyperparathyroidism in the elderly: Clinical cases

2009 ◽  
Vol 55 (1) ◽  
pp. 33-35
Author(s):  
N G Mokrysheva ◽  
S S Gulyaeva ◽  
L Ya Rozhinskaya ◽  
V N Smorshchok ◽  
M A Lysenko ◽  
...  
Keyword(s):  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Postmenopausal Women ◽  
Endocrine System ◽  
The Elderly ◽  
Phosphorus Metabolism ◽  
Adequate Treatment ◽  
Calcium And Phosphorus ◽  
Excessive Secretion ◽  
Clinical Cases

Primary hyperparathyroidism (PHPT) is a disease of the endocrine system caused by excessive secretion of parathyroid hormone (PTH) and is characterized by a pronounced violation of calcium and phosphorus metabolism. More recently, in Russia, PHPT was detected extremely rarely and often hid under the mask of recurrent urolithiasis, generalized osteoporosis and other pathologies. As a result, patients did not receive adequate treatment, which in a certain percentage of cases led to the development of serious complications.The clinical cases of severe PHPT in postmenopausal women are presented in this article.

scholarly journals Symptomatic Hypocalcemia due to Sodium Phosphate for Bowel Preparation following Minimally Invasive Parathyroidectomy

2011 ◽  
Vol 3 (2) ◽  
pp. 91-92
Author(s):  
Turkay Kirdak ◽  
Nusret Korun
Keyword(s):  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Minimally Invasive ◽  
Serum Calcium ◽  
Bowel Preparation ◽  
Sodium Phosphate ◽  
Minimally Invasive Parathyroidectomy ◽  
Invasive Parathyroidectomy ◽  
Symptomatic Hypocalcemia ◽  
Carpopedal Spasm

ABSTRACT This paper presents a case on symptomatic hypocalcemia due to sodium phosphate use for bowel preparation following parathyroidectomy. Serum calcium and parathyroid hormone were in normal levels postoperatively. Two months following the operation, phosphosoda was administered for bowel preparation. Following bowel preparation severe carpopedal spasm developed. It can be speculated that sodium phosphate administration for bowel preparation may precipitate hypocalcemic tetany in the patients undergoing parathyroidectomy for primary hyperparathyroidism.

BIOASSAY OF PARATHYROID HORMONE IN RATS BY DETERMINATION OF PLASMA CALCIUM, URINARY 32P EXCRETION AND SERUM ALKALINE PHOSPHATASE

1966 ◽  
Vol 35 (3) ◽  
pp. 229-238 ◽  
Author(s):  
R. J. TREACHER
Keyword(s):  
Alkaline Phosphatase ◽  
Parathyroid Hormone ◽  
Serum Calcium ◽  
Calcium Concentration ◽  
Serum Alkaline Phosphatase ◽  
Plasma Calcium ◽  
Significant Alteration ◽  
Good Precision ◽  
Serum Calcium Concentration

SUMMARY Methods for assay of parathyroid hormone based on an increase in serum calcium concentration, urinary 32P excretion and serum alkaline phosphatase elevation in parathyroidectomized rats have been compared and modifications introduced to improve sensitivity, precision, speed and ease of manipulation. Both the serum calcium and urinary 32P assay gave good precision (mean λ = 0·23 and 0·29, respectively) but by the serum calcium method less than 10 USP units of parathyroid hormone could not be detected, whereas the phosphaturic assay detects as little as 0·5 USP unit. Both assays are simple to perform and each requires only 2 days to complete. They can be combined in a single design using the same animals. Assays based on serum alkaline phosphatase levels in parathyroidectomized rats were not successful since it was impossible to produce a significant alteration in serum alkaline phosphatase by the administration of parathyroid hormone.

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