INFLUENCE OF HORMONE THERAPY ON BODY FLUIDS, ELECTROLYTE BALANCE AND MUCOPOLYSACCHARIDES IN MYXEDEMA*†

Abstract: Water distribution in each compartment of the body involves concentration of solutes in body fluids, and the amount of dissolved substance in a solvent called osmolality. Electrolyte that has the biggest contributor in determining the serum osmolality is sodium, which is osmotically active. Hipoosmolality actually describes the state of hyponatremia, and hyperosmolality describes the state of hypernatremia. Examination of plasma and urine osmolality is very helpful in the management of patients with water and electrolyte imbalance, in addition to assess the antidiuretic hormone (ADH) abnormalities. Urine osmolality is important in evaluating the ability of the kidney to concentrate the urine, in addition to monitor the fluid and electrolyte balance. There are two ways of osmolality examination: 1) indirectly, by using osmometer (osmolality measurement) with a freezing point depression method; 2) directly, by using a formula (osmolality count).Keywords: water, sodium, osmolality, freezing point depression, osmolality countAbstrak: Distribusi air pada setiap kompartemen tubuh melibatkan kadar zat terlarut di dalam cairan tubuh, dan jumlah zat terlarut dalam suatu pelarut yang disebut osmolalitas. Elektrolit pemberi kontribusi terbesar dalam menentukan besarnya osmolalitas serum ialah natrium, yang aktif secara osmotik. Keadaan hipoosmolalitas sebenarnya menggambarkan keadaan hiponatremia, sebaliknya hiperosmolalitas menggambarkan keadaan hipernatremia. Pemeriksaan osmolalitas plasma dan urin sangat membantu penatalaksanaan pasien dengan gangguan keseimbangan air dan elektrolit, selain menilai kelainan antidiuretic hormone (ADH). Osmolalitas urin penting untuk mengetahui kemampuan ginjal memekatkan urin, selain memonitor keseimbangan cairan dan elektrolit. Terdapat dua cara pemeriksaan osmolalitas yaitu: 1) secara tidak langsung menggunakan osmometer (osmolalitas ukur) dengan metode freezing point depression; 2) secara langsung dengan menggunakan rumus (osmolalitas hitung).Kata kunci: air, natrium, osmolalitas, freezing point depression, osmolalitas hitung

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Essentials of Fluid Balance. Body Fluids and the Acid-Base Balance. A Guide to Learning Fluid Therapy. Fluid Therapy and Disorders of Electrolyte Balance. An Introduction to Body Fluid Metabolism.

Annals of Internal Medicine ◽

10.7326/0003-4819-63-6-1166 ◽

1965 ◽

Vol 63 (6) ◽

pp. 1166

Keyword(s):

Fluid Balance ◽

Fluid Therapy ◽

Body Fluid ◽

Body Fluids ◽

Electrolyte Balance ◽

Acid Base Balance ◽

Acid Base ◽

Base Balance

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BACK TO BASICS

Pediatrics in Review ◽

10.1542/pir.17.11.395 ◽

1996 ◽

Vol 17 (11) ◽

pp. 395-403

Author(s):

Nicholas Jospe ◽

Gilbert Forbes

Keyword(s):

Total Body Water ◽

Extracellular Fluid ◽

Body Fluids ◽

Body Water ◽

The Body ◽

Electrolyte Balance ◽

Electrolyte Disorders ◽

Core Concepts ◽

Body Fluid Volume ◽

Total Body

Changes in volume and composition of body fluids due to disorders of fluid and electrolyte balance cause various common clinical illnesses. The rationale for reviewing the diagnosis and management of fluid and electrolyte disorders was eloquently denoted by Dr Altemeier, when he suggested that this knowledge belongs among the core concepts needed by the "keepers of the gates," that is, primary care pediatricians.1 In the body, homeostasis is maintained by the coordinated action of behavioral, hormonal, renal, and vascular adaptations to volume and osmotic changes. These core issues have been outlined in a previous article in this journal by Dr Hellerstein, and the current article proceeds from that discussion.2 Following introductory comments about body fluid volume and composition, we provide an overview of some of the etiologies of the disorders of volume, tonicity, and composition of body fluids and of the therapy to correct these disorders. Sodium, Osmolality, and the Volume of Body Fluids Total body water, which is 55% to 72% of body mass, varies with sex, age, and fat content and is distributed between the intracellular and extracellular spaces. The extracellular fluid (ECF), which comprises about one third of total body water, includes the intravascular plasma fluid and the extravascular interstitial fluid.

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Unorthodox Sites and Modes of Aldosterone Action

Physiology ◽

10.1152/nips.01463.2003 ◽

2004 ◽

Vol 19 (2) ◽

pp. 51-54 ◽

Cited By ~ 1

Author(s):

Hans Oberleithner

Keyword(s):

Atomic Force Microscopy ◽

Endothelial Cells ◽

Strong Evidence ◽

Vascular Endothelium ◽

Body Fluids ◽

Electrolyte Balance ◽

Renal Epithelium ◽

Force Microscopy ◽

Atomic Force

Aldosterone controls electrolyte balance by acting on the renal epithelium. However, there is strong evidence that vascular endothelium is another target for mineralocorticoids. Endothelial cells gain sensitivity to diuretics when exposed to aldosterone. Atomic force microscopy detects such phenomena. It is speculated that endothelium and kidney join forces in the regulation of body fluids.

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Isolation of Asbestos from Lung Tissue and Sputum

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100054261 ◽

1982 ◽

Vol 40 ◽

pp. 330-331

Author(s):

M. G. Williams ◽

C. Corn ◽

R. F. Dodson ◽

G. A. Hurst

Keyword(s):

Sodium Hypochlorite ◽

Lung Tissue ◽

Body Fluids ◽

Unknown Etiology ◽

The Past

During this century, interest in the particulate content of the organs and body fluids of those individuals affected by pneumoconiosis, cancer, or other diseases of unknown etiology developed and concern was further prompted with the increasing realization that various foreign particles were associated with or caused disease. Concurrently particularly in the past two decades, a number of methods were devised for isolating particulates from tissue. These methods were recently reviewed by Vallyathan et al. who concluded sodium hypochlorite digestion was both simple and superior to other digestion procedures.

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ACE2 as therapeutic agent

Clinical Science ◽

10.1042/cs20200570 ◽

2020 ◽

Vol 134 (19) ◽

pp. 2581-2595

Author(s):

Qiuhong Li ◽

Maria B. Grant ◽

Elaine M. Richards ◽

Mohan K. Raizada

Keyword(s):

Therapeutic Agent ◽

Renin Angiotensin System ◽

Peptide Hormone ◽

Experimental Models ◽

Electrolyte Balance ◽

Ang Ii ◽

Angiotensin Converting Enzyme 2 ◽

Beneficial Effects ◽

Overwhelming Evidence ◽

Future Challenges

Abstract The angiotensin-converting enzyme 2 (ACE2) has emerged as a critical regulator of the renin–angiotensin system (RAS), which plays important roles in cardiovascular homeostasis by regulating vascular tone, fluid and electrolyte balance. ACE2 functions as a carboxymonopeptidase hydrolyzing the cleavage of a single C-terminal residue from Angiotensin-II (Ang-II), the key peptide hormone of RAS, to form Angiotensin-(1-7) (Ang-(1-7)), which binds to the G-protein–coupled Mas receptor and activates signaling pathways that counteract the pathways activated by Ang-II. ACE2 is expressed in a variety of tissues and overwhelming evidence substantiates the beneficial effects of enhancing ACE2/Ang-(1-7)/Mas axis under many pathological conditions in these tissues in experimental models. This review will provide a succinct overview on current strategies to enhance ACE2 as therapeutic agent, and discuss limitations and future challenges. ACE2 also has other functions, such as acting as a co-factor for amino acid transport and being exploited by the severe acute respiratory syndrome coronaviruses (SARS-CoVs) as cellular entry receptor, the implications of these functions in development of ACE2-based therapeutics will also be discussed.

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