Increased Glutamate Dehydrogenase Activity in Alcohol Dependent Persons: A Novel Old Marker | Chapter 1 | Recent Developments in Chemistry and Biochemistry Research Vol. 10

Alcoholism has a pronounced effect on people’s mental and physical health; in addition, it greatly influences family life as well as social and professional environments. It can be indirectly ascertained by means of some biochemical markers in serum, such as carbohydrate-deficient transferrin (CDT), gamma-glutamyl transferase (GGT), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and mean corpuscular volume (MCV). Combinations of alcohol markers increase sensitivity and diminish specificity. The aims of this study were as follows: to estimate and determine the role of GLDH as a marker of alcoholism, maintenance of abstinence and recurrence of alcohol consumption, and to define its specifics, sensitivity and clinical applicability. Also in the combinations with other markers after new findings about it were discovered.

The list of alcohol dependence markers in blood was assessed in 238 alcohol-dependents admitted to the hospital and 111 healthy individuals. A blood sample was taken from every alcohol-dependent three times: on admission, after 24 hours and after seven days.

Alcohol-dependents were ascertained to have higher GLDH serum activities (mean activities in men 351.53 nkat/L, women 296.08 nkat/L), the higher, the less elapsed time there was after the latest alcohol intake. In comparison with other markers, the decrease in GLDH activity is the fastest within the first 24 hours, whereas with AST and GLDH after 7 days. The kinetics of GLDH and AST is more applicable than GGT kinetics after a week’s cessation of drinking, but GLDH kinetics are the most reliable.

As no marker is known to be sufficiently specific and sensitive to diagnose chronic excessive alcohol intake, combinations of alcohol markers increase sensitivity and diminish specificity. With almost 90% specificity, GLDH was found to be the most specific laboratory marker, but a combination of GLDH and AST reached the highest specificity with 82%. The sensitivity of the combination of MCV and GLDH kinetics after one week of abstinence was indicative of 97.2%. Designed were some recommended combinations, e.g. the combination which determines MCV and GLDH kinetics in serum (a fall in the activity after 7 days) provides a 97.22% diagnostic sensitivity to alcohol addiction.

GLDH is an equally accurate marker of alcoholism over GGT or CDT if a significantly faster decrease in its activity since the last alcohol consumption in alcohol dependents is taken into consideration and is not overlooked. Therefore, watching that increased GLDH activity in sera of alcohol-dependents and the return of serum GLDH to normal activity is an effective yet overlooked aid in diagnostic cessation of drinking as a specific marker of alcohol addiction.

 

Author (s) Details

Matej Kravos
The Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška Ulica 8, 6000 Koper, Slovenia.

 

Please see the book here:- https://doi.org/10.9734/bpi/rdcbr/v10/3570

An Overview on Glutamate Dehydrogenase and Its Clinical Applications| Chapter 10 | New Advances in Medicine and Medical Science Vol. 7

 The aim concerning this chapter is an overview of current knowledge about Glutamate dehydrogenase (GLDH) in dispassionate applicability and possible hints for further search. GLDH is applicable as a marker of addiction, maintenance of abstinence and repetition of alcohol use in daily practice, nevertheless allure role as an indirect flag in determining neurodegenerative processes in the mind offers limited help.In comparison to other indicators of alcoholism is GLDH equally correct. Time aspect deliberate serum GLDH activity is an ideal gravestone of alcoholism since it is exalted in alcohol abuse but its venture declines promptly subsequently the last alcohol intake in intoxicating dependent subjects and the change ends long enough to be smart to be evaluated.  Combinations of intoxicating markers increase sensitivity and belittle specificity.The kinetics of blood corpuscle GLDH activity is a particular marker of alcohol dependence in addition to of the cessation of drinking intoxicating. Alcohol consumption reduces GLDH project to some extent and consecutively it take care of lead to increased protein result and strengthen of belittled leukocyte protective skill.The gradually decreased GLDH venture over life may have few contribution when aging the same as the GLDH endeavor in leukocytes diminishes with growing up. The decrease in GLDH activity in the cerebrospinal fluid at neurodegenerative disorders concede possibility be one of the reasons for the neuroexcitotoxic glutamate effect.

Author(s) Details:

Matej Kravos,
ZPA Dr. Kravos, Trg Svobode 26, 2310 Slovenska Bistrica, Slovenia and The Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška ulica 8, 6000 Koper, Slovenia.

Please see the link here: https://stm.bookpi.org/NAMMS-V7/article/view/11040

Effect of Ultrasound in the enhancement of Protein Metabolism and Enzyme Activities in the Fat body of Fifth Instar Silkworm, Bombyx mori L.| Chapter 3 | Research Aspects in Biological Science Vol. 7

 Under the influence of ultrasound, protein metabolism parameters such as total, soluble proteins, free amino acids, and activity levels of protease, glutamate dehydrogenase, aspartate amino transferase, and alanine aminotransferase were measured in the fat body of the fifth instar larva of the silkworm, Bombyx mori. On these parameters, ultrasonography generally has an elevating effect. The events of histogenesis and histolysis connected to the metamorphosis of the silkworm are correlated with changes in the levels of certain biochemical components. Under the impact of ultrasound, the metabolism of proteins is accelerated, resulting in increased spinning activity, increased protein turnover in silk, and increased sericultural production. Enhancement of proteins by ultrasound clearly documented the induction of severe proteolysis and transamination of amino acids.

Author(s) Details:

P. Naga Jyothi,
Department of Fishery Science and Aquaculture, Sri Venkateswara University , Tirupati, India.

Please see the link here: https://stm.bookpi.org/RABS-V7/article/view/8042