Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0033774 (pruritus)
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Subtotal parathyroidectomy was performed on 34 patients with severe renal insufficiency. The indications were grave clinical symptoms (pruritus, bone pains and mental disturbances), gastric ulcer and radiological abnormalities (metastatic calcifications, osteoporosis, fractures and subperiostal resorption). The serum calcium level was elevated in eight cases. The serum parathormone value was determined in 13 cases, it was elevated in all cases. Less than 500 mg tissue was removed in 12, between 500 and 6000 mg in 19 and over 6000 mg in 3 cases. Nodular hyperplasia was demonstrated in 11 and diffuse hyperplasia in 23 patients. The serum calcium and parathormone levels fell markedly after the operation, and pruritus, bone pains and mental disturbances were markedly alleviated. Complete recovery was achieved only by a successful renal transplantation, but the operation had often a favourable effect on the grave symptoms.
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PMID:Secondary hyperparathyroidism and parathyroidectomy in terminal chronic renal failure. 35 95

Autonomous hyperparathyroidism occurred in 15% of 152 patients maintained by long-term home dialysis during the past nine years. Twenty-two patients with elevated serum parathormone levels and progressive bone disease in the presence of normal serum phosphate and calcium levels were treated by subtotal parathyroidectomy. All had parathyroid hyperplasia. Eighteen of the 22 patients are presently alive and undergo dialysis. Symptoms of bone pain, pruritus, and muscle cramps had improved in three fourths of the patients. The serum parathormone level decreased from a preoperative average of 576 muLEq/mL to an average of 188 muLEq/mL postoperatively. All 18 patients, observed for six to 77 months, showed improvement in x-ray films of their bone disease. The autonomous hyperparathyroidism of end-stage renal disease is corrected by subtotal parathyroidectomy, and the effect is sustained.
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PMID:Results of parathyroidectomy for autonomous hyperparathyroidism. 47 37

Mast cells may be more abundant in the tissues of uremic patients and may contribute to itching via mediator release. Because mast cell (MC) granule release may be inhibited by ultraviolet B (UVB) radiation, we investigated skin MC in the superficial dermis by quantitative histomorphometry before and after whole body UVB for uremic itching. Toluidine blue-stained 3.5 mm punch biopsy specimens were examined with a micrometer grid after separate coding. Upon entry to the study, itching dialysis patients indicated their itching intensity on a visual analog scale (0 to 10). Concurrent study of living, related kidney donors (controls, n = 11) and their recipients (n = 11) showed no differences in MC number per unit area. Compared to controls, skin MC number was not greater in itching dialysis patients (n = 20). MC number decreased after 2 months of UVB from 1.6 +/- 0.6 (standard deviation) to 1.0 +/- 0.7 (n = 11, p = 0.025). Pre-UVB total plasma calcium correlated directly with itching intensity, but not with MC number. Plasma phosphate and intact parathyrin level were not statistically related to itching or MC number. Of the 14 subjects that completed UVB, 8 had objective benefit, and mean itching intensity declined from 7.1/10 to 5.2/10 in the 14 subjects. The conclusion is that although skin MC number may decline with chronic UVB, MC number is not related to uremic itching, and hypercalcemia, but not elevation of parathyrin or plasma phosphate, relates statistically to severe uremic itching.
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PMID:Mast cells and calcium in severe uremic itching. 160 64

This study was undertaken to determine the success of surgical treatment of advanced secondary (renal) hyperparathyroidism. From 1978 to 1985, total parathyroidectomy and autotransplantation (TPA) were performed for secondary hyperparathyroidism in 23 patients who had had dialysis for a mean of 6.5 years preoperatively. Indications for surgery included hypercalcemia, bone pain and pathologic fractures, metastatic calcification, and pruritus. Four glands were found and removed in all patients; 100-150 mg of diced tissue were autotransplanted to one forearm. Two patients died of myocardial infarction in the first postoperative week. Bone pain, present in 19 of 23 patients, was relieved almost immediately postoperatively and relief was sustained to death (of unrelated causes) or most recent follow-up in 13 patients. All fractures healed. All patients had markedly elevated serum parathormone (PTH) preoperatively and 14 of 23 were hypercalcemic. The group mean values of serum calcium, alkaline phosphatase, and PTH all fell to and remained in a normal range by 1 year postoperatively in that subset of patients who did not suffer recurrence. Six patients were reoperated on after 12 to 37 months with partial graft excision for recurrent bone pain and hypercalcemia. Bone pain in two of these patients was due to aluminum-associated bone disease and the diagnosis of recurrent secondary hyperparathyroidism was erroneous. The actual recurrence rate was thus 19 per cent. Consistent technical success, with no late hypocalcemia, was achieved and most patients were restored to medical manageability.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:A community hospital experience with total parathyroidectomy and autotransplantation for renal hyperparathyroidism. 368 58

Hormones of the thyroid gland (thyroxine, tri-iodothyronine) control the metabolism of cells and tissue of the body, while parathormone and calcitonine are balancing the intra- and extracellular levels of calcium and phosphorus by governing some metabolic functions of bones, kidney and small intestine. Growth, maturation and metabolic homeostasis of the organism depend, among other intrinsic factors, on a normal production and secretory rate of both thyroidal and parathyroidal hormones. Clinical conditions of hyperthyroidism induce 1. increased metabolic turnover of the body with transcutaneous heat loss, 2. disordered growth of hairs and nails, 3. hyperpigmentation of skin, 4. pruritus with or without urticaria. Pretibial (usually symmetrical) myxedema may be associated with conditions of either hyper- or hypothyroidism (e.g., Hashimoto's thyroiditis); if combined with bilateral exophthalmus and acropachyderma of fingers and toes, it is called Diamond syndrome, or E.M.O. syndrome. In hypothyroidism, the skin feels chilly and dry, looks pale, and may present follicular keratoses with or without secondary eczema. The hair appears dull and sparse due to disordered anagen phase. Skin wounds heal with delay. Diffuse myxedema originates in the papillary and periadnexal connective tissue and eventually extends to the dermis as a whole. Clinical conditions of hyperparathyroidism rarely cause secondary calcification of the skin; they may induce severe pruritus, particularly in secondary hyperparathyroidism due to renal failure. Impetigo herpetiformis or generalized pustular psoriasis, resp., may be set off by excessive surgical removal of the goiter. Congenital maldevelopment of both thymus and parathyroid gland leads to cellular immune deficiency with secondary chronic muco-cutaneous candidosis.
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PMID:[The thyroid gland, the parathyroid gland and the skin]. 648 58

Over 12 years, 49 patients with hyperparathyroidism secondary to chronic renal failure under treatment with hemodialysis were treated with total parathyroidectomy. A portion of one gland was implanted in the sternocleidomastoid muscle. The operative indications were elevation of parathormone, serum calcium, and phosphorus, levels, pruritus, bone pain, pathologic fractures, and myalgia. Special postoperative complications discussed are hyperkalemia, hemorrhage, and respiratory obstruction. There were no operative deaths. No postoperative tetany was seen. Total parathyroidectomy should be performed in chronic renal failure patients with persistent elevation of serum calcium and parathormone levels, and who have pain, fractures, or soft tissue calcification. All postoperative parathyroidectomy patients should be observed for possible hyperkalemia.
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PMID:Surgical management of renal hyperparathyroidism in the dialysis patient. 708 63

1 alpha-hydroxycholecalciferol [1 alpha (OH)D3], the synthetic analogue of 1,25-dihydroxycholecalciferol, the active metabolite of vitamin D, was administered for a period of 18 to 24 mo to an unselected group of 12 hemodialysis patients and to 2 patients after kidney transplantation. All patients responded with a significant rise in serum Ca and Mg. The whole-body 47Ca retention, used as an index of Ca absorption, rose in eight patients and decreased or remained unchanged in four, but its overall change was not significant. Serum immunoreactive parathormone showed a general tendency to decrease. From the clinical point of view, symptomatic relief of bone pain was seen in most dialysis patients, but no significant change occurred in transplant patients. The main side effects of 1 alpha (OH)D3 treatment were hypercalcemia and pruritus, which generally subsided after the dosage was tapered off.
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PMID:Long-term effects of 1 alpha-hydroxycholecalciferol therapy in chronic hemodialysis patients. 717 69

Sixteen patients with chronic renal failure underwent total parathyroidectomy and parathyroid autotransplantation into the muscle of the forearm. Pertinent preoperative medical history of these patients included renal osteodystrophy, metastatic vascular calcifications, intractable itching and uncontrollable hyperphosphatemia. Efforts to control preoperative serum calcium and elevated serum parathormone levels were unsuccessful. The mass of parathyroid tissue implanted, in most instances, was approximately half that used in other series. Postoperatively, all patients received vitamin D and calcium orally, which were gradually decreased. Fourteen of the 16 patients had relief of symptoms, and all had restoration of parathormone levels to normal or slightly above normal, although in two patients, partial excision of hyperfunctioning tissue from the forearm was subsequently required because of recurring symptoms of secondary hyperparathyroidism. All patients had evidence of functioning grafts six to 40 months postoperatively or until death, attributable to intercurrent causes. The success of total parathyroidectomy and parathyroid autotransplantation in patients with chronic renal failure and symptomatic secondary hyperparathyroidism makes this a viable approach to the disease in such patients.
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PMID:Total parathyroidectomy and parathyroid autotransplantation in patients with chronic renal failure. 724 85

Sixty-one patients with chronic renal failure and secondary hyperparathyroidism underwent total parathyroidectomy and parathyroid autograft. Symptoms relieved by parathyroidectomy included bone pain, pruritus, soft tissue calcification, muscle weakness and healing of fractures. Serum parathormone levels measured before and after operation in 48 patients returned to normal in all but two patients. Serum alkaline phosphatase levels also returned toward normal after operation, except in one patient with a retained parathyroid gland. Complete radiographic studies before and after operation were available in 30 of 61 patients. Twenty-three of 24 patients with osteitis fibrosa had evidence of healing, and in one patient no change occurred. Osteosclerosis noticed in 23 patients improved slightly in eight patients, did not change in 14 and became worse in one. Pathologic examinations revealed 45 patients to have diffuse hyperplasia and 16 nodular hyperplasia. There were two early postoperative deaths, in the first 30 days, and 16 late postoperative deaths, from four months to four years afterward. In no case did the operation contribute to death. Some patients required the administration of supplemental calcium after operation, but in no instance did profound hypocalcemia occur. No patient developed recurrent hyperparathyroidism.
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PMID:Treatment of secondary hyperparathyroidism in patients with chronic renal failure by total parathyroidectomy and parathyroid autograft. 724 22

The majority of patients with secondary hyperparathyroidism caused by chronic renal insufficiency are successfully managed medically. However, approximately 5-10 per cent develop refractory symptoms such as bone pain and pruritus requiring palliative surgical treatment. We present a series of 16 consecutive patients who were managed with sub-total parathyroidectomy over a 6-year period. With follow-up of 12-60 months, there were no operative mortalities or significant perioperative morbidities. All patients had significant improvement or resolution of their symptoms. All had biochemical improvement with reductions in their serum calcium and parathormone levels. No patients have required re-exploration for persistent or recurrent hyperparathyroidism, and there have been no cases of permanent hypoparathyroidism. We feel that sub-total parathyroidectomy remains the optimal treatment for refractory secondary hyperparathyroidism. It offers several advantages over total parathyroidectomy with autotransplantation.
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PMID:Surgical treatment of secondary hyperparathyroidism in patients with chronic renal failure by sub-total parathyroidectomy. 803 Aug 24


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