L-Lactate Dehydrogenase

Publication Title: 
Human & Experimental Toxicology

HP-1 a herbal formulation comprising of Phyllanthus niruri and extracts of Terminalia belerica, Terminalia chebula, Phyllanthus emblica and Tinospora cordifolia has been evaluated for hepatoprotective activity against carbon tetrachloride (CCl4) induced toxicity. Results show that HP-1 reversed the leakage of lactate dehydrogenase (LDH) and glutamate pyruvate transaminase (GPT) and prevented the depletion of glutathione (GSH) levels in a primary monolayer culture of rat hepatocytes (in vitro).

Author(s): 
Tasaduq, S. A.
Singh, K.
Sethi, S.
Sharma, S. C.
Bedi, K. L.
Singh, J.
Jaggi, B. S.
Johri, R. K.
Publication Title: 
Indian Journal of Experimental Biology

Cardioprotective effect of ethanolic extract of Terminalia chebula fruits (500 mg/kg body wt) was examined in isoproterenol (200 mg/kg body wt) induced myocardial damage in rats. In isoproterenol administered rats, the level of lipid peroxides increased significantly in the serum and heart. A significant decrease was observed in the activity of the myocardial marker enzymes with a concomitant increase in their activity in serum. Histopathological examination was carried out to confirm the myocardial necrosis. T.

Author(s): 
Suchalatha, S.
Shyamala Devi, C. S.
Publication Title: 
Biological & Pharmaceutical Bulletin

The ripe fruit of Terminalia chebula RETZIUS (T. chebula RETZ) (Combretsceae), which is a native plant in India and Southeast Asia, has traditionally been used as a popular folk medicine for homeostatic, antitussive, laxative, diuretic, and cardiotonic treatments. The objective of this study was to evaluate the protective effects of an aqueous extract of fruit of T. chebula on the tert-butyl hydroperoxide (t-BHP)-induced oxidative injury observed in cultured rat primary hepatocytes and rat liver. Both treatment and pretreatment of the hepatocytes with the T.

Author(s): 
Lee, Hyun-Sun
Won, Nam Hee
Kim, Kyoung Heon
Lee, Hojoung
Jun, Woojin
Lee, Kwang-Won
Publication Title: 
Journal of Alternative and Complementary Medicine (New York, N.Y.)

OBJECTIVES: The purpose of this pilot study was to determine whether there are markers that can be used to study the effects of grounding on delayed-onset muscle soreness (DOMS). DESIGN AND SUBJECTS: Eight (8) healthy subjects were exposed to an eccentric exercise that caused DOMS in gastrocnemius muscles of both legs. Four (4) subjects were grounded with electrode patches and patented conductive sheets connected to the earth. Four (4) control subjects were treated identically, except that the grounding systems were not connected to the earth.

Author(s): 
Brown, Dick
Chevalier, Gaétan
Hill, Michael
Publication Title: 
Antimicrobial Agents and Chemotherapy

The sesquiterpene endoperoxide antimalarial agents arteether and artemether have been reported to cause neurotoxicity with a discrete distribution in the brain stems of rats and dogs after multiple doses. The nature and distribution of the brain lesions suggest a specific neuronal target, the identity of which is unknown.

Author(s): 
Wesche, D. L.
DeCoster, M. A.
Tortella, F. C.
Brewer, T. G.
Publication Title: 
Zhongguo Yao Li Xue Bao = Acta Pharmacologica Sinica

AIM: To study the effect of artemether (Art) on phosphorylase (PP), lactate dehydrogenase (LDH), glucose-6-phosphate dehydrogenase (G-6-PDH), and adenosine triphosphatase (ATPase) of S japonicum. METHODS: Mice infected with S. japonicum cercariae for 32-38 d were treated i.g. with Art 100-300 mg.kg-1 and killed 24-72 h after treatment for collection of schistosomes. The activities of PP, LDH, and G-6-PDH were measured by the formation of NADH or NADPH. The activity of ATPase was measured by the rate of release of inorganic phosphate (Pi) from ATP at 37 degrees C.

Author(s): 
Xiao, S. H.
You, J. Q.
Guo, H. F.
Mei, J. Y.
Jiao, P. Y.
Yao, M. Y.
Zhuang, Z. N.
Feng, Z.
Publication Title: 
Biomedical Research (Tokyo, Japan)

Chloroquine, quinine, artemisinin, and pyrimethamine are generally considered safe drugs for treatment of malaria during pregnancy; however, high doses of these drugs are detrimental with adverse outcome of pregnancy. Since antimalarial drugs interaction with placental cells has not been addressed, in this study, we employed a non-radioactive proliferation assay and lactate dehydrogenase (LDH) release assays to investigate the effect of these drugs on JAR trophoblastic cell survival.

Author(s): 
Nilkaeo, Athip
Bhuvanath, Suthinee
Praputbut, Sakonwun
Wisessombat, Seuptrakool
Publication Title: 
Antimicrobial Agents and Chemotherapy

The extension of drug resistance among malaria-causing Plasmodium falciparum parasites in Africa necessitates implementation of new combined therapeutic strategies. Drug susceptibility phenotyping requires precise measurements. Until recently, schizont maturation and isotopic in vitro assays were the only methods available, but their use was limited by technical constraints. This explains the revived interest in the development of replacement methods, such as the Plasmodium lactate dehydrogenase (pLDH) immunodetection assay.

Author(s): 
Kaddouri, Halima
Nakache, Serge
Houzé, Sandrine
Mentré, France
Le Bras, Jacques
Publication Title: 
The Journal of Biological Chemistry

Artemisinin and its derivatives are currently recommended as first-line antimalarials in regions where Plasmodium falciparum is resistant to traditional drugs. The cytotoxic activity of these endoperoxides toward rapidly dividing human carcinoma cells and cell lines has been reported, and it is hypothesized that activation of the endoperoxide bridge by an iron(II) species, to form C-centered radicals, is essential for cytotoxicity.

Author(s): 
Mercer, Amy E.
Maggs, James L.
Sun, Xiao-Ming
Cohen, Gerald M.
Chadwick, James
O'Neill, Paul M.
Park, B. Kevin
Publication Title: 
The American Journal of Tropical Medicine and Hygiene

We measured in vitro antimalarial drug susceptibility of 84 Plasmodium falciparum field isolates from Blantyre, Southern Malawi, using the WHO microtest and the lactate dehydrogenase assay. We also genotyped these isolates to investigate whether variation in their absolute drug sensitivity is associated with specific sets of pfcrt and pfmdr-1 mutations harbored by parasites.

Author(s): 
Nkhoma, Standwell
Molyneux, Malcolm
Ward, Stephen

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