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Lactate dehydrogenase ldh assay kit

Manufactured by Nanjing Jiancheng
Sourced in China

The Lactate dehydrogenase (LDH) assay kit is a laboratory tool designed to measure the activity of the LDH enzyme in various biological samples. LDH is an important enzyme involved in the conversion of lactate to pyruvate during glycolysis. The assay kit provides the necessary reagents and protocols to quantify LDH levels, which can be useful for various research and diagnostic applications.

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28 protocols using lactate dehydrogenase ldh assay kit

1

Hepatoprotective Mechanism of OEA Synthesis

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OEA synthesis was carried out as previously described (Li et al., 2015a (link)). Lipopolysaccharide (LPS), d-galactosamine (D-Gal), Zinc protoporphyrin IX (ZnPP) and all other chemicals were acquired from Sigma–Aldrich (Shanghai, China). Malondialdehyde (MDA), Superoxide dismutase (SOD), Glutathione peroxidase (GSH-PX), Alanine transaminase (ALT), Aspartate transaminase (AST), and lactate dehydrogenase (LDH) assay kits were obtained from Nanjing Jiancheng Bioengineering Institute (Nanjing, China) and Beijing Solarbio Science & Technology Co., Ltd. (Beijing, China). Cell Counting Kit-8 (CCK-8) was obtained from Beyotime Institute of Biotechnology (Shanghai, China). Anti-Cleaved caspase3 antibody (clone 5A1E) was purchased from Cell Signaling Technology (Shanghai, China). Anti-NLRP3 antibody (#A5652) was purchased from Abclonal (Wuhan, China). Anti-Caspase1 antibody (clone 14F468) was purchased from Santa cruz (Shanghai, China). Anti-PPAR-α antibody (#ab24509) was purchased from Abcam (Shanghai, China). Antibodies against Bax (#50599-2-Ig), Bcl-2 (#12789-1-AP), Nrf-2 (#16396-1-AP), HO-1 (#10701-1-AP), β-actin (clone 2D4H5) and GAPDH (clone 1E6D9) were purchased from Proteintech (Wuhan, China). HRP-conjugated goat anti-rabbit and goat anti-mouse antibodies were obtained from Proteintech (Wuhan, China).
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2

Inflammatory Pathway Induction and Analysis

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DMEM, RPMI 1640, and Opti-MEM medium were purchased from Thermo Fisher Scientific (Waltham, MA, USA). Fetal bovine serum, Hoechst 33342, propidiumiodide (PI), penicillin G sodium salt, lipopolysaccharide (LPS), Freund’s complete adjuvant, and chicken type II collagen were obtained from Merck (Darmstadt, Germany). Antibodies against NLRP3, GSDMD, caspase-1, NF-κB, and p-NF-κB were obtained from Cell Signaling Technology (Danvers, MA, USA). Antibodies against Tubulin, STING, p-STING, F4/80, and γ-H2AX were obtained From Abcam (Cambridge, United Kingdom). Mouse IL-1β and IL-18 uncoated ELISA kits were purchased from Thermos Fisher Scientific (Waltham, MA, USA). Lactate dehydrogenase (LDH) assay kits were obtained from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). TRIzol reagent, PrimeScript RT Reagent Kit with gDNA Eraser, Effectene Transfection Reagent, and SYBR Premix Ex TaqII were obtained from Vazyme (Nanjing, China). CCCP and JSH-23 were purchased from MCE (New Jersey, USA). Human or mouse PBMC separation medium were obtained from Solarbio (Beijing, China).
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3

Malvidin and MTT Assay Protocol

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Malvidin (Mv) and 3‐(4,5‐dimethylthiazol‐2yl‐)‐2,5‐diphenyl tetrazolium bromide (MTT) were bought from Sigma. Fetal bovine serum (FBS) and Dulbecco's modified Eagle's medium (DMEM) were bought from GIBCO. Bicinchoninic acid (BCA), Malondialdehyde (MDA), Superoxide dismutase (SOD), reduced glutathione (GSH)/oxidized glutathione disulfide (GSSG), and lactate dehydrogenase (LDH) assay kits were bought from Jiancheng Bioengineering Institute (Nanjing, China). Hoechst 33258 dye and 2′,7′‐dichlorofluorescin diacetate (DCFH‐DA) detection kit were bought from Beyotime Institute of Biotechnology (Haimeng, China). Annexin V/PI apoptosis kit was bought from MultiSciences Biotech Co., Ltd. The Electro‐Chemi‐Luminescence (ECL) chemiluminescence reagent was bought from Pierce Biotechnology Inc. All the reagents or chemicals were in analytical grade.
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4

Ginsenoside Rb3 Bioactivity Assessment

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Ginsenoside Rb3 with high purity (> 98 %) was purchased from ChemFaces Biochemical Co., Ltd. (Wuhan, China). Ultrapure water was obtained from a Milli-Q purification system (Milford, MA, USA). Methyl thiazolyl tetrazolium (MTT) was purchased from Amersco (Washington, USA). N-acetyl-L-cysteine (NAC) was obtained from Sigma-Aldrich (St. Louis, MO, USA). Lactate dehydrogenase (LDH) assay kits (A020-2-2) were obtained from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). Brain natriuretic peptide (BNP) kit (JEB-12888), high-sensitivity C-reactive protein (hs-CRP) kit (JEB-12578), tumor necrosis factor-α (TNF-α) kit (JEB-12474), malondialdehyde (MDA) kit (JEB-12601), and nitric oxide (NO) assay kit (JEB-12547) were obtained from Nanjing Jin Yibai Biological Technology Co. Ltd.
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5

Cardioprotective Effects of YQFM

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YQFM was donated by Tasly Pride Pharmaceutical Company Limited. Lactate dehydrogenase (LDH) assay kit, rat cardiac troponin-T (cTnT) and creatine kinase isoenzyme-MB (CK-MB) ELISA kits were obtained from Nanjing Jiancheng Bioengineer Institute. Antibodies against cleaved cTnT, Bax, Bcl-2, PGC-1α, PPAR-α, RXR-α, Tfam and NRF-1 and secondary anti-rabbit antibodies were purchased from Abcam, (Cambridge, United Kingdom). Hydrogen peroxide (H2O2, Aladdin®, 700 μmol/L).
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6

Neurochemical Markers Analysis Protocol

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3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and corticosterone were purchased from Sigma (St. Louis, MO, USA). Dulbecco’s Modified Eagle culture medium (DMEM), fetal bovine serum (FBS), heat-inactivated horse serum, penicillin, and streptomycin were purchased from Gibco (Grand Island, NY, USA). Lactate dehydrogenase (LDH) assay kit was purchased from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). Antibodies against Phospholipase A2 IIA (PLA2), calcium/calmodulin-dependent protein kinase II (CaMK II), pro-caspase-3, BDNF, and GAPDH were supplied by Epitomics (Epitomics Inc., Burlingame, USA). High Performance Liquid Chromatography (HPLC) grade dimethyl sulfoxide (DMSO), acetonitrile, and methanol were purchased from Fisher (New Jersey, USA). HPLC-grade formic acid was purchased from Tedia (Fairield, USA). Ultrapure water (18.2 MΩ) was prepared with a Milli-Q water purification system (Millipore, France). All other chemicals and reagents were of analytical grade.
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7

BSHX Granules and AGEs Effects

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BSHX granules were purchased from Beijing Kangrentang Pharmaceutical Co. Ltd. (Beijing, China). The medicinal components of BSHX are listed in Table 1. AGEs were purchased from Beijing Biosynthesis Biotechnology Co. Ltd. (Beijing, China) with a purity greater than 95% by high-performance liquid chromatography (HPLC). Antibodies against cleaved caspase-3, Bim, Histone H3, FoxO1, FoxO3a, α-Tubulin, and rabbit IgG were obtained from Cell Signaling Technology (Boston, MA, USA). 3-(4,5-Dimethylthiazol-2-yl)2,5-diphenyltetrazolium bromide (MTT) was bought from Sigma-Aldrich Chemical Co. (Saint Louis, MO, USA). The Dulbecco's modified eagle's medium (DMEM) and fetal bovine serum (FBS) were purchased from PAN-Biotech GmbH (Aidenbach, Germany). The endothelial cell medium (ECM) was obtained from Beijing M&C Gene Technology Ltd. (Beijing, China). The lactate dehydrogenase (LDH) assay kit was purchased from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). Hoechst 33258 was obtained from Beijing Solarbio Science & Technology Co. Ltd. (Beijing, China). The enhanced BCA protein assay kit was obtained from Beijing TransGen Biotech Co. Ltd. (Beijing, China).
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8

Serum Biomarker Analysis in Reperfusion

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Blood was taken 4 h after reperfusion, and the serum was separated by centrifugation at 7,500 rpm for 15 min, and immediately detected or temporarily frozen at −80°C. Serum TnI concentration was measured using an enzyme-linked immunosorbent assay (ELISA) measurement of Troponin I kit (Elabscience, E-EL-M0086c). Serum LDH activity was measured using a Lactate dehydrogenase (LDH) assay kit (Nanjing jiancheng, China). Serum creatine kinase-MB (CK-MB) was measured with a creatine kinase MB isoenzyme Assay Kit (Nanjing jiancheng, China).
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9

Cardiac Injury Evaluation in Rats

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Sprague-Dawley rats were obtained from the Experimental Animal Center, Chinese PLA General Hospital (Peking, China). H9c2 cell line was purchased from the Culture Collections of the Chinese Academy of Science. Dulbecco's Modified Eagle Medium (DMEM) and fetal Bovine Serum (FBS) were purchased from Gibco (Grand Island, NY). Recombinant human CRT (13539-H08H) was obtained from Sino Biological Inc. (Peking, China). LIVE/DEAD Viability/Cytotoxicity Kit for mammalian cells was purchased from Invitrogen (Carlsbad, Calif). Rat troponin T (TnT) enzyme-linked immunosorbent assay kit, Lactate dehydrogenase (LDH) assay kit, and Malonaldehyde (MDA) assay kit were purchased from Nanjing Jian Cheng Bioengineering Institute (Nanjing, China). Reactive Oxygen Species (ROS) Assay Kit was bought from Beyotime Institute of Biotechnology (Peking, China). mRFP-GFP-LC3 adenovirus was purchased from Hanbio Biotechnology Co., Ltd. (Shanghai, China). Primary antibodies against p62, LC3, Beclin1, LAMP-2, and GAPDH were purchased from Cell Signaling Technology (Danvers, Mass).
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10

Synergistic Evaluation of Dasatinib and Doxorubicin

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Dasatinib was purchased from Selleck Chemicals. A 40 mM solution was prepared in dimethyl sulfoxide and stored at −20°C until use. Doxorubicin (DOX), specific caspase-3 inhibitor Z-DEVD-FMK (zDEVD) and pan-caspase inhibitor Z-VAD (OMe)-FMK (zVAD) were obtained from MedChemExpress. Cell counting kit-8 (CCK-8) was purchased from Bimake. Annexin V-propidium iodide (PI) apoptosis kit was purchased from Beijing 4A Biotech Co., Ltd. Lactate dehydrogenase (LDH) assay kit was obtained from Nanjing Jiancheng Bioengineering Institute.
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