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Sunday, April 26, 2020 | History

3 edition of Histochemistry of the Islets of Langerhans found in the catalog.

Histochemistry of the Islets of Langerhans

[and] Enzymology of the thymus ; [by] Lucie Arvy.

by R. H. Lange

  • 352 Want to read
  • 13 Currently reading

Published by Gustav Fischer in Stuttgart .
Written in English


Edition Notes

Statement[by] R.H. Lange :
SeriesHandbuch der Histochemie -- 7, Suppls, pt. 1
ContributionsArvy, Lucie.
ID Numbers
Open LibraryOL15261286M
ISBN 103437103148

  (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of. The dimensions of the islets of Langerhans are 50 to microns, and there are between ten and 20 islets per mg of gland tissue. The islets do not communicate with the gland’s effluent ducts. The islets of Langerhans develop from tubular processes of the anterior gut and, depending on the type of animal, consist of cells of several types.


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Histochemistry of the Islets of Langerhans by R. H. Lange Download PDF EPUB FB2

Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

The pancreatic islets or islets of Langerhans are the regions of the pancreas that contain its endocrine (hormone-producing) cells, discovered in by German pathological anatomist Paul Langerhans.

The pancreatic islets constitute 1 to 2% of the pancreas volume and receive 10–15% of its blood : D Islets of Langerhans, irregularly shaped patches of endocrine tissue located within the pancreas of most vertebrates.

They are named for the German physician Paul Langerhans, who first described them in The islets consist of four distinct cell types, of which three produce important hormones.

Islets of Langerhans contains critical background information, and recent advances made in essentially all areas of islet research. It is a major reference book, the first of its kind, for islet. A and B cells in the pancreatic islets of cattle are interlaced with one another.

The histochemical characteristics of the islet cells is similar to that of some other mammals. Series of differences are however detected concerning: the positive reaction for glucosephosphatase in the A cells and in the epithelium of the excretory ducts, the simultaneous presence of alkaline Cited by: 9.

Islets of Langerhans: Known as the insulin-producing tissue, the islets of Langerhans do more than are groups of specialized cells in the pancreas that make and secrete hormones. Named after the German pathologist Paul Langerhans (), who discovered them inthese cells sit in groups that Langerhans likened to little islands in.

Summary. The histological picuture of the Langerhans' islets in hamster pancreas is quite similar to that in white rat pancreas, i.e. the B-cells are located Cited by: Paul Langerhans also made the first careful and detailed description of the microscopic structure of the pancreas.

He described nine different types of cells including small, irregularly shaped, polygonal cells without granules, which formed numerous “zellhaufen”—literally cell heaps—measuring to mm in diameter, throughout the gland. Quantitative histochemistry of the islets of Langerhans. Insulin content of dissected beta cells.

LACY PE, WILLIAMSON JR. PMID: [PubMed - indexed for MEDLINE] MeSH Terms. Histocytochemistry* Humans; Insulin/chemistry* Insulin-Secreting Cells* Islets of Langerhans/chemistry* Substances.

InsulinCited by:   Researchers have developed a membrane with which individual islets of Langerhans – insulin-producing cell clusters – can be encapsulated. The idea behind the system is that these islets could.

Islet transplantation is the transplantation of isolated islets from a donor pancreas into another person. It is an experimental treatment for type 1 diabetes mellitus.

Once transplanted, the islets begin to produce insulin, actively regulating the level of glucose in the blood. Islets are usually infused into the person's : D Histochemistry is an important technique that is used for the visualization of biological structures.

As such, it is concerned with the identification and distribution of various chemical components of tissues through the use of stains, indicators as well as microscopy. Islets of Langerhans contain beta cells and are located within the pancreas.

Beta cells produce insulin which is needed to metabolize glucose within the body. Review Date 2/22/ Updated by: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University Histochemistry of the Islets of Langerhans book Washington School of Medicine.

Learn islets of langerhans with free interactive flashcards. Choose from 32 different sets of islets of langerhans flashcards on Quizlet.

The Islets of Langerhans: Biochemistry, Physiology, and Pathology Paperback – Janu by S. Cooperstein (Editor) See all 3 formats and editions Hide other formats and editions. Price New from Used from Kindle "Please retry" $ Format: Paperback.

Zn was studied in the pancreas of several species of small animals after intravenous injection of dithizone in aqueous solution. Of 24 rabbits all showed a strongly positive reaction for Zn in the islet cells. Under high magnification the reaction was shown mostly by violet-stained intracellular granules distributed near capillaries, in both alpha and beta : H.

Wolff, D. Ringleb. The islets of Langerhans comprise approximately % of the weight of the pancreas and are more concentrated in the tail than in the head or body of the pancreas. Islets can be isolated and separated completely from the exocrine pancreas by the collagenase technique, and the isolated islets will form, store, and release insulin in vitro.

The Islets of Langerhans: Biochemistry, Physiology, and Pathology reviews the state of knowledge in the complex phenomena involved in the functioning of the multiendocrine organ, the islet of Langerhans, and the various influences that can lead to Book Edition: 1.

Start studying islets of langerhans. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 1 Historical Review.- 2 Comparative Morphology of Pancreatic Islets in Animals.- 3 Growth Pattern of Pancreatic Islets in Animals.- 4 Histology, Cell Types, and Functional Correlation of Islets of Langerhans.- 5 The PP Cell.- 6 Quantitative Studies of the Islets of Nondiabetic Patients.- 7 Histochemistry and Electron Microscopy of Islets.- 8.

Histochemistry of Pancreas in Large White Yorkshire and Desi Pigs K. Iniyah*, S. Jayachitra, K. Balasundaram and A. Arulmozhi Department of Veterinary Anatomy, Veterinary College and Research Institute, Namakkal, Tamil Nadu, India *Corresponding author A B S T R A C T and endocrine part of islets of Langerhans.

Histochemistry definition is - a science that combines the techniques of biochemistry and histology in the study of the chemical constitution of cells and tissues. a science that combines the techniques of biochemistry and histology in the study of the chemical constitution of cells and tissues See the full definition.

Nagata T. Histochemistry, General and Special. ARBS Annu Rev Biomed Sci ; Histochemistry has been developed between the morphology. For part 1 see Abst.Vol.

Adult rabbits and rats were given dithizone solution as before for intravital staining of Zn, but a new method of preparing the solution gave better staining results. It was confirmed that adrenaline and insulin produced a clearly visible decrease in Zn in alpha cells of the pancreas of rats, but the loss of Zn from these cells in starvation could not be Cited by: Histochemistry of the islets of Langerhans [bound with] Enzymology of the thymus, Lucie Arvy.

With 86 illustrations and tables No copies of this book were found in stock from online book stores and marketplaces. Alert me when this book becomes : Islets of Langerhans. Jump to navigation Jump to search.

Metung a porcine mangalating pulu ning Langerhans. Ing kailing litratu metung yang masalang litratu melalang kapamiltan ning pamangamit hematoxylin stain; deng nuclei madalumdum lang pabilug at ing acinar kundilat a tissue madalumdum ya kesa keng pulung tissue.

Ing wanan a. Immunohistochemical identification of the endocrine cells in the pancreatic islets of the camel, horse and cattle ORIGINAL ARTICLE Eur.

Anat. 19 (1): () Shireen A. Hafez 1,2, Doaa M. Zaghloul 3 and Thomas Caceci 1 1Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic File Size: 1MB.

The islets of Langerhans contain from a few hundred to several thousand hormone-secreting endocrine cells. The islets are found throughout the pancreas but are most abundant in the tail region of the gland. The human pancreas contains, on average, about 1 million islets, which vary in size from 50 to |xm in diameter.

Each islet is separated from the surrounding acinar. The islets of Langerhans are the regions of the pancreas that contain its endocrine cells. Discovered in by German pathological anatomist Paul Langerhans, the islets of Langerhans constitute approximately 1 to 2% of the Full article >>> irregularly shaped patches of endocrine tissue located within the pancreas of most vertebrates.

They are named for the German. Pancreatic Islets. Pancreatic islets of Langerhans are small nests of cells, arranged into curvilinear cords, scattered throughout the pancreas. Islets are usually conspicuously paler (less intensely stained) than the acini of the exocrine pancreas, but in any case islets differ markedly from exocrine pancreas in the arrangement of cells (cords rather than acini).

Mature pancreatic β-cells can be distinguished from proliferating ones by expression of the Fltp reporter gene, which is triggered by Wnt signalling and β-cell polarization and islet by: The Evolution of Pancreatic Islets covers the proceedings of the symposium on The Evolution of Pancreatic Islets, held at Leningrad under the auspices of the Academy of Sciences in Leningrad, U.S.S.R.

islets of Langerhans (lahng'ĕr-hahnz), cellular masses consisting of several to several hundred cells lying in the interstitial tissue of the pancreas; they are composed of five different cell types that make up the endocrine portion of the pancreas and are the sources of insulin, glucagon, somatostatin, pancreatic polypeptide, and gastrin.

Histochemistry involves the differential staining of cells (i.e., using dyes that stain specific structural and molecular components) to reflect the chemical differences of the constituents. By choosing appropriate dyes, the histochemist is able, for example, to determine the acidity or alkalinity of the chemical compounds.

The rest of the pancreas serves to produce enzymes that aid in the digestion of food, while the islets of Langerhans produce hormones that help to regulate levels of sugar, also called glucose, in the blood.

Distributed throughout the pancreas, the islets of Langerhans are made up of at least five specific types of cells. The first chapter gives general theoretical ideas from which most part of the book is largely organized around.

As the book considers the arts and crafts making up the practice of histochemistry and biological staining, emphasis is given to the common physicochemical aspects of the technically diverse methodologies Edition: 1.

The islets of Langerhans are the regions of the pancreas that contain its endocrine (i.e., hormone-producing) cells. the islets of Langerhans constitute approximately 1 to 2% of the mass of the pancreas.

There are about one million islets in a healthy adult human pancreas, which are distributed throughout the organ. abstract = "Transplantation of insulin-producing tissue could ultimately provide a cure for insulin-dependent diabetes mellitus.

Pancreas transplantation is a clinical reality, but transplantation of the islets of Langerhans might soon become a widespread by: Destruction or impairment of function of the islets of Langerhans may result in diabetes or hypoglycaemia.

In Gustave-Edouard Laguesse () attached the name Langerhans to the structures. Langerhans did not suggest any function for them. The book has been reprinted with an English translation by H.

Morrison. Figure The pancreas and associated pancreatic islets (islets of Langerhans). Alpha cells secrete glucagon and beta cells secrete insulin. The pancreas is also exocrine, producing pancreatic juice for transport via the pancreatic duct to the duodenum of the small intestine.

t. islets of Langerhans: see pancreas pancreas, glandular organ that secretes digestive enzymes and hormones. In humans, the pancreas is a yellowish organ about 7 in.

( cm) long and in. ( cm) wide. Islets of Langerhans are located inside our pancreas. They are composed of two types of cells, alpha cells and beta cells. Beta cells secrete a hormone called insulin which convert extra sugar present in our blood into glycogen and stores into.What is the function of islets in the pancreas?

American Diabetes Association. Islets are groups of cells located in the pancreas that make hormones that help the body break down and use food. For example, alpha cells make glucagon and beta cells make insulin. They are also called islets of Langerhans.

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