Book Description
This digital document is a journal article from Comparative Biochemistry and Physiology, Part C, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Environmental increase in nitrite impairs the function of several aquatic species, including fishes. Nitrite reacts with hemoglobin yielding the non-functional methemoglobin (metHb), and many physiological disturbances can arise. The physiological mechanisms to cope with nitrite are still unclear in fish. Hematological parameters, the role of NADH-methemoglobin reductase system and the electrolytic balance were studied in the freshwater teleost Brycon cephalus (matrinxa) exposed to 0.2, 0.4 and 0.6 mg/L of nitrite N-NO"2 for 24 and 96 h. Hematocrit, total hemoglobin and the red blood cell (RBC) number decreased. Methemoglobin content increased from 1% to 69% for 24 h of exposure and drastically from 5-6% to 90% for 96 h. The activity of NADH-methemoglobin reductase system displayed a tendency of increase in response to nitrite concentration or time of exposure. In the plasma, nitrite was accumulated to values 30-fold higher than the environmental concentration. The plasma K^+ concentration increased only in fish exposed to NO"2 for 24 h. No changes in plasma protein and Na^+ were observed during nitrite exposure but Cl-presented a punctual increase at 0.2 mg/L N-NO"2-96 h. The hematological data suggest that nitrite caused functional and hemolytic anemia. Furthermore, the electrolytic balance was relatively undisturbed, and the nitrite clearance in matrinxa is likely depending on other factors than NADH-methemoglobin reductase system. ... Read more

Book Description
The article is excerpted fromGale Encyclopedia of Medicine.

Consult the second edition of this authoritative, comprehensive, in-depth medical guide for information on more than 1,700 medical topics in language accessible to adult laypersons. Presented in a single alphabetical sequence, articles range in length from one or two paragraphs for minor topics, to several pages or more for major topics. Disease/disorder articles typically cover definition; description; causes and symptoms; diagnosis; treatments; prevention; and more. Test/treatment articles typically cover definition; purposes; precautions; preparation; risks; normal and abnormal results; and much more. This second edition includes more than 200 new entries, 300 updated entries, approximately 650 color images and illustrations, and a comprehensive subject index. New features include biographical and historical sidebars throughout the text.

Disease/disorder articles contain some or all of the following sections:

• Definitions -- brief dictionary-style definition of the disorder
• Descriptions -- overview of the disorder; who gets it and why
• Causes & symptoms -- process, substance or organism that produces the condition; any risk factors that increase susceptibility to the condition; signs and symptoms of the disease
• Diagnosis -- overview of procedures and tests used to diagnose the condition; how the test is done; who should be tested and when; time required; cost; whether it's typically covered by insurance
• Treatments -- overview of conventional methods of care or management of the condition, such as drugs, surgeries, physical therapy, etc.
• Alternative treatments -- overview of alternative/complementary therapies that may be used to treat the condition
• Prognosis -- probable outcome of the disease
• Preventions -- what actions can be taken to prevent the condition from occurring

Book Description
The article is excerpted fromGale Encyclopedia of Medicine.

Consult the second edition of this authoritative, comprehensive, in-depth medical guide for information on more than 1,700 medical topics in language accessible to adult laypersons. Presented in a single alphabetical sequence, articles range in length from one or two paragraphs for minor topics, to several pages or more for major topics. Disease/disorder articles typically cover definition; description; causes and symptoms; diagnosis; treatments; prevention; and more. Test/treatment articles typically cover definition; purposes; precautions; preparation; risks; normal and abnormal results; and much more. This second edition includes more than 200 new entries, 300 updated entries, approximately 650 color images and illustrations, and a comprehensive subject index. New features include biographical and historical sidebars throughout the text.

Disease/disorder articles contain some or all of the following sections:

• Definitions -- brief dictionary-style definition of the disorder
• Descriptions -- overview of the disorder; who gets it and why
• Causes & symptoms -- process, substance or organism that produces the condition; any risk factors that increase susceptibility to the condition; signs and symptoms of the disease
• Diagnosis -- overview of procedures and tests used to diagnose the condition; how the test is done; who should be tested and when; time required; cost; whether it's typically covered by insurance
• Treatments -- overview of conventional methods of care or management of the condition, such as drugs, surgeries, physical therapy, etc.
• Alternative treatments -- overview of alternative/complementary therapies that may be used to treat the condition
• Prognosis -- probable outcome of the disease
• Preventions -- what actions can be taken to prevent the condition from occurring

Book Description

Information on many genetic disorders, and the frequent new findings on them, has been extremely difficult to come byuntil now. The Gale Encyclopedia of Genetic Disorders addresses the need for current, hard-to-find facts on emerging discoveries. The two-volume Encyclopedia, presented in a single alphabetical sequence, provides clear, complete information on genetic disorders, including conditions, tests, procedures, treatments and therapies, in articles that are both comprehensive and easy to understand, in language accessible to laypersons. The articles are arranged in a standardized format for quick comparison and ease of use, while non-disorder topics are covered in detail with extended entries. Students will want to consult the Gale Encyclopedia of Genetic Disorders for useful information on a range of well known disorders, including Down Syndrome, Trisomy, Hemophilia and Tourette Syndrome, and rarely seen diseases such as Meckel Syndrome, Neuraminidase Deficiency and Phenylketonuria.

Book Description

Information on many genetic disorders, and the frequent new findings on them, has been extremely difficult to come byuntil now. The Gale Encyclopedia of Genetic Disorders addresses the need for current, hard-to-find facts on emerging discoveries. The two-volume Encyclopedia, presented in a single alphabetical sequence, provides clear, complete information on genetic disorders, including conditions, tests, procedures, treatments and therapies, in articles that are both comprehensive and easy to understand, in language accessible to laypersons. The articles are arranged in a standardized format for quick comparison and ease of use, while non-disorder topics are covered in detail with extended entries. Students will want to consult the Gale Encyclopedia of Genetic Disorders for useful information on a range of well known disorders, including Down Syndrome, Trisomy, Hemophilia and Tourette Syndrome, and rarely seen diseases such as Meckel Syndrome, Neuraminidase Deficiency and Phenylketonuria.

Book Description
This digital document is an article from Human Biology, published by Wayne State University Press on October 1, 2004. The length of the article is 1704 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: KEY WORDS: BAHRAIN, G6PD DEFICIENCY, HEMOGLOBINOPATHIES, HEREDITARY ELLIPTOCYTOSIS.

Citation Details
Title: Hemoglobinopathies, G6PD deficiency, and hereditary elliptocytosis in Bahrain.(Brief Communications)
Author: Sumitra Dash
Publication: Human Biology (Refereed)
Date: October 1, 2004
Publisher: Wayne State University Press
Volume: 76Issue: 5Page: 779(5)

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Book Description
This digital document is an article from Southern Medical Journal, published by Thomson Gale on September 1, 2006. The length of the article is 1465 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: An over-the-counter omission.(Case Report)(adverse side effects of nonprescribed drugs)
Author: Danielle Bowen Scheurer
Publication: Southern Medical Journal (Magazine/Journal)
Date: September 1, 2006
Publisher: Thomson Gale
Volume: 99Issue: 9Page: 1005(2)

Distributed by Thomson Gale ... Read more