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Beta cell

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330:, also known as insulin-dependent diabetes, is believed to be caused by an auto-immune mediated destruction of the insulin-producing beta cells in the body. The process of beta-cell destruction begins with insulitis activating antigen-presenting cells (APCs). APCs then trigger activation of CD4+ helper-T cells and chemokines/cytokines release. Then, the cytokines activate CD8+ cytotoxic–T cells which leads to beta-cell destruction. The destruction of these cells reduces the body's ability to respond to glucose levels in the body, therefore making it nearly impossible to properly regulate glucose and glucagon levels in the bloodstream. The body destroys 70–80% of beta cells, leaving only 20–30% of functioning cells. This can cause the patient to experience hyperglycemia, which leads to other adverse short-term and long-term conditions. The symptoms of diabetes can potentially be controlled with methods such as regular doses of insulin and sustaining a proper diet. However, these methods can be tedious and cumbersome to continuously perform on a daily basis. 451:
concluded. While these studies have conclusive results in mice, beta cells in human subjects may not possess this same level of versatility. Investigation of beta cells following acute onset of Type 1 diabetes has shown little to no proliferation of newly synthesized beta cells, suggesting that human beta cells might not be as versatile as rat beta cells, but there is actually no comparison that can be made here because healthy (non-diabetic) rats were used to prove that beta cells can proliferate after intentional destruction of beta cells, while diseased (type-1 diabetic) humans were used in the study which was attempted to use as evidence against beta cells regenerating.
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the differentiation of stem cells into beta cells: the BMP4 pathway and the kinase C. Targeted manipulation of these two pathways has shown that it is possible to induce beta cell differentiation from stem cells. These variations of artificial beta cells have shown greater levels of success in replicating the functionality of natural beta cells, although the replication has not been perfectly re-created yet.
165:, particularly insulin and amylin. Both hormones work to keep blood glucose levels within a narrow, healthy range by different mechanisms. Insulin facilitates the uptake of glucose by cells, allowing them to use it for energy or store it for future use. Amylin helps regulate the rate at which glucose enters the bloodstream after a meal, slowing down the absorption of nutrients by inhibit gastric emptying. 354:
remain within their normal range due to the decreased efficacy of insulin signaling. However, the beta cells can become overworked and exhausted from being overstimulated, leading to a 50% reduction in function along with a 40% decrease in beta-cell volume. At this point, not enough insulin can be produced and secreted to keep blood glucose levels within their normal range, causing overt type 2 diabetes.
341:, also known as non insulin dependent diabetes and as chronic hyperglycemia, is caused primarily by genetics and the development of metabolic syndrome. The beta cells can still secrete insulin but the body has developed a resistance and its response to insulin has declined. It is believed to be due to the decline of specific receptors on the surface of the 185:(RER). Inside the RER, the signal peptide is cleaved to form proinsulin. Then, folding of proinsulin occurs forming three disulfide bonds. Subsequent to protein folding, proinsulin is transported to the Golgi apparatus and enters immature insulin granules where proinsulin is cleaved to form insulin and 231:
are embedded in the plasma membrane of beta cells. These ATP-sensitive potassium ion channels are normally open and the calcium ion channels are normally closed. Potassium ions diffuse out of the cell, down their concentration gradient, making the inside of the cell more negative with respect to the
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Sulfonylureas are insulin secretagogues that act by closing the ATP-sensitive potassium channels, thereby causing insulin release. These drugs are known to cause hypoglycemia and can lead to beta-cell failure due to overstimulation. Second-generation versions of sulfonylureas are shorter acting and
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which lose their ability to respond to insulin that circulates in the blood. In an effort to secrete enough insulin to overcome the increasing insulin resistance, the beta cells increase their function, size and number. Increased insulin secretion leads to hyperinsulinemia, but blood glucose levels
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In order to successfully re-create functional insulin producing beta cells, studies have shown that manipulating cell-signal pathways in early stem cell development will lead to those stem cells differentiating into viable beta cells. Two key signal pathways have been shown to play a vital role in
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In beta cells, insulin release is stimulated primarily by glucose present in the blood. As circulating glucose levels rise such as after ingesting a meal, insulin is secreted in a dose-dependent fashion. This system of release is commonly referred to as glucose-stimulated insulin secretion (GSIS).
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It appears that much work has to be done in the field of regenerating beta cells. Just as in the discovery of creating insulin through the use of recombinant DNA, the ability to artificially create stem cells that would differentiate into beta cells would prove to be an invaluable resource to
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Research has shown that beta cells can be differentiated from human pancreas progenitor cells. These differentiated beta cells, however, often lack much of the structure and markers that beta cells need to perform their necessary functions. Examples of the anomalies that arise from beta cells
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The ATP-sensitive potassium ion channels close when this ratio rises. This means that potassium ions can no longer diffuse out of the cell. As a result, the potential difference across the membrane becomes more positive (as potassium ions accumulate inside the cell). This change in potential
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in some animal models. Research in mice has shown that beta cells can often regenerate to the original quantity number after the beta cells have undergone some sort of stress test, such as the intentional destruction of the beta cells in the mice subject or once the auto-immune response has
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Research focused on non insulin dependent diabetes encompasses many areas of interest. Degeneration of the beta cell as diabetes progresses has been a broadly reviewed topic. Another topic of interest for beta-cell physiologists is the mechanism of insulin pulsatility which has been well
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In addition to the triggering pathway, the amplifying pathway can cause increased insulin secretion without a further increase in intracellular calcium levels. The amplifying pathway is modulated by byproducts of glucose metabolism along with various intracellular signaling pathways.
309:, also known as islet amyloid polypeptide (IAPP). The function of amylin is to slow the rate of glucose entering the bloodstream. Amylin can be described as a synergistic partner to insulin, where insulin regulates long term food intake and amylin regulates short term food intake. 318:
Beta cells have significant clinical relevance as their proper function is essential for glucose regulation, and dysfunction is a key factor in the development and progression of diabetes and its associated complications. Here are some key clinical significances of beta cells:
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For instance, transcriptomics have allowed researchers to comprehensively analyze gene transcription in beta-cells to look for genes linked to diabetes. A more common mechanism of analyzing cellular function is calcium imaging. Fluorescent dyes bind to calcium and allow
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Lam, Carol & Jacobson, Daniel & Rankin, Matthew & Cox, Aaron & Kushner, Jake. (2017). β Cells Persist in T1D Pancreata Without Evidence of Ongoing β-Cell Turnover or Neogenesis. The Journal of clinical endocrinology and metabolism. 102.
430:, which are specifically toxic to beta cells. Mouse and rat models of diabetes also exist including ob/ob and db/db mice which are a type 2 diabetes model, and non-obese diabetic mice (NOD) which are a model for type 1 diabetes. 439:
differentiated from progenitor cells include a failure to react to environments with high glucose concentrations, an inability to produce necessary beta cell markers, and abnormal expression of glucagon along with insulin.
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Beta cells are the only site of insulin synthesis in mammals. As glucose stimulates insulin secretion, it simultaneously increases proinsulin biosynthesis through translational control and enhanced gene transcription.
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investigated. Many genome studies have been completed and are advancing the knowledge of beta-cell function exponentially. Indeed, the area of beta-cell research is very active yet many mysteries remain.
1994:"Management of hyperglycaemia in type 2 diabetes: a patient-centered approach. Position statement of the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)" 389:
GLP-1 receptor agonists stimulate insulin secretion by simulating activation of the body's endogenous incretin system. The incretin system acts as an insulin secretion amplifying pathway.
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Rudenski AS, Matthews DR, Levy JC, Turner RC (September 1991). "Understanding "insulin resistance": both glucose resistance and insulin resistance are required to model human diabetes".
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is first transcribed into mRNA and translated into preproinsulin. After translation, the preproinsulin precursor contains an N-terminal signal peptide that allows translocation into the
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Moore CX, Cooper GJ (August 1991). "Co-secretion of amylin and insulin from cultured islet beta-cells: modulation by nutrient secretagogues, islet hormones and hypoglycemic agents".
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patients with Type 1 diabetes. An unlimited amount of beta cells produced artificially could potentially provide therapy to many of the patients who are affected by Type 1 diabetes.
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Many researchers around the world are investigating the pathogenesis of diabetes and beta-cell failure. Tools used to study beta-cell function are expanding rapidly with technology.
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Hoogwerf BJ, Goetz FC (January 1983). "Urinary C-peptide: a simple measure of integrated insulin production with emphasis on the effects of body size, diet, and corticosteroids".
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Ciechanowski PS, Katon WJ, Russo JE, Hirsch IB (July–August 2003). "The relationship of depressive symptoms to symptom reporting, self-care and glucose control in diabetes".
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Human pancreatic islet by immunostaining. Nuclei of cells are shown in blue (DAPI). Beta cells are shown in green (Insulin), Delta cells are shown in white (Somatostatin).
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Wang Z, Gleichmann H (January 1998). "GLUT2 in pancreatic islets: crucial target molecule in diabetes induced with multiple low doses of streptozotocin in mice".
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Ido Y, Vindigni A, Chang K, Stramm L, Chance R, Heath WF, et al. (July 1997). "Prevention of vascular and neural dysfunction in diabetic rats by C-peptide".
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Yu R, Nissen NN, Hendifar A, Tang L, Song YL, Chen YJ, Fan X (January 2017). "A Clinicopathological Study of Malignant Insulinoma in a Contemporary Series".
1750:"Modestly increased beta cell apoptosis but no increased beta cell replication in recent-onset type 1 diabetic patients who died of diabetic ketoacidosis" 504: 2606: 1829:"U.K. prospective diabetes study 16. Overview of 6 years' therapy of type II diabetes: a progressive disease. U.K. Prospective Diabetes Study Group". 275:, which allows calcium ions from outside the cell to diffuse in down their concentration gradient. When the calcium ions enter the cell, they cause 2455:
Bertram R, Sherman A, Satin LS (October 2007). "Metabolic and electrical oscillations: partners in controlling pulsatile insulin secretion".
189:. After maturation, these secretory vesicles hold insulin, C-peptide, and amylin until calcium triggers exocytosis of the granule contents. 392:
DPP-4 inhibitors block DPP-4 activity which increases postprandial incretin hormone concentration, therefore increasing insulin secretion.
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Andrali SS, Sampley ML, Vanderford NL, Ozcan S (October 2008). "Glucose regulation of insulin gene expression in pancreatic beta-cells".
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Through translational processing, insulin is encoded as a 110 amino acid precursor but is secreted as a 51 amino acid protein.
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Westermark P, Andersson A, Westermark GT (July 2011). "Islet amyloid polypeptide, islet amyloid, and diabetes mellitus".
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imaging of calcium activity which correlates directly with insulin release. A final tool used in beta-cell research are
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Afelik S, Rovira M (April 2017). "Pancreatic β-cell regeneration: Facultative or dedicated progenitors?".
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closure, and the opening of voltage gated calcium channels causing insulin granule fusion and exocytosis.
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Segerstolpe Å, Palasantza A, Eliasson P, Andersson EM, Andréasson AC, Sun X, et al. (October 2016).
2400:"Glucose modulates [Ca2+]i oscillations in pancreatic islets via ionic and glycolytic mechanisms" 2788: 369:, but may be medically significant and even life-threatening due to recurrent and prolonged attacks of 2119:
Danilova IG, Sarapultsev PA, Medvedeva SU, Gette IF, Bulavintceva TS, Sarapultsev AP (February 2015).
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When the glucose concentration outside the cell is high, glucose molecules move into the cell by
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Inzucchi SE, Bergenstal RM, Buse JB, Diamant M, Ferrannini E, Nauck M, et al. (June 2012).
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Nunemaker CS, Bertram R, Sherman A, Tsaneva-Atanasova K, Daniel CR, Satin LS (September 2006).
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De Vos A, Heimberg H, Quartier E, Huypens P, Bouwens L, Pipeleers D, Schuit F (November 1995).
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containing insulin to move to, and fuse with, the cell surface membrane, releasing insulin by
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The function of beta cells is primarily centered around the synthesis and secretion of
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Santulli G, Pagano G, Sardu C, Xie W, Reiken S, D'Ascia SL, et al. (May 2015).
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Many drugs to combat diabetes are aimed at modifying the function of the beta cell.
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is a rare tumor derived from the neoplasia of beta cells. Insulinomas are usually
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Butler AE, Galasso R, Meier JJ, Basu R, Rizza RA, Butler PC (November 2007).
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outside (as potassium ions carry a positive charge). At rest, this creates a
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Studies have shown that it is possible to regenerate beta cells
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levels. Problems with beta cells can lead to disorders such as
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The triggering pathway of glucose-stimulated insulin secretion
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experiments. Diabetes mellitus can be experimentally induced
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There are four key pieces to the triggering pathway of GSIS:
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American Journal of Physiology. Endocrinology and Metabolism
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of Langerhans responsible for the production and release of
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levels and above. Metabolism of the glucose produces
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The Journal of Clinical Endocrinology and Metabolism
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402:Experimental techniques 291:Other hormones secreted 1216:10.1098/rstb.2005.1762 495:Pancreatic development 205: 116: 2388:10.1210/jc.2016-3806. 2357:10.1089/scd.2011.0665 2178:King AJ (June 2012). 1726:10.1007/s001250100021 868:10.1210/en.2017-03120 817:Physiological Reviews 774:Wilcox G (May 2005). 314:Clinical significance 271:difference opens the 241:facilitated diffusion 203: 114: 2987:Organ of Zuckerkandl 2977:Enteroendocrine cell 2307:10.1155/2016/6940283 1551:10.1210/jcem-56-1-60 731:Molecular Metabolism 608:Molecular Metabolism 500:Islets of Langerhans 234:potential difference 2766:Parafollicular cell 2416:2006BpJ....91.2082N 2404:Biophysical Journal 1363:1989BpJ....56..229K 1351:Biophysical Journal 1210:(1464): 2211–2225. 133:located within the 2910:Islets of pancreas 2684:Corticotropic cell 1421:10.2147/PGPM.S6969 1172:10.1042/bst0180109 913:10.1042/BJ20081029 206: 126:) are specialized 117: 76:H3.04.02.0.00026 3012: 3011: 2852: 2851: 2776:Parathyroid gland 2747: 2746: 2689:Gonadotropic cell 2662:Somatotropic cell 2502:(4): 385–394.e3. 2351:(14): 2642–2655. 2288:Mahla RS (2016). 2125:Anatomical Record 1760:(11): 2323–2331. 1719:(12): 2115–2133. 1510:(5325): 563–566. 1265:10.1172/JCI118308 1020:10.1111/jdi.12094 301:diabetes mellitus 218: 196:Insulin secretion 169:Insulin synthesis 135:pancreatic islets 109: 108: 104: 3032: 2961:Corpora arenacea 2826:Zona reticularis 2821:Zona fasciculata 2816:Zona glomerulosa 2804: 2803: 2701:Chromophobe cell 2694:Thyrotropic cell 2630: 2629: 2617:endocrine system 2609: 2602: 2595: 2586: 2585: 2579: 2578: 2568: 2536: 2530: 2529: 2519: 2487: 2481: 2480: 2463:(4): E890–E900. 2452: 2446: 2445: 2435: 2410:(6): 2082–2096. 2395: 2389: 2385: 2379: 2378: 2368: 2336: 2330: 2329: 2319: 2309: 2285: 2270: 2269: 2233: 2218: 2217: 2207: 2175: 2169: 2168: 2150: 2140: 2138:10.1002/ar.23052 2116: 2110: 2109: 2081: 2075: 2074: 2064: 2054: 2030: 2024: 2023: 2013: 2004:(6): 1577–1596. 1989: 1974: 1973: 1963: 1939: 1933: 1932: 1896: 1890: 1889: 1861: 1855: 1854: 1826: 1820: 1819: 1791: 1780: 1779: 1769: 1745: 1739: 1738: 1728: 1704: 1698: 1697: 1687: 1655: 1649: 1648: 1638: 1628: 1604: 1598: 1597: 1569: 1563: 1562: 1534: 1528: 1527: 1499: 1493: 1492: 1482: 1450: 1444: 1443: 1433: 1423: 1399: 1393: 1392: 1382: 1342: 1336: 1335: 1325: 1314:10.1172/JCI79273 1308:(5): 1968–1978. 1293: 1287: 1286: 1276: 1259:(5): 2489–2495. 1244: 1238: 1237: 1227: 1195: 1184: 1183: 1155: 1146: 1145: 1135: 1103: 1094: 1093: 1083: 1051: 1042: 1041: 1031: 999: 993: 992: 982: 950: 925: 924: 896: 890: 889: 879: 847: 841: 840: 812: 806: 805: 795: 771: 765: 764: 754: 722: 691: 690: 680: 663:(6): 1160–1171. 648: 642: 641: 631: 599: 580: 579: 561: 551: 527: 216: 101:edit on Wikidata 98: 36:Pancreatic islet 19: 18: 3040: 3039: 3035: 3034: 3033: 3031: 3030: 3029: 3015: 3014: 3013: 3008: 2965: 2942: 2904: 2848: 2844:Chromaffin cell 2830: 2793: 2770: 2761:Follicular cell 2743: 2724:Median eminence 2705: 2642:Pars intermedia 2625:Pituitary gland 2619: 2615:Anatomy of the 2613: 2583: 2582: 2545:Cell Metabolism 2537: 2533: 2488: 2484: 2453: 2449: 2396: 2392: 2386: 2382: 2337: 2333: 2286: 2273: 2234: 2221: 2176: 2172: 2117: 2113: 2082: 2078: 2031: 2027: 1990: 1977: 1940: 1936: 1897: 1893: 1862: 1858: 1828: 1827: 1823: 1792: 1783: 1746: 1742: 1705: 1701: 1656: 1652: 1605: 1601: 1570: 1566: 1535: 1531: 1500: 1496: 1451: 1447: 1400: 1396: 1343: 1339: 1294: 1290: 1245: 1241: 1196: 1187: 1156: 1149: 1104: 1097: 1052: 1045: 1000: 996: 951: 928: 897: 893: 848: 844: 813: 809: 772: 768: 723: 694: 649: 645: 600: 583: 542:(1): e1024405. 528: 524: 519: 514: 470: 461: 459:Type 2 diabetes 436: 434:Type 1 diabetes 404: 399: 379: 360: 339:Type 2 diabetes 336: 334:Type 2 diabetes 325: 323:Type 1 diabetes 316: 293: 198: 171: 159: 105: 17: 12: 11: 5: 3038: 3028: 3027: 3010: 3009: 3007: 3006: 3001: 2996: 2991: 2990: 2989: 2979: 2973: 2971: 2967: 2966: 2964: 2963: 2958: 2952: 2950: 2944: 2943: 2941: 2940: 2935: 2930: 2925: 2920: 2914: 2912: 2906: 2905: 2903: 2902: 2901: 2900: 2895: 2893:Granulosa cell 2890: 2880: 2879: 2878: 2873: 2862: 2860: 2854: 2853: 2850: 2849: 2847: 2846: 2840: 2838: 2832: 2831: 2829: 2828: 2823: 2818: 2812: 2810: 2801: 2795: 2794: 2792: 2791: 2786: 2780: 2778: 2772: 2771: 2769: 2768: 2763: 2757: 2755: 2749: 2748: 2745: 2744: 2742: 2741: 2739:Herring bodies 2736: 2731: 2726: 2721: 2715: 2713: 2707: 2706: 2704: 2703: 2698: 2697: 2696: 2691: 2686: 2676: 2675: 2674: 2669: 2667:Prolactin cell 2664: 2657:Acidophil cell 2654: 2649: 2647:Pars tuberalis 2644: 2638: 2636: 2627: 2621: 2620: 2612: 2611: 2604: 2597: 2589: 2581: 2580: 2551:(4): 593–607. 2531: 2482: 2447: 2390: 2380: 2331: 2300:(7): 6940283. 2271: 2219: 2190:(3): 877–894. 2170: 2131:(2): 396–407. 2111: 2076: 2025: 1975: 1954:(6): 386–399. 1934: 1891: 1872:(9): 908–917. 1856: 1821: 1802:(4): 246–252. 1781: 1740: 1699: 1670:(3): 183–193. 1650: 1599: 1564: 1529: 1494: 1445: 1394: 1357:(2): 229–242. 1337: 1288: 1239: 1185: 1166:(1): 109–111. 1147: 1118:(6): 481–490. 1095: 1043: 1014:(6): 511–516. 994: 926: 891: 862:(2): 895–906. 842: 823:(3): 795–826. 807: 766: 737:(9): 958–973. 692: 643: 614:(9): 943–957. 581: 521: 520: 518: 515: 513: 512: 507: 502: 497: 492: 487: 482: 477: 471: 469: 466: 460: 457: 435: 432: 424:streptozotocin 403: 400: 398: 395: 394: 393: 390: 387: 378: 375: 359: 356: 335: 332: 324: 321: 315: 312: 311: 310: 304: 292: 289: 197: 194: 170: 167: 158: 155: 107: 106: 97: 91: 90: 85: 79: 78: 73: 67: 66: 61: 55: 54: 50: 49: 43: 39: 38: 33: 29: 28: 24: 23: 15: 9: 6: 4: 3: 2: 3037: 3026: 3023: 3022: 3020: 3005: 3002: 3000: 2997: 2995: 2992: 2988: 2985: 2984: 2983: 2980: 2978: 2975: 2974: 2972: 2968: 2962: 2959: 2957: 2954: 2953: 2951: 2949: 2945: 2939: 2936: 2934: 2931: 2929: 2926: 2924: 2921: 2919: 2916: 2915: 2913: 2911: 2907: 2899: 2898:Corpus luteum 2896: 2894: 2891: 2889: 2888:Theca interna 2886: 2885: 2884: 2881: 2877: 2874: 2872: 2869: 2868: 2867: 2864: 2863: 2861: 2859: 2855: 2845: 2842: 2841: 2839: 2837: 2833: 2827: 2824: 2822: 2819: 2817: 2814: 2813: 2811: 2809: 2805: 2802: 2800: 2799:Adrenal gland 2796: 2790: 2787: 2785: 2782: 2781: 2779: 2777: 2773: 2767: 2764: 2762: 2759: 2758: 2756: 2754: 2750: 2740: 2737: 2735: 2732: 2730: 2727: 2725: 2722: 2720: 2717: 2716: 2714: 2712: 2708: 2702: 2699: 2695: 2692: 2690: 2687: 2685: 2682: 2681: 2680: 2679:Basophil cell 2677: 2673: 2670: 2668: 2665: 2663: 2660: 2659: 2658: 2655: 2653: 2652:Pars distalis 2650: 2648: 2645: 2643: 2640: 2639: 2637: 2635: 2631: 2628: 2626: 2622: 2618: 2610: 2605: 2603: 2598: 2596: 2591: 2590: 2587: 2576: 2572: 2567: 2562: 2558: 2554: 2550: 2546: 2542: 2535: 2527: 2523: 2518: 2513: 2509: 2505: 2501: 2497: 2493: 2486: 2478: 2474: 2470: 2466: 2462: 2458: 2451: 2443: 2439: 2434: 2429: 2425: 2421: 2417: 2413: 2409: 2405: 2401: 2394: 2384: 2376: 2372: 2367: 2362: 2358: 2354: 2350: 2346: 2342: 2335: 2327: 2323: 2318: 2313: 2308: 2303: 2299: 2295: 2291: 2284: 2282: 2280: 2278: 2276: 2267: 2263: 2259: 2255: 2251: 2247: 2243: 2239: 2232: 2230: 2228: 2226: 2224: 2215: 2211: 2206: 2201: 2197: 2193: 2189: 2185: 2181: 2174: 2166: 2162: 2158: 2154: 2149: 2144: 2139: 2134: 2130: 2126: 2122: 2115: 2107: 2103: 2099: 2095: 2091: 2087: 2080: 2072: 2068: 2063: 2058: 2053: 2048: 2044: 2040: 2036: 2029: 2021: 2017: 2012: 2007: 2003: 1999: 1995: 1988: 1986: 1984: 1982: 1980: 1971: 1967: 1962: 1957: 1953: 1949: 1945: 1938: 1930: 1926: 1922: 1918: 1914: 1910: 1906: 1902: 1895: 1887: 1883: 1879: 1875: 1871: 1867: 1860: 1852: 1848: 1844: 1840: 1836: 1832: 1825: 1817: 1813: 1809: 1805: 1801: 1797: 1790: 1788: 1786: 1777: 1773: 1768: 1763: 1759: 1755: 1751: 1744: 1736: 1732: 1727: 1722: 1718: 1714: 1710: 1703: 1695: 1691: 1686: 1681: 1677: 1673: 1669: 1665: 1661: 1654: 1646: 1642: 1637: 1632: 1627: 1622: 1618: 1614: 1610: 1603: 1595: 1591: 1587: 1583: 1579: 1575: 1568: 1560: 1556: 1552: 1548: 1544: 1540: 1533: 1525: 1521: 1517: 1513: 1509: 1505: 1498: 1490: 1486: 1481: 1476: 1472: 1468: 1465:(6): e91863. 1464: 1460: 1456: 1449: 1441: 1437: 1432: 1427: 1422: 1417: 1413: 1409: 1405: 1398: 1390: 1386: 1381: 1376: 1372: 1368: 1364: 1360: 1356: 1352: 1348: 1341: 1333: 1329: 1324: 1319: 1315: 1311: 1307: 1303: 1299: 1292: 1284: 1280: 1275: 1270: 1266: 1262: 1258: 1254: 1250: 1243: 1235: 1231: 1226: 1221: 1217: 1213: 1209: 1205: 1201: 1194: 1192: 1190: 1181: 1177: 1173: 1169: 1165: 1161: 1154: 1152: 1143: 1139: 1134: 1129: 1125: 1121: 1117: 1113: 1109: 1102: 1100: 1091: 1087: 1082: 1077: 1073: 1069: 1065: 1061: 1057: 1050: 1048: 1039: 1035: 1030: 1025: 1021: 1017: 1013: 1009: 1005: 998: 990: 986: 981: 976: 972: 968: 964: 960: 956: 949: 947: 945: 943: 941: 939: 937: 935: 933: 931: 922: 918: 914: 910: 906: 902: 895: 887: 883: 878: 873: 869: 865: 861: 857: 856:Endocrinology 853: 846: 838: 834: 830: 826: 822: 818: 811: 803: 799: 794: 789: 785: 781: 777: 770: 762: 758: 753: 748: 744: 740: 736: 732: 728: 721: 719: 717: 715: 713: 711: 709: 707: 705: 703: 701: 699: 697: 688: 684: 679: 674: 670: 666: 662: 658: 654: 647: 639: 635: 630: 625: 621: 617: 613: 609: 605: 598: 596: 594: 592: 590: 588: 586: 577: 573: 569: 565: 560: 555: 550: 545: 541: 537: 533: 526: 522: 511: 508: 506: 503: 501: 498: 496: 493: 491: 488: 486: 483: 481: 478: 476: 473: 472: 465: 456: 452: 449: 444: 440: 431: 429: 425: 421: 417: 413: 407: 391: 388: 384: 383: 382: 374: 372: 368: 364: 355: 352: 348: 344: 340: 331: 329: 320: 308: 305: 302: 298: 295: 294: 288: 284: 282: 278: 274: 268: 266: 262: 258: 257:blood glucose 254: 250: 246: 242: 237: 235: 230: 226: 222: 220: 212: 202: 193: 190: 188: 184: 180: 175: 166: 164: 154: 152: 148: 144: 140: 136: 132: 129: 125: 121: 113: 102: 96: 92: 89: 86: 84: 80: 77: 74: 72: 68: 65: 62: 60: 56: 51: 47: 44: 40: 37: 34: 30: 25: 20: 2948:Pineal gland 2938:Epsilon cell 2922: 2876:Sertoli cell 2789:Oxyphil cell 2719:Pars nervosa 2548: 2544: 2534: 2499: 2496:Cell Systems 2495: 2485: 2460: 2456: 2450: 2407: 2403: 2393: 2383: 2348: 2344: 2334: 2297: 2293: 2241: 2237: 2187: 2183: 2173: 2128: 2124: 2114: 2092:(1): 50–56. 2089: 2085: 2079: 2042: 2038: 2028: 2001: 1998:Diabetologia 1997: 1951: 1947: 1937: 1907:(1): 48–56. 1904: 1900: 1894: 1869: 1865: 1859: 1834: 1830: 1824: 1799: 1795: 1757: 1754:Diabetologia 1753: 1743: 1716: 1713:Diabetologia 1712: 1702: 1667: 1663: 1653: 1616: 1612: 1602: 1577: 1573: 1567: 1545:(1): 60–67. 1542: 1538: 1532: 1507: 1503: 1497: 1462: 1458: 1448: 1411: 1407: 1397: 1354: 1350: 1340: 1305: 1301: 1291: 1256: 1252: 1242: 1207: 1203: 1163: 1159: 1115: 1112:Cell Calcium 1111: 1063: 1059: 1011: 1007: 997: 965:(1): 25–53. 962: 958: 904: 900: 894: 859: 855: 845: 820: 816: 810: 786:(2): 19–39. 783: 779: 769: 734: 730: 660: 656: 646: 611: 607: 539: 535: 525: 485:Guangxitoxin 462: 453: 447: 445: 441: 437: 419: 415: 411: 408: 405: 380: 371:hypoglycemia 361: 351:muscle cells 337: 326: 317: 285: 269: 238: 223: 207: 191: 179:insulin gene 176: 172: 160: 123: 119: 118: 63: 2999:Development 2982:Paraganglia 2956:Pinealocyte 2871:Leydig cell 2148:10995/73117 1459:JCI Insight 1414:: 145–161. 907:(1): 1–10. 377:Medications 249:glucokinase 53:Identifiers 2933:Delta cell 2918:Alpha cell 2784:Chief cell 1866:Metabolism 1580:(1): 1–9. 517:References 490:Alpha cell 363:Insulinoma 358:Insulinoma 281:exocytosis 253:glycolysis 120:Beta cells 2923:Beta cell 2734:Pituicyte 2711:Posterior 2244:: 85–94. 2165:205412167 2045:(1): 19. 1066:: 17–30. 297:C-peptide 187:C-peptide 128:endocrine 48:secretion 22:Beta cell 3019:Category 2994:Placenta 2866:Testicle 2634:Anterior 2575:27667667 2526:27693023 2477:17666486 2442:16815907 2375:22512788 2326:27516776 2266:21795162 2258:27838399 2214:22352879 2157:25251897 2086:Diabetes 2071:27895534 2020:22526604 1970:17638715 1921:27984486 1901:Pancreas 1831:Diabetes 1816:12850656 1776:17805509 1735:11793013 1694:28368239 1645:34991585 1619:(1): 9. 1489:28352665 1440:23226049 1332:25844899 1234:16321791 1142:21944825 1090:28527919 1038:24843702 989:22974359 921:18778246 886:29244064 837:21742788 802:16278749 761:28951821 687:22424227 638:28951820 576:17908732 568:26030186 468:See also 412:in vitro 397:Research 277:vesicles 163:hormones 157:Function 151:diabetes 42:Function 32:Location 2928:PP cell 2836:Medulla 2753:Thyroid 2566:5069352 2517:5092539 2433:1557567 2412:Bibcode 2366:3438879 2317:4969512 2205:3417415 2106:9421374 2062:5117600 1929:3723691 1886:1895955 1851:7589820 1685:5581966 1636:8740476 1594:1679326 1559:6336620 1524:9228006 1504:Science 1480:5358484 1431:3513215 1389:2673420 1380:1280472 1359:Bibcode 1323:4463204 1283:7593639 1225:1569593 1180:2185070 1133:3223281 1081:7269041 1029:4020243 980:3934755 877:5776497 793:1204764 752:5605729 678:5890906 629:5605733 559:4589993 448:in vivo 428:alloxan 420:in vivo 416:in vivo 347:adipose 267:ratio. 219:channel 147:glucose 139:insulin 124:β-cells 46:Insulin 27:Details 2858:Gonads 2808:Cortex 2573:  2563:  2524:  2514:  2475:  2440:  2430:  2373:  2363:  2324:  2314:  2264:  2256:  2212:  2202:  2163:  2155:  2104:  2069:  2059:  2018:  1968:  1927:  1919:  1884:  1849:  1814:  1774:  1733:  1692:  1682:  1643:  1633:  1592:  1557:  1522:  1487:  1477:  1438:  1428:  1387:  1377:  1330:  1320:  1281:  1274:185903 1271:  1232:  1222:  1178:  1140:  1130:  1088:  1078:  1036:  1026:  987:  977:  919:  884:  874:  835:  800:  790:  759:  749:  685:  675:  636:  626:  574:  566:  556:  536:Islets 367:benign 349:, and 307:Amylin 143:amylin 2970:Other 2883:Ovary 2729:Stalk 2262:S2CID 2161:S2CID 1925:S2CID 572:S2CID 343:liver 245:GLUT2 211:GLUT2 131:cells 99:[ 88:85704 59:Latin 2571:PMID 2522:PMID 2473:PMID 2438:PMID 2371:PMID 2322:PMID 2298:2016 2254:PMID 2210:PMID 2153:PMID 2102:PMID 2067:PMID 2016:PMID 1966:PMID 1917:PMID 1882:PMID 1847:PMID 1812:PMID 1772:PMID 1731:PMID 1690:PMID 1641:PMID 1590:PMID 1555:PMID 1520:PMID 1485:PMID 1436:PMID 1385:PMID 1328:PMID 1279:PMID 1230:PMID 1176:PMID 1138:PMID 1086:PMID 1034:PMID 985:PMID 917:PMID 882:PMID 833:PMID 798:PMID 757:PMID 683:PMID 657:Cell 634:PMID 564:PMID 227:and 177:The 141:and 2561:PMC 2553:doi 2512:PMC 2504:doi 2465:doi 2461:293 2428:PMC 2420:doi 2361:PMC 2353:doi 2312:PMC 2302:doi 2246:doi 2242:445 2200:PMC 2192:doi 2188:166 2143:hdl 2133:doi 2129:298 2094:doi 2057:PMC 2047:doi 2006:doi 1956:doi 1952:147 1909:doi 1874:doi 1839:doi 1804:doi 1762:doi 1721:doi 1680:PMC 1672:doi 1631:PMC 1621:doi 1582:doi 1578:179 1547:doi 1512:doi 1508:277 1475:PMC 1467:doi 1426:PMC 1416:doi 1375:PMC 1367:doi 1318:PMC 1310:doi 1306:125 1269:PMC 1261:doi 1220:PMC 1212:doi 1208:360 1168:doi 1128:PMC 1120:doi 1076:PMC 1068:doi 1064:179 1024:PMC 1016:doi 975:PMC 967:doi 909:doi 905:415 872:PMC 864:doi 860:159 825:doi 788:PMC 747:PMC 739:doi 673:PMC 665:doi 661:148 624:PMC 616:doi 554:PMC 544:doi 426:or 265:ADP 261:ATP 217:ATP 83:FMA 3021:: 2569:. 2559:. 2549:24 2547:. 2543:. 2520:. 2510:. 2498:. 2494:. 2471:. 2459:. 2436:. 2426:. 2418:. 2408:91 2406:. 2402:. 2369:. 2359:. 2349:21 2347:. 2343:. 2320:. 2310:. 2296:. 2292:. 2274:^ 2260:. 2252:. 2240:. 2222:^ 2208:. 2198:. 2186:. 2182:. 2159:. 2151:. 2141:. 2127:. 2123:. 2100:. 2090:47 2088:. 2065:. 2055:. 2043:18 2041:. 2037:. 2014:. 2002:55 2000:. 1996:. 1978:^ 1964:. 1950:. 1946:. 1923:. 1915:. 1905:46 1903:. 1880:. 1870:40 1868:. 1845:. 1835:44 1833:. 1810:. 1800:25 1798:. 1784:^ 1770:. 1758:50 1756:. 1752:. 1729:. 1717:44 1715:. 1711:. 1688:. 1678:. 1668:17 1666:. 1662:. 1639:. 1629:. 1617:22 1615:. 1611:. 1588:. 1576:. 1553:. 1543:56 1541:. 1518:. 1506:. 1483:. 1473:. 1461:. 1457:. 1434:. 1424:. 1410:. 1406:. 1383:. 1373:. 1365:. 1355:56 1353:. 1349:. 1326:. 1316:. 1304:. 1300:. 1277:. 1267:. 1257:96 1255:. 1251:. 1228:. 1218:. 1206:. 1202:. 1188:^ 1174:. 1164:18 1162:. 1150:^ 1136:. 1126:. 1116:50 1114:. 1110:. 1098:^ 1084:. 1074:. 1062:. 1058:. 1046:^ 1032:. 1022:. 1010:. 1006:. 983:. 973:. 961:. 957:. 929:^ 915:. 903:. 880:. 870:. 858:. 854:. 831:. 821:91 819:. 796:. 784:26 782:. 778:. 755:. 745:. 733:. 729:. 695:^ 681:. 671:. 659:. 655:. 632:. 622:. 610:. 606:. 584:^ 570:. 562:. 552:. 538:. 534:. 373:. 345:, 153:. 71:TH 2608:e 2601:t 2594:v 2577:. 2555:: 2528:. 2506:: 2500:3 2479:. 2467:: 2444:. 2422:: 2414:: 2377:. 2355:: 2328:. 2304:: 2268:. 2248:: 2216:. 2194:: 2167:. 2145:: 2135:: 2108:. 2096:: 2073:. 2049:: 2022:. 2008:: 1972:. 1958:: 1931:. 1911:: 1888:. 1876:: 1853:. 1841:: 1818:. 1806:: 1778:. 1764:: 1737:. 1723:: 1696:. 1674:: 1647:. 1623:: 1596:. 1584:: 1561:. 1549:: 1526:. 1514:: 1491:. 1469:: 1463:2 1442:. 1418:: 1412:3 1391:. 1369:: 1361:: 1334:. 1312:: 1285:. 1263:: 1236:. 1214:: 1182:. 1170:: 1144:. 1122:: 1092:. 1070:: 1040:. 1018:: 1012:4 991:. 969:: 963:9 923:. 911:: 888:. 866:: 839:. 827:: 804:. 763:. 741:: 735:6 689:. 667:: 640:. 618:: 612:6 578:. 546:: 540:7 215:K 122:( 103:]

Index

Pancreatic islet
Insulin
Latin
TH
H3.04.02.0.00026
FMA
85704
Anatomical terms of microanatomy
edit on Wikidata

endocrine
cells
pancreatic islets
insulin
amylin
glucose
diabetes
hormones
insulin gene
rough endoplasmic reticulum
C-peptide
A diagram of the Consensus Model of glucose-stimulated insulin secretion
GLUT2
KATP channel
Voltage-gated calcium channels
ATP-sensitive potassium ion channels
potential difference
facilitated diffusion
GLUT2
glucokinase

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