401
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Ulbig M, Kampik A, Landgraf R, Land W. The influence of combined pancreatic and renal transplantation on advanced diabetic retinopathy. Transplant Proc 1987; 19:3554-6. [PMID: 3313856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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402
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Hillebrand G, Castro LA, Landgraf R, Schleibner S, Illner WD, Abendroth D, Land W. Combined kidney/pancreas transplantation--poor long-term outcome of renal grafts. Transplant Proc 1987; 19:3909-10. [PMID: 3313960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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403
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Illner WD, Schleibner S, Abendroth D, Landgraf R, Land W. Recent improvement in clinical pancreas transplantation. Transplant Proc 1987; 19:3870-1. [PMID: 3313950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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404
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Abendroth D, Sunder-Plassmann L, Land W, Landgraf R. Changes of diabetic microangiopathy after pancreas transplantation. Transplant Proc 1987; 19:3886-7. [PMID: 3313955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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405
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Landgraf-Leurs MM, Modi E, Horn K, Landgraf R. Immunoturbidimetric assay for the determination of microalbuminuria using the Hitachi analyser. JOURNAL OF CLINICAL CHEMISTRY AND CLINICAL BIOCHEMISTRY. ZEITSCHRIFT FUR KLINISCHE CHEMIE UND KLINISCHE BIOCHEMIE 1987; 25:683-7. [PMID: 3694127 DOI: 10.1515/cclm.1987.25.10.683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A sensitive and specific immunoturbidimetric method is described for the determination of low concentrations of urinary albumin using a Hitachi 704 or 705 analyser. The sensitivity was 1 mg/l and the precision attained was good (CV 15%, 7% and 6% for low, medium and higher albumin concentrations). The assay was used to determine urinary albumin excretion rates in healthy controls (less than 15 micrograms/min) and in type I diabetics. Since microalbuminuria (30-200 micrograms/min) seems to be a good predictor for the development of diabetic nephropathy and other late diabetic complications, this assay is suitable for the necessary screening and follow-up of diabetic nephropathy. In contrast to RIA methods, no radioactive tracers are needed.
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406
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Land W, Landgraf R, Illner WD, Abendroth D, Kampik A, Jensen U, Lenhart FP, Burg D, Hillebrand G, Castro LA. Clinical pancreatic transplantation using the prolamine duct occlusion technique--the Munich experience. Transplant Proc 1987; 19:75-83. [PMID: 3303555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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407
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Landgraf-Leurs MM, Ladik T, Smolka B, Bock T, Schramm W, Spannagl M, Landgraf R. Increased thromboplastic potential in diabetes: a multifactorial phenomenon. KLINISCHE WOCHENSCHRIFT 1987; 65:600-6. [PMID: 3626428 DOI: 10.1007/bf01726667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Coagulation parameters, platelet aggregation, and thromboxane production as well as metabolic parameters were measured in 31 diabetic patients, 12 without and 19 with clinically manifest late complications, and in 14 healthy control subjects. Spontaneous in vitro aggregation as well as ADP, collagen, and arachidonic acid induced aggregation were higher in both groups of diabetic patients, without an increase in thromboxane B2 production. In diabetic patients with late complications an increase in fibrinogen, fibrinogen cyanogen bromide peptide, factor VIII related antigen, C1-esterase inhibitor, and antithrombin III was observed in comparison to healthy subjects. Fibrinogen, C1-esterase inhibitor, and factor VIII related antigen were already elevated in diabetic patients without clinically manifest late vascular complications. No strict correlations were found between serum glucose, glycosylated hemoglobin, and glycosylated albumin, on the one hand, and coagulation promoting or inhibiting factors, aggregation or thromboxane B2 production, on the other, in either control or diabetic subjects. Also no correlations existed between the coagulation parameters and the aggregation results. In vitro incubation of pooled normal plasma with different glucose concentrations had no influence on the methods by which the coagulation parameters were measured. These data indicate that rather early in the diabetic state many changes take place in different phases of the thrombostatic process, all resulting in an increased hemostatic diathesis.
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408
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Abendroth D, Illner WD, Landgraf R, Land W. Are late diabetic complications reversible after pancreas transplantation? A new method of follow-up of microcirculatory changes. Transplant Proc 1987; 19:2325-6. [PMID: 3274515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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409
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von Werder K, Müller OA, Landgraf R. [Superfluous endocrinologic diagnosis]. Internist (Berl) 1986; 27:566-75. [PMID: 3531073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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410
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Kretzschmar R, Landgraf R, Gjedde A, Ermisch A. Vasopressin binds to microvessels from rat hippocampus. Brain Res 1986; 380:325-30. [PMID: 3756483 DOI: 10.1016/0006-8993(86)90229-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Recent evidence suggests that vasopressin may influence the permeability of the endothelium of brain capillaries. We measured the binding of [125I]arginine-8-vasopressin ([125I]AVP) to microvessels isolated from different regions of the rat brain. The study revealed saturable and specific binding of [125I]AVP to microvessels isolated from hippocampus. Scatchard analysis confirmed a single class of high affinity sites with an equilibrium dissociation constant, Kd, of 3.2 nM and an apparent maximal binding capacity of 205 fmol/mg protein. No binding was observed to microvessels from neocortex and striatum.
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411
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Ermisch A, Landgraf R, Möbius P. Vasopressin and oxytocin in brain areas of rats with high or low behavioral performance. Brain Res 1986; 379:24-9. [PMID: 3742217 DOI: 10.1016/0006-8993(86)90251-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Animals were selected from a population of 55 rats which differed significantly in their ability to perform a behavioral task, a foot-shock motivated brightness discrimination (BD). Using highly specific and sensitive radioimmunoassays, the contents of arginine vasopressin (AVP) and oxytocin (OXT) were measured in 5 brain areas and the plasma of these animals. AVP levels in the septum/striatum and posterior pituitary of rats with high performance significantly exceeded those of the low performance group. Compared to the low performance rats, the OXT content of the high performance rats was higher in the septum/striatum, but was lower in the hippocampus. No significant differences between the groups were found in the hypothalamus, motor cortex and the plasma. The results suggest that both AVP and OXT are signals in central pathways involved in information processing. In particular, high endogenous AVP and OXT levels in neurons of the septum/striatum and low OXT levels within hippocampal neurons might be prerequisites for high performance in the conditioned BD reaction.
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412
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Witte A, Landgraf R, Markl A, Boergen KP, Hasenfratz G, Pickardt CR. Treatment of Graves' ophthalmopathy with cyclosporin A. KLINISCHE WOCHENSCHRIFT 1985; 63:1000-4. [PMID: 3840854 DOI: 10.1007/bf01737636] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
To evaluate the effect of Cyclosporin A in the management of Graves' ophthalmopathy, we treated 13 patients with severe euthyroid endocrine eye disease with the immunosuppressive drug. Follow up consisted of clinical investigation, laboratory evaluation with detailed thyroid function tests and complete ophthalmological assessments including A and B scan ultrasound and computerized tomography (CT) of the orbits. Cyclosporin A given over 4-7 months resulted in improvement of clinical signs and symptoms of the disease due to a positive effect of the drug on soft tissue changes. The more objective methods did not demonstrate any unequivocal change in proptosis, visual acuity, intraocular pressure and thickness of extraocular muscles. Cyclosporin A was not able to stop acute progression of ophthalmopathy in one patient and did not obviate surgical decompression of the orbits in two more patients. There was no measurable effect of treatment on the underlying immunological process with regard to thyroid disease.
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413
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Abstract
The brain is both the source and the recipient of peptide signals. The question is: Do endogenous, blood-borne peptide molecules influence brain function? Brain regions with the tight capillaries of the blood-brain barrier (BBB) extract low but measurable amounts of labeled peptide molecules from an intracarotid bolus injection. In the rat, the extraction fractions of beta-casomorphin-5, DesGlyNH2-arginine-vasopressin, arginine-vasopressin, lysine-vasopressin, oxytocin, gonadoliberin, substance P, and beta-endorphin, studied in this laboratory, range from 0.5% (substance P) to 2.4% (arginine-vasopressin). Extraction varies little among the 15 examined brain regions. As shown for arginine-vasopressin, the extracted peptides may be bound in part to specific binding sites located on the luminal membrane of the tight endothelial cells. Transport of peptide molecules across the BBB cannot be ruled out, but it is unlikely that endogenous peptides pass the BBB in physiologically significant amounts. In contrast, in brain regions with leaky capillaries, e.g., selected circumventricular organs including the pineal gland, neurohypophysis, and choroid plexus, the peptide fraction extracted approaches that of water. Within the circumventricular organs, the peptide molecules actually reach the cellular elements of the tissue. However, no studies definitively show that peptides reach neurons in the deeper layers of the brain. On the other hand, blood-borne peptides influence the BBB permeability by altering the transport of essential substances. The effect may be mediated by specific peptide binding sites located at the luminal membrane of the endothelium. It is possible that the effect of peptides on the BBB is necessary for proper brain function.(ABSTRACT TRUNCATED AT 250 WORDS)
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414
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Landgraf R, Land W. [Progress in pancreas transplantation with cyclosporin]. Internist (Berl) 1985; 26:557-62. [PMID: 3905677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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415
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Hill W, Landgraf R. Successful treatment of amegakaryocytic thrombocytopenic purpura with cyclosporine. N Engl J Med 1985; 312:1060-1. [PMID: 4039035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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416
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Landgraf R, Rieder G, Schmiedek P, Clados D, Bise K, von Werder K. Hormone-active intradural spinal metastasis of a prolactinoma--a case report. KLINISCHE WOCHENSCHRIFT 1985; 63:379-84. [PMID: 3999624 DOI: 10.1007/bf01731658] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A 44-year-old woman developed acute severe visual field defects and was operated on a macroprolactinoma. Since complete resection of the tumor was not possible, radiotherapy was performed and in addition to hormone replacement therapy, bromocriptine (up to 60 mg daily) was started without however complete normalization of PRL levels. Four years later PRL levels increased to 10(5) microU/ml despite continuation of dopamin agonist (mesulergin) treatment. As shown by ophthalmological examination and computer tomography there were no signs of regrowth of the pituitary tumor. At that time the patient complained of severe lumbar pain and myelography revealed a tumor mass in the spinal cord (L1-L2). Since the spinal tumor was not removable, laminectomy was performed. Histology and immunohistochemistry demonstrated a metastasis of the prolactinoma. Radiotherapy and bromocriptine in extreme doses (140 mg daily) together with an antiestrogen were not able to improve the neurological deficits (paraparesis) and to lower the PRL levels. This case of a metastasis of a prolactinoma after operation, radiotherapy, and dopamin agonist treatment stresses the importance of close surveillance of patients with prolactinomas without PRL normalization during dopamin agonist therapy and shows for the first time the possibility of ectopic PRL production due to an intradural spinal metastasis.
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417
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Landgraf R. Plasma oxytocin concentrations in man after different routes of administration of synthetic oxytocin. EXPERIMENTAL AND CLINICAL ENDOCRINOLOGY 1985; 85:245-8. [PMID: 4018162 DOI: 10.1055/s-0029-1210444] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Plasma oxytocin was determined by RIA in three male subjects under basal conditions and following administration of synthetic oxytocin. As compared to basal levels (below 10 pg/ml), plasma oxytocin was found to be elevated markedly (36 to 85 pg/ml) in response to application by nasal spray (total dose: 65 to 100 micrograms). Intramuscular injection (25 micrograms) resulted in very high oxytocin levels (360 to 480 pg/ml), whereas buccal administration (70 micrograms) was proved to be ineffective (levels below 10 pg/ml plasma). In each case, plasma vasopressin remained unchanged.
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418
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Ermisch A, Barth T, Rühle HJ, Skopková J, Hrbas P, Landgraf R. On the blood-brain barrier to peptides: accumulation of labelled vasopressin, DesGlyNH2-vasopressin and oxytocin by brain regions. ENDOCRINOLOGIA EXPERIMENTALIS 1985; 19:29-37. [PMID: 3872788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
After intracarotid injection of 125I-arginine vasopressin (AVP), 125I- or 3H-lysine vasopressin (LVP), 3H-DesGlyNH2-arginine vasopressin (DGAVP), and 125I- or 3H-oxytocin (OXT), the accumulation of radioactivity was determined in 13 to 18 brain regions and anterior pituitary in rats. Calculated extraction by tight capillary regions amounts to about 1-2% independently of the peptide doses injected (4 X 10(-4) to 5 X 10(-9) mol-1). This indicates a low but measurable extraction of labelled peptides which furthermore is nonsaturable. Among brain regions with tight capillaries, the extraction does not vary obviously. Blood-brain barrier (BBB)-free regions extract up to 30 fold more peptide than BBB-protected regions and the extraction varies considerably between individual regions. Within BBB-free regions, the peptides passed the leaky capillary endothelium, but there is no evidence for a penetration to deeper layers of the brain. It is concluded that endogenous blood-borne peptides cannot pass brain barriers in physiologically significant amounts. This does not exclude a possibility that passive transport of minute but effective amounts might occur if high pharmacological amounts of peptides are injected peripherally. But, as shown, none of the peptides studied possesses properties that favour its passage across the BBB.
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419
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Wolf G, Kiessig R, Landgraf R. Levels of vasopressin and oxytocin in neurohypophysis and plasma of the postnatally developing rat and the influence of hypothyroidism on rat fetuses. Exp Clin Endocrinol Diabetes 1984; 83:251-5. [PMID: 6540695 DOI: 10.1055/s-0029-1210337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Arginine vasopressin (AVP) and oxytocin (OXT) were measured simultaneously by radioimmunoassay in neurohypophyses of rats immediately before birth (fetal day 22) onward to day 50 of life. The neurohypophysial content of AVP exceeded that of OXT by factor 17 at fetal day 22, by 20 immediately post natum, and by 2 at day 21 of life, respectively. As compared to day 0, the content at day 21 is considerably higher (AVP 24 fold, OXT 270 fold). The poor correlation between neurohypophysial AVP and OXT content suggests the possibility of a different onto-genetic development of both neuropeptide systems. Both AVP and OXT were detected in pooled rat plasma at various postnatal stages. Hypo- and hyperthyroidism induced experimentally during gestation did not result in a significant change in neuropeptide content of fetal neural lobes.
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420
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Landgraf-Leurs MM, Brügelmann I, Kammerer S, Lorenz R, Landgraf R. Counterregulatory hormone release after human and porcine insulin in healthy subjects and patients with pituitary disorders. KLINISCHE WOCHENSCHRIFT 1984; 62:659-68. [PMID: 6381871 DOI: 10.1007/bf01716462] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Human and porcine insulin were administered intravenously to a group of healthy volunteers in two different doses (0.075 IU/kg body weight and 0.12 IU/kg body weight) and to two groups of randomly selected patients with pituitary disorders in a dose adapted to their individual glucose tolerance (0.12-0.17 IU/kg body weight for porcine and 0.15-0.18 IU/kg body weight for human insulin). The blood glucose and potassium lowering effect, the feedback regulation of endogenous insulin release, and the liberation of the counterregulatory hormones glucagon, cortisol, adrenocorticotropic hormone (ACTH), prolactin (hPRL), human growth hormone (hGH), and catecholamines were measured before and after injection of human or porcine insulin. The maximal effect, the area under the concentration-time curve, the percentage effect, and the increase above baseline for the two doses of insulin and the two types of insulin were compared. There were no significant differences in the calculated parameters between the two insulin types at the same doses except with prolactin. At 0.075 IU/kg human insulin induced significantly less prolactin release than porcine insulin. Comparing the two doses of the same insulin serum insulin levels, blood glucose, glucagon, norepinephrine, and prolactin were lower at the low dose of each insulin. In addition ACTH and epinephrine were also lower after human insulin at 0.075 IU/kg. The subjective signs of hypoglycemia were less pronounced after human insulin. It is concluded that the biological effects of human insulin are comparable to porcine insulin although prolactin release is significantly reduced after human insulin. If this difference is an indication of different receptor sensitivities for human and porcine insulin in the central nervous system and if the diminished signs of hypoglycemia are a consequence of this, then further studies are required.
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421
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Land W, Illner WD, Abendroth D, Landgraf R. Experience with 13 segmental pancreas transplants in cyclosporine-treated diabetic patients using ethibloc for duct obliteration (surgical aspects). Transplant Proc 1984; 16:729-32. [PMID: 6375040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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422
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Landgraf R, Landgraf-Leurs MM, Burg D, Kampik A, Land W. Follow-up of simultaneous kidney and pancreas transplantation in type I diabetes. Transplant Proc 1984; 16:687-91. [PMID: 6375034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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423
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Ermisch A, Rühle HJ, Neubert K, Hartrodt B, Landgraf R. On the blood-brain barrier to peptides: [3H]beta-casomorphin-5 uptake by eighteen brain regions in vivo. J Neurochem 1983; 41:1229-33. [PMID: 6619862 DOI: 10.1111/j.1471-4159.1983.tb00816.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
After intracarotid injection of [3H]beta-casomorphin-5 (beta CM5) in rats, the accumulation of radioactivity was determined in 18 brain regions and the anterior pituitary. The relative accumulation in all regions significantly exceeded that of [3H]inulin by a factor of 2.5, indicating a low but measurable brain uptake of the peptide. In blood-brain barrier-free areas, the accumulation of radioactivity was 15-fold higher than in blood-brain barrier-protected areas. The relative accumulation was not dependent on the total beta CM5 concentration in the range of 0.3-1.1 microM, and was not depressed by 400 microM L-tyrosine. We conclude that beta CM5, like other peptides, is accumulated in the blood-brain barrier-free areas to a relatively high but differing degree, whereas in the areas with a tight endothelium the accumulation is relatively low and nearly uniform. A binding to endothelial cells may contribute to the low accumulation of beta CM5, especially in blood-brain barrier-protected areas.
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424
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Landgraf-Leurs MM, Lange G, Leis D, Horn K, von Werder K, Müller OA, Landgraf R. Hormonal profile and glucose tolerance in late pregnancy and postpartum. Horm Metab Res 1983; 15:433-8. [PMID: 6357985 DOI: 10.1055/s-2007-1018748] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Oral glucose tolerance, plasma insulin and basal levels of glucagon, hGH, hPRL, hPL, TSH, T4, T3, thyroxine-binding globulin (TBG), cortisol, corticosteroid-binding globulin (CBG) and estriol were measured in 23 normal pregnant women in late gestation (31 +/- 0.4 weeks of pregnancy). Twelve of these subjects could be re-examined 14 +/- 2 weeks postpartum. Blood glucose was lower basal and after glucose load (100 g) in the pregnant group. Fasting plasma insulin and glucose-induced insulin release were higher in pregnancy. The insulinogenic index and the beta cell response were significantly greater antepartum, while peripheral insulin activity was unchanged. The insulin:glucagon ratio as well as TSH and hGH showed no significant differences between ante- and postpartum values. However, T4, T3, TBG, cortisol, CBG, estriol, hPRL and hPL were significantly higher during gestation than after delivery. T4:TBG and T3:TBG ratios were much lower antepartum, while the cortisol:CBG ratio was comparable ante- and postpartum. To our knowledge this is the first report in which such an extensive hormonal and metabolic analysis was performed in the same women ante- and postpartum. It could be shown that glucose tolerance is not worsened during pregnancy in healthy subjects. The higher gestational insulin values are discussed with respect to the various significant hormonal changes.
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425
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Landgraf R, Landgraf-Leurs MM. [Use of fixed-combination preparations of regular BHI and basal BHI (NPH) in type I diabetics]. MMW, MUNCHENER MEDIZINISCHE WOCHENSCHRIFT 1983; Suppl 1:S63-S68. [PMID: 6408437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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