Abstract:
BACKGROUND:Urine calcium after an overnight fast is higher in osteoporotic than in normal post-menopausal women. The question is whether this is the cause or effect of the bone-losing state. OBJECTIVE:To establish whether the elevated obligatory calcium loss in osteoporotic women is due to a raised filtered load of calcium or to reduced renal tubular reabsorption of calcium. DESIGN:Covariance analysis using total plasma calcium and its fractions as the covariates. PATIENTS:Eighty-two untreated post-menopausal women without vertebral compression and 137 untreated post-menopausal with vertebral compression all between the ages of 61 and 75 years. MEASUREMENTS:After an overnight fast, calcium, albumin, globulins, anion gap and bicarbonate were measured in the plasma, and calcium, sodium and creatinine in the urine. The calcium fractions in plasma and the calcium/creatinine and sodium/creatinine ratios in urine were calculated. Bone density was measured in the distal forearm. RESULTS:The ultrafiltrable and ionized calcium in the plasma and the calcium/creatinine ratio in the urine were significantly higher in the women with vertebral compression than in those without. On covariance analysis, neither total plasma calcium nor any of the plasma calcium fractions made a significant contribution to the difference in fasting urine calcium between normal and osteoporotic women, whether bone status was defined by vertebral compression or by bone density. CONCLUSIONS:The increased obligatory calcium loss in osteoporotic women is not due to an increase in the filtered load of calcium and must therefore reflect reduced renal tubular reabsorption. This implies that the calcium loss in the urine is not the result of increased bone resorption but is more likely to be causal.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Nordin BE,Horowitz M,Need A,Morris HAdoi
10.1111/j.1365-2265.1994.tb03782.xsubject
Has Abstractpub_date
1994-07-01 00:00:00pages
41-5issue
1eissn
0300-0664issn
1365-2265journal_volume
41pub_type
杂志文章abstract:OBJECTIVE:The autoimmune thyroid diseases, Graves disease and autoimmune hypothyroidism, result from a complex interaction between genetic, environmental and endogenous factors. The genetic loci conferring susceptibility remain unclear. A recent report has demonstrated an association between a microsatellite polymorphi...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.1710996.x
更新日期:1997-05-01 00:00:00
abstract::Twenty-seven patients starting regular haemodialysis were treated with a 1 microgram daily dose of 1alpha-hydroxyvitamin D3 and concurrent aluminium hydroxide therapy to prevent hyperphosphataemia. There was an increase in plasma calcium, but no significant improvement in plasma alkaline phosphatase activity or parath...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1977.tb03372.x
更新日期:1977-12-01 00:00:00
abstract:OBJECTIVE:The objective of the present study was to elucidate the parathyroid responsiveness by measurements of blood ionized calcium and serum intact parathyroid hormone (PTH) concentrations, before and during trisodium citrate induced hypocalcaemia. PATIENTS AND CONTROLS:Sixteen patients with primary hyperparathyroi...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1992.tb02336.x
更新日期:1992-10-01 00:00:00
abstract:OBJECTIVE:To study the effects of short (6 months) and longer-term (up to 24 months) growth hormone (GH) replacement therapy using a dose titration regimen, on lipid and glucose metabolism in GH-deficient, hypopituitary adults. DESIGN:On-going open study of GH treatment up to 24 months. Measurements were performed at ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2000.01108.x
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:Hypopituitarism diagnosed in childhood, adolescence and young adulthood has the potential to affect growth and somatic development. Less is known about the impact of such a diagnosis on other aspects of development. DESIGN:An analysis of the KIMS database (Pfizer International Metabolic Database) was perform...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13291
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:The insulin tolerance test (ITT) has been suggested as the gold standard for diagnosing GH deficiency (GHD). The ITT is, however, potentially hazardous. Glucose monitoring during the ITT varies between centres and there is surprisingly little information on the actual level of blood glucose nadir and the dura...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2006.02436.x
更新日期:2006-02-01 00:00:00
abstract::We have investigated the role of endogenous opioid peptides in the release of oxytocin (OT) in response to breast feeding and breast stimulation in humans. Five breast feeding women were studied on two separate occasions within 4 weeks of delivery. Saline or naloxone, 4 mg bolus and 6 mg/h, was administered intravenou...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1990.tb00468.x
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:We investigated correlations between age-related changes in circulating metabolites and arterial stiffness in impaired fasting glucose (IFG). DESIGN, SUBJECTS, MEASUREMENT:This prospective cohort study included 602 healthy, normal fasting glucose (NFG) subjects (30-65 years old) who underwent triennial medic...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12821
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:Riedel's thyroiditis (RT) is a very rare chronic fibrosing thyroiditis that is often associated with multifocal fibrosclerosis. Although the relationship of RT and IgG4-related disease (IgG4-RD) has been suggested, the expression of IgG and IgG4 in thyroid tissues of patients with RT has seldom been studied. ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14390
更新日期:2020-12-10 00:00:00
abstract:BACKGROUND:Traditionally, acromegaly evaded diagnosis until in its clinically obvious later stages when treatment is more difficult. Over the last 25 years diagnostic tests have improved, but whether clinical disease detection also improved was unknown, so we tested if disease severity at diagnosis had changed from 198...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03626.x
更新日期:2010-02-01 00:00:00
abstract:CONTEXT:Steroid 5α-reductase type 2 deficiency (5α-RD2) is a male-limited, autosomal recessive inherited disease. Affected 46, XY individuals usually present with ambiguous genitalia at birth. An early and precise diagnosis is of great value to the long-term prognosis of the disease. OBJECTIVE:To describe the clinical...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12456
更新日期:2014-11-01 00:00:00
abstract::Current guidelines do not recommend the routine use of somatostatin analogue pretreatment prior to surgery in patients with growth hormone-secreting pituitary tumours. In theory, presurgical use of somatostatin analogues should improve metabolic control and reduce soft tissue swelling, leading to improved anaesthetic ...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/cen.12553
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to investigate whether the absence of increased 5 alpha-reductase activity explained the absence of hirsutism in premenopausal obese women with increased free testosterone (FT) levels. DESIGN:As in hyperandrogenicity there generally exists evidence for increased 5 alpha-reductase act...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1992.tb02264.x
更新日期:1992-06-01 00:00:00
abstract::We have studied the inositol phospholipid turnover response to thyrotrophin-releasing hormone (TRH) gonadotrophin-releasing hormone (GnRH) and arginine vasopressin (AVP) in five corticotroph and six somatotroph pituitary adenomas. GnRH (100 nM) increased inositol phospholipid turnover in five of five somatotroph adeno...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1990.tb00467.x
更新日期:1990-07-01 00:00:00
abstract::Recent evidence suggests that oxytocin (OXT) and arginine vasopressin (AVP) are involved in the response to stress. We have examined the changes in peripheral plasma OXT during abdominal surgery in eight patients (six males, two female; ages 60-82 years) undergoing hemicolectomy and compared the results with those for...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1988.tb01213.x
更新日期:1988-03-01 00:00:00
abstract:OBJECTIVE:No single histological or molecular marker is diagnostic for malignant phaeochromocytomas and paragangliomas (PPGLs). This study aimed to establish and evaluate a prognostic nomogram to improve the prediction of metastatic probability in individual PPGL patients. METHODS:Three hundred and 47 consecutive PPGL...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13357
更新日期:2017-08-01 00:00:00
abstract::Thirteen normal children, seven males and six females, during early puberty (I-II according to Tanner), have been studied. Each subject was injected at weekly intervals and in random order with 100 micrograms of LHRH, 0.2 mg/kg of naloxone and 0.9% saline in single bolus. The gonadotrophin response was evaluated. The ...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1984.tb00086.x
更新日期:1984-03-01 00:00:00
abstract::A radioimmunoassay (RIA) procedure was devised for the estimation of PRL in eluates of dried whole blood from filter paper. Levels of PRL were measured in newborn blood obtained during the first week of life from 530 infants of normal birthweight (greater than 2500 g) with normal T4 values, 114 infants of normal birth...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03253.x
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:Cabergoline therapy normalizes prolactin levels and reduces the size of macroprolactinomas. However there are no data indicating whether cabergoline can normalize growth hormone secretion in patients who were growth hormone deficient at the time of diagnosis of a macroprolactinoma. SUBJECTS AND METHODS:We st...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2000.01137.x
更新日期:2000-11-01 00:00:00
abstract::The growth hormone-insulin-like growth factor 1 (GH-IGF-1) axis plays an important role in modulating the peripheral metabolism of glucocorticoids mainly through its effect on the isoenzyme 11 beta-hydroxysteroid dehydrogenase 1 (11beta-HSD1) which, in vivo, functions as a reductase catalysing the conversion of cortis...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2265.2007.02763.x
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:Iodide (I(-)) is crucial for foetal thyroid function. Foetal iodide results from maternal circulating iodide and from deiodination of iodothyronines within the placenta. The Na(+)/I(-) symporter (NIS) localized in placental cells appears to be involved in iodide exchange. Low NIS expression has been reported...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2006.02577.x
更新日期:2006-10-01 00:00:00
abstract::The possibility of differences in glucocorticoid sensitivity between normal and cystic fibrosis fibroblasts was studied in cultured cells derived from forearm skin biopsies. Both normal and cystic fibrosis cells bound tritiated dexamethasone with high affinity (Kd 37 degrees C approximately equal to 10 nmol/1) to a li...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1983.tb00586.x
更新日期:1983-04-01 00:00:00
abstract:OBJECTIVE:Gitelman's syndrome, recognized as a variant of Bartter's syndrome, is characterized by hypokalaemic metabolic alkalosis in combination with hypomagnesaemia and hypocalciuria. Overlapping biochemical features in Gitelman's syndrome and Bartter's syndrome has been observed. Here, we investigated the clinical, ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03649.x
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:There is increasing evidence for the role of cytokines in pituitary differentiated function and tumorigenesis, but the spectrum of cytokines found in the pituitary is unknown. Therefore profiles of cytokine expression were determined in different human anterior pituitary adenoma sub-types. DESIGN:The reverse...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1996.d01-1554.x
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVE:The development and progression of sporadic adrenocortical tumours are poorly understood. In autopsy studies adrenocortical tumours are found in between 2 and 9% of the general population. In congenital adrenal hyperplasia (CAH), decreased production of cortisol leads to increased secretion of ACTH from the p...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1999.00655.x
更新日期:1999-03-01 00:00:00
abstract::Pituitary homogenates were prepared from patients undergoing pituitary ablation for breast or prostatic carcinoma (controls) and from patients with either PRL- and GH-secreting pituitary adenomas or from patients with 'functionless' pituitary tumours. The principal subcellular organelles, plasma membrane, lysosomes, m...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1984.tb01389.x
更新日期:1984-11-01 00:00:00
abstract:OBJECTIVE:Infusion of GH secretagogues appears to be a novel endocrine approach to reverse the catabolic state of critical illness, through amplification of the endogenously blunted GH secretion associated with a substantial IGF-I rise. Here we report the dynamic characteristics of spontaneous nightly TSH and PRL secre...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.1997.3371118.x
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVE:Provocative stimulation tests for GH assessment have poor reproducibility and can often elicit false positive results in normal children. The aim of our study was to evaluate the capability of pegvisomant, as an enhancer of GH secretion, in unmasking false-positive results in short children undergoing GH test...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2007.03132.x
更新日期:2008-06-01 00:00:00
abstract::A convenient, sensitive radioimmunoassay of free thyroxine in serum dialysates is described. The method utilizes a solid phase separation system (pre-formed double antibody) and a relatively short incubation period (220 min) with a staggered addition of tracer. Blanks were low and consistent. The normal range for non-...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb03153.x
更新日期:1982-01-01 00:00:00
abstract::The responses of plasma adrenocorticotrophin (ACTH), cortisol, growth hormone (GH) and prolactin to insulin-induced hypoglycaemia were studied in six lean male subjects (age 22-29 years). Intravenous insulin tests were performed with and without oxytocin infusion. Blood sugar nadir occurred at the onset of symptoms (t...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1988.tb01223.x
更新日期:1988-09-01 00:00:00