PubMed

[No title available]

Ritzel RM, Bonacker M.

Rofo. 2009 Oct 27. [Epub ahead of print] German. No abstract available. PMID: 19862659 [PubMed - as supplied by publisher]

Prolonged Culture of Human Islets Induces ER Stress.

Erbel S, Reers C, Nawroth PP, Ritzel RA.

Exp Clin Endocrinol Diabetes. 2009 Oct 17. [Epub ahead of print]PMID: 19838981 [PubMed - as supplied by publisher]Related articles

Annexin A5 directly interacts with amyloidogenic proteins and reduces their toxicity.

Bedrood S, Jayasinghe S, Sieburth D, Chen M, Erbel S, Butler PC, Langen R, Ritzel RA.

Biochemistry. 2009 Nov 10;48(44):10568-76.PMID: 19810772 [PubMed - indexed for MEDLINE]Related articles

Therapeutic approaches based on beta-cell mass preservation and/or regeneration.

Ritzel RA.

Front Biosci. 2009 Jan 1;14:1835-50. Review.PMID: 19273167 [PubMed - indexed for MEDLINE]Related articles

[Invasive diagnostic procedures for insulinomas of the pancreas]

Nöldge G, Weber MA, Ritzel RA, Werner MJ, Kauczor HU, Grenacher L.

Radiologe. 2009 Mar;49(3):224-32. German. PMID: 19198794 [PubMed - indexed for MEDLINE]Related articles

Impaired islet turnover in human donor pancreata with aging.

Reers C, Erbel S, Esposito I, Schmied B, Büchler MW, Nawroth PP, Ritzel RA.

Eur J Endocrinol. 2009 Feb;160(2):185-91. Epub 2008 Nov 12.PMID: 19004984 [PubMed - indexed for MEDLINE]Related articles

Comparison of pancreas-transplanted type 1 diabetic patients with portal-venous versus systemic-venous graft drainage: impact on glucose regulatory hormones and the growth hormone/insulin-like growth factor-I axis.

Frystyk J, Ritzel RA, Maubach J, Büsing M, Lück R, Klempnauer J, Schmiegel W, Nauck MA.

J Clin Endocrinol Metab. 2008 May;93(5):1758-66. Epub 2008 Mar 4.PMID: 18319317 [PubMed - indexed for MEDLINE]Related articlesFree article

Proliferation of colo-357 pancreatic carcinoma cells and survival of patients with pancreatic carcinoma are not altered by insulin glargine.

Erbel S, Reers C, Eckstein VW, Kleeff J, Büchler MW, Nawroth PP, Ritzel RA.

Diabetes Care. 2008 Jun;31(6):1105-11. Epub 2008 Mar 3.PMID: 18316392 [PubMed - indexed for MEDLINE]Related articlesFree article

[Optic metastasis in a metastatic embryonic cell testicular cancer]

Ritzel RM, Ruf C, Schlegel HM.

Rofo. 2007 Nov;179(11):1196-7. German. No abstract available. PMID: 17948200 [PubMed - indexed for MEDLINE]Related articles

Autoantibodies in diabetes mellitus: current utility and perspectives.

Isermann B, Ritzel R, Zorn M, Schilling T, Nawroth PP.

Exp Clin Endocrinol Diabetes. 2007 Sep;115(8):483-90. Review.PMID: 17853330 [PubMed - indexed for MEDLINE]Related articles

Diagnosis and localization of insulinoma after negative laparotomy by hyperinsulinemic, hypoglycemic clamp and intra-arterial calcium stimulation.

Ritzel RA, Isermann B, Schilling T, Knaebel HP, Büchler MW, Nawroth PP.

Rev Diabet Stud. 2004 Spring;1(1):42-6. Epub 2004 May 10.PMID: 17491664 [PubMed]Related articlesFree article

[Prevention of type 2 diabetes mellitus: proven and new aspects]

Ritzel RA, Isermann B, Woerle HJ.

Dtsch Med Wochenschr. 2007 May 11;132(19):1057-61. Review. German. No abstract available. PMID: 17476638 [PubMed - indexed for MEDLINE]Related articles

[Diabetology is just at its beginning]

Nawroth P, Ritzel R.

Dtsch Med Wochenschr. 2007 May 11;132(19):1033. German. No abstract available. PMID: 17476632 [PubMed - indexed for MEDLINE]Related articles

Preserved GLP-1 effects in a diabetic patient with Cushing's disease.

Ritzel RA, Kleine N, Holst JJ, Willms B, Schmiegel W, Nauck MA.

Exp Clin Endocrinol Diabetes. 2007 Feb;115(2):146-50.PMID: 17318778 [PubMed - indexed for MEDLINE]Related articles

[Backache as main symptom of unknown primary cancer syndrome with a particularly severe course]

Ritzel RM, Ruf C, Schlegel HM.

Rofo. 2007 Feb;179(2):173-5. Epub 2007 Jan 2. German. No abstract available. PMID: 17199183 [PubMed - indexed for MEDLINE]Related articles

Human islet amyloid polypeptide oligomers disrupt cell coupling, induce apoptosis, and impair insulin secretion in isolated human islets.

Ritzel RA, Meier JJ, Lin CY, Veldhuis JD, Butler PC.

Diabetes. 2007 Jan;56(1):65-71.PMID: 17192466 [PubMed - indexed for MEDLINE]Related articlesFree article

[Primary lymphoma of the liver--a difficult differential diagnosis also with MRI]

Ritzel RM, Bartelheimer M, Schlegel HM.

Rofo. 2006 Nov;178(11):1141-2. Epub 2006 Aug 7. German. No abstract available. PMID: 16894501 [PubMed - indexed for MEDLINE]Related articles

Relationship between beta-cell mass and fasting blood glucose concentration in humans.

Ritzel RA, Butler AE, Rizza RA, Veldhuis JD, Butler PC.

Diabetes Care. 2006 Mar;29(3):717-8. No abstract available. PMID: 16505537 [PubMed - indexed for MEDLINE]Related articlesFree article

Pancreatic beta-cells secrete insulin in fast- and slow-release forms.

Michael DJ, Ritzel RA, Haataja L, Chow RH.

Diabetes. 2006 Mar;55(3):600-7.PMID: 16505221 [PubMed - indexed for MEDLINE]Related articlesFree article

Expression of two insm1-like genes in the developing zebrafish nervous system.

Lukowski CM, Ritzel RG, Waskiewicz AJ.

Gene Expr Patterns. 2006 Oct;6(7):711-8. Epub 2006 Feb 17.PMID: 16487754 [PubMed - indexed for MEDLINE]Related articles

Increased vulnerability of newly forming beta cells to cytokine-induced cell death.

Meier JJ, Ritzel RA, Maedler K, Gurlo T, Butler PC.

Diabetologia. 2006 Jan;49(1):83-9. Epub 2005 Dec 2.PMID: 16323002 [PubMed - indexed for MEDLINE]Related articles

The mass, but not the frequency, of insulin secretory bursts in isolated human islets is entrained by oscillatory glucose exposure.

Ritzel RA, Veldhuis JD, Butler PC.

Am J Physiol Endocrinol Metab. 2006 Apr;290(4):E750-6. Epub 2005 Nov 8.PMID: 16278244 [PubMed - indexed for MEDLINE]Related articlesFree article

alpha-Glucosidase inhibition (acarbose) fails to enhance secretion of glucagon-like peptide 1 (7-36 amide) and to delay gastric emptying in Type 2 diabetic patients.

Hücking K, Kostic Z, Pox C, Ritzel R, Holst JJ, Schmiegel W, Nauck MA.

Diabet Med. 2005 Apr;22(4):470-6.PMID: 15787675 [PubMed - indexed for MEDLINE]Related articles

[AGE-RAGE: a hypothesis or a mechanism?]

Isermann B, Bierhaus A, Humpert PM, Rudofsky G, Chavakis T, Ritzel R, Wendt T, Morcos M, Kasperk C, Hamann A, Nawroth PP.

Herz. 2004 Aug;29(5):504-9. Review. German. PMID: 15340736 [PubMed - indexed for MEDLINE]Related articles

Induction of beta-cell rest by a Kir6.2/SUR1-selective K(ATP)-channel opener preserves beta-cell insulin stores and insulin secretion in human islets cultured at high (11 mM) glucose.

Ritzel RA, Hansen JB, Veldhuis JD, Butler PC.

J Clin Endocrinol Metab. 2004 Feb;89(2):795-805.PMID: 14764798 [PubMed - indexed for MEDLINE]Related articlesFree article

Absence of a memory effect for the insulinotropic action of glucagon-like peptide 1 (GLP-1) in healthy volunteers.

Meier S, Hücking K, Ritzel R, Holst JJ, Schmiegel WH, Nauck MA.

Horm Metab Res. 2003 Sep;35(9):551-6.PMID: 14517773 [PubMed - indexed for MEDLINE]Related articles

Replication increases beta-cell vulnerability to human islet amyloid polypeptide-induced apoptosis.

Ritzel RA, Butler PC.

Diabetes. 2003 Jul;52(7):1701-8.PMID: 12829636 [PubMed - indexed for MEDLINE]Related articlesFree article

Glucose stimulates pulsatile insulin secretion from human pancreatic islets by increasing secretory burst mass: dose-response relationships.

Ritzel RA, Veldhuis JD, Butler PC.

J Clin Endocrinol Metab. 2003 Feb;88(2):742-7.PMID: 12574208 [PubMed - indexed for MEDLINE]Related articlesFree article

Combined pancreas and kidney transplantation in a lean type 2 diabetic patient. Effects on insulin secretion and sensitivity.

Pox C, Ritzel R, Büsing M, Meier JJ, Klempnauer J, Schmiegel W, Nauck MA.

Exp Clin Endocrinol Diabetes. 2002 Nov;110(8):420-4.PMID: 12518254 [PubMed - indexed for MEDLINE]Related articles

Beta-cell deficit and increased beta-cell apoptosis in humans with type 2 diabetes.

Butler AE, Janson J, Bonner-Weir S, Ritzel R, Rizza RA, Butler PC.

Diabetes. 2003 Jan;52(1):102-10.PMID: 12502499 [PubMed - indexed for MEDLINE]Related articlesFree article

Effects of glucagon-like peptide 1 on counterregulatory hormone responses, cognitive functions, and insulin secretion during hyperinsulinemic, stepped hypoglycemic clamp experiments in healthy volunteers.

Nauck MA, Heimesaat MM, Behle K, Holst JJ, Nauck MS, Ritzel R, Hüfner M, Schmiegel WH.

J Clin Endocrinol Metab. 2002 Mar;87(3):1239-46.PMID: 11889194 [PubMed - indexed for MEDLINE]Related articlesFree article

Pulsatile insulin secretion by human pancreatic islets.

Song SH, Kjems L, Ritzel R, McIntyre SM, Johnson ML, Veldhuis JD, Butler PC.

J Clin Endocrinol Metab. 2002 Jan;87(1):213-21.PMID: 11788649 [PubMed - indexed for MEDLINE]Related articlesFree article

Glucagon-like peptide 1 increases secretory burst mass of pulsatile insulin secretion in patients with type 2 diabetes and impaired glucose tolerance.

Ritzel R, Schulte M, Pørksen N, Nauck MS, Holst JJ, Juhl C, März W, Schmitz O, Schmiegel WH, Nauck MA.

Diabetes. 2001 Apr;50(4):776-84.PMID: 11289042 [PubMed - indexed for MEDLINE]Related articlesFree article

Molecular identification and characterization of novel human and mouse concentrative Na+-nucleoside cotransporter proteins (hCNT3 and mCNT3) broadly selective for purine and pyrimidine nucleosides (system cib).

Ritzel MW, Ng AM, Yao SY, Graham K, Loewen SK, Smith KM, Ritzel RG, Mowles DA, Carpenter P, Chen XZ, Karpinski E, Hyde RJ, Baldwin SA, Cass CE, Young JD.

J Biol Chem. 2001 Jan 26;276(4):2914-27. Epub 2000 Oct 13.PMID: 11032837 [PubMed - indexed for MEDLINE]Related articlesFree article

Influence of glucagon-like peptide 1 on fasting glycemia in type 2 diabetic patients treated with insulin after sulfonylurea secondary failure.

Nauck MA, Sauerwald A, Ritzel R, Holst JJ, Schmiegel W.

Diabetes Care. 1998 Nov;21(11):1925-31.PMID: 9802745 [PubMed - indexed for MEDLINE]Related articlesFree article

A fluid-filled condom causing intestinal obstruction: nonsurgical therapy of an ileus by ultrasound-guided transabdominal tapping.

Teschendorf C, Ritzel R, Nauck M.

Z Gastroenterol. 1998 Jun;36(6):515-8.PMID: 9675837 [PubMed - indexed for MEDLINE]Related articles

Role of the negative charges in the cytosolic domain of TOM22 in the import of precursor proteins into mitochondria.

Nargang FE, Rapaport D, Ritzel RG, Neupert W, Lill R.

Mol Cell Biol. 1998 Jun;18(6):3173-81.PMID: 9584158 [PubMed - indexed for MEDLINE]Related articlesFree article

Prolonged and enhanced secretion of glucagon-like peptide 1 (7-36 amide) after oral sucrose due to alpha-glucosidase inhibition (acarbose) in Type 2 diabetic patients.

Seifarth C, Bergmann J, Holst JJ, Ritzel R, Schmiegel W, Nauck MA.

Diabet Med. 1998 Jun;15(6):485-91.PMID: 9632123 [PubMed - indexed for MEDLINE]Related articles

Topical reversion at the HIS1 locus of Saccharomyces cerevisiae. A tale of three mutants.

von Borstel RC, Savage EA, Wang Q, Hennig UG, Ritzel RG, Lee GS, Hamilton MD, Chrenek MA, Tomaszewski RW, Higgins JA, Tenove CJ, Liviero L, Hastings PJ, Korch CT, Steinberg CM.

Genetics. 1998 Apr;148(4):1647-54.PMID: 9560384 [PubMed - indexed for MEDLINE]Related articlesFree article

Glucagon-like peptide 1 inhibition of gastric emptying outweighs its insulinotropic effects in healthy humans.

Nauck MA, Niedereichholz U, Ettler R, Holst JJ, Orskov C, Ritzel R, Schmiegel WH.

Am J Physiol. 1997 Nov;273(5 Pt 1):E981-8.PMID: 9374685 [PubMed - indexed for MEDLINE]Related articlesFree article

The Neurospora crassa cya-5 nuclear gene encodes a protein with a region of homology to the Saccharomyces cerevisiae PET309 protein and is required in a post-transcriptional step for the expression of the mitochondrially encoded COXI protein.

Coffin JW, Dhillon R, Ritzel RG, Nargang FE.

Curr Genet. 1997 Oct;32(4):273-80.PMID: 9342407 [PubMed - indexed for MEDLINE]Related articles

Cloning and analysis of the alternative oxidase gene of Neurospora crassa.

Li Q, Ritzel RG, McLean LL, McIntosh L, Ko T, Bertrand H, Nargang FE.

Genetics. 1996 Jan;142(1):129-40.PMID: 8770590 [PubMed - indexed for MEDLINE]Related articlesFree article

Pharmacokinetic, insulinotropic, and glucagonostatic properties of GLP-1 [7-36 amide] after subcutaneous injection in healthy volunteers. Dose-response-relationships.

Ritzel R, Orskov C, Holst JJ, Nauck MA.

Diabetologia. 1995 Jun;38(6):720-5.PMID: 7672496 [PubMed - indexed for MEDLINE]Related articles

'Sheltered disruption' of Neurospora crassa MOM22, an essential component of the mitochondrial protein import complex.

Nargang FE, Künkele KP, Mayer A, Ritzel RG, Neupert W, Lill R.

EMBO J. 1995 Mar 15;14(6):1099-108.PMID: 7720701 [PubMed - indexed for MEDLINE]Related articlesFree article

The mutator mut7-1 of Saccharomyces cerevisiae.

von Borstel RC, Ord RW, Stewart SP, Ritzel RG, Lee GS, Hennig UG, Savage EA.

Mutat Res. 1993 Sep;289(1):97-106.PMID: 7689169 [PubMed - indexed for MEDLINE]Related articles

Sequence conservation in avian CR1: an interspersed repetitive DNA family evolving under functional constraints.

Chen ZQ, Ritzel RG, Lin CC, Hodgetts RB.

Proc Natl Acad Sci U S A. 1991 Jul 1;88(13):5814-8.PMID: 1829530 [PubMed - indexed for MEDLINE]Related articlesFree article

The phosphofructokinase genes of yeast evolved from two duplication events.

Heinisch J, Ritzel RG, von Borstel RC, Aguilera A, Rodicio R, Zimmermann FK.

Gene. 1989 May 30;78(2):309-21.PMID: 2528496 [PubMed - indexed for MEDLINE]Related articles

The base-alteration spectrum of spontaneous and ultraviolet radiation-induced forward mutations in the URA3 locus of Saccharomyces cerevisiae.

Lee GS, Savage EA, Ritzel RG, von Borstel RC.

Mol Gen Genet. 1988 Nov;214(3):396-404.PMID: 3063945 [PubMed - indexed for MEDLINE]Related articles

Translation of lymphocyte mRNA into biologically-active Interleukin 2 in oocytes.

Bleackley RC, Caplan B, Havele C, Ritzel RG, Mosmann TR, Farrar JJ, Paetkau V.

J Immunol. 1981 Dec;127(6):2432-5.PMID: 6975322 [PubMed - indexed for MEDLINE]Related articles

[Experience with Delta-Tomanol, a new antirheumatic combination preparation]

Ritzel R, Vetter GW.

Dtsch Med J. 1968 Nov 20;19(22):800-2. German. No abstract available. PMID: 5306009 [PubMed - indexed for MEDLINE]Related articles