Lactate dehydrogenase production in hepatocytes is increased at an early stage of acute liver failure

Kazuhiro Kotoh, Masaki Kato, Motoyuki Kohjima, Masatake Tanaka, Masayuki Miyazaki, Kazuhiko Nakamura, Munechika Enjoji, Makoto Nakamuta, Ryoichi Takayanagi

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Abstract

Although the mechanism involved in acute liver failure (ALF) has not yet been clarified, microcirculatory disturbance in the liver appears to play a pivotal role in the progression of this disease. To confirm the existence of hepatic hypoxic conditions, we evaluated the amounts of lactate dehydrogenase (LDH) in hepatocytes, since its production increases under low oxygen concentrations. Histological examination was performed in 7 patients with ALF. All 7 patients underwent a liver biopsy during the acute phase of ALF, and 4 of them underwent a second biopsy during the recovery phase. The obtained samples were immunohistochemically stained with anti-LDH5 and anti-CD-68 antibodies. As controls, we examined samples from patients with acute hepatitis, chronic hepatitis and liver cirrhosis. The production of LDH by hepatocytes and the number of CD-68 positive macrophages were markedly increased at the acute phase of ALF, and both of these effects abruptly decreased during the recovery phase. By contrast, most of the samples from the patients with chronic hepatitis and acute hepatitis showed slightly any increase in LDH staining. In cirrhotic patients, partially elevated LDH production was observed mainly around the central vein, but the staining intensity was less compared to that in ALF patients. Our findings indicate that hepatic hypoxic conditions exist in ALF at the acute phase and seem to closely correlate with macrophage overactivation in the liver. We speculate that microcirculatory disturbance may be a key process in the development and progression of ALF.

Original languageEnglish
Pages (from-to)195-199
Number of pages5
JournalExperimental and Therapeutic Medicine
Volume2
Issue number2
DOIs
Publication statusPublished - Mar 1 2011

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Acute Liver Failure
L-Lactate Dehydrogenase
Hepatocytes
Liver
Chronic Hepatitis
Hepatitis
Macrophages
Staining and Labeling
Biopsy
Liver Cirrhosis
Disease Progression
Veins
Oxygen
Antibodies

All Science Journal Classification (ASJC) codes

  • Immunology and Microbiology (miscellaneous)
  • Cancer Research

Cite this

Lactate dehydrogenase production in hepatocytes is increased at an early stage of acute liver failure. / Kotoh, Kazuhiro; Kato, Masaki; Kohjima, Motoyuki; Tanaka, Masatake; Miyazaki, Masayuki; Nakamura, Kazuhiko; Enjoji, Munechika; Nakamuta, Makoto; Takayanagi, Ryoichi.

In: Experimental and Therapeutic Medicine, Vol. 2, No. 2, 01.03.2011, p. 195-199.

Research output: Contribution to journalArticle

Kotoh, Kazuhiro ; Kato, Masaki ; Kohjima, Motoyuki ; Tanaka, Masatake ; Miyazaki, Masayuki ; Nakamura, Kazuhiko ; Enjoji, Munechika ; Nakamuta, Makoto ; Takayanagi, Ryoichi. / Lactate dehydrogenase production in hepatocytes is increased at an early stage of acute liver failure. In: Experimental and Therapeutic Medicine. 2011 ; Vol. 2, No. 2. pp. 195-199.
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