Free Shipping on orders over 50$

British Pound Sterling - GBP Euro - EUR US Dollar - USD (EUR)

Welcom to Gentaur Biotech Products!

ELISA Kit for Tumor Necrosis Factor Alpha (TNFa) Organism: Rhesus monkey (Simian)

Be the first to review this product

Availability: In stock


Quick Overview

[#E90133Si] ELISA Kit for Tumor Necrosis Factor Alpha (TNFa) Organism: Rhesus monkey (Simian)


E90133Si | ELISA Kit for Tumor Necrosis Factor Alpha (TNFa) Organism: Rhesus monkey (Simian), 96T
More informations about ELISA Kit for Tumor Necrosis Factor Alpha (TNFa) Organism: Rhesus monkey (Simian) in

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

(1) Puerarin prevents vascular endothelial injury through suppression of NF-κB activation in LPS-challenged human umbilical vein endothelial cells.[TOP]

Pubmed ID :29775893
Publication Date : //
In the present study, we aimed to explore the effects of puerarin on vascular endothelial cell injury induced by lipopolysaccharide (LPS) and its underlying mechanisms.

Authors : Deng Hua-Fei, Wang Sha, Li Lian, Zhou Qin, Guo Wan-Bei, Wang Xiao-Li, Liu Mei-Dong, Liu Ke, Xiao Xian-Zhong,

(2) Ptprj-as1 mediates inflammatory injury after intracerebral hemorrhage by activating NF-κB pathway.[TOP]

Pubmed ID :29771434
Publication Date : //
We aimed at investigating the expression of long non-coding RNA (lncRNA) Ptprj-as1 and the role of lncRNAPtprj-as1 in inflammatory cells after intracerebral hemorrhage and its potential mechanism.

Authors : Wen J, Yang C-Y, Lu J, Wang X-Y,

(3) Peritoneal dialysis effectively removes toxic substances and improves liver functions of liver failure patients.[TOP]

Pubmed ID :29762845
Publication Date : //
Liver failure (LF) is a clinically complex disorder that characterizes with hepatic dysfunction. This study aimed at observing the therapeutic effects of peritoneal dialysis on liver function in LF patients.

Authors : Zhao W-X, Liu X-M, Yu C-M, Xu H, Dai J-R, Chen H-Y, Li L, Chen F, Ou Y-L, Zhao Z-K,

(4) Osteonectin as a screening marker for pancreatic cancer: A prospective study.[TOP]

Pubmed ID :29756486
Publication Date : //
Objective Osteonectin plays a central role in various processes during the development of pancreatic adenocarcinoma. This prospective pilot study was performed to determine the feasibility of serum osteonectin as a screening tool for pancreatic cancer. Methods Blood samples were collected from 15 consecutive patients with newly diagnosed pancreatic cancer and 30 matched healthy controls. Serum osteonectin was measured using an osteonectin enzyme-linked immunosorbent assay kit. The primary outcomes were the diagnostic performance of serum osteonectin and the threshold value for differentiation of patients from controls. Results The median/quartile range of serum osteonectin in patients and controls were 306.8/288.5 ng/mL and 67.5/39.8 ng/mL, respectively. Osteonectin concentrations significantly differed among the study groups. A plasma osteonectin concentration of >100.18 ng/mL as selected by the receiver operating characteristic curves demonstrated an estimated area under the curve of 86% for prediction of pancreatic cancer. Tumour size was a significant predictor of serum osteonectin. A statistically significant difference in serum osteonectin between T1/T2 and T3/T4 tumours was found. Post-hoc comparisons revealed statistically significant differences in the serum osteonectin among the control, T1/T2, and T3/T4 groups. Conclusion Osteonectin may be used as a screening tool for pancreatic cancer, although this must be validated in prospective studies.

Authors : Papapanagiotou Angeliki, Sgourakis George, Karkoulias Kyriakos, Raptis Dimitris, Parkin Edward, Brotzakis Pantelis, Panchal Sanjay, Papavassiliou Athanasios G,

(5) MicroRNA-92a promotes tumor growth and suppresses immune function through activation of MAPK/ERK signaling pathway by inhibiting PTEN in mice bearing U14 cervical cancer.[TOP]

Pubmed ID :29752775
Publication Date : //
Cervical cancer is known as the possible outcome of genital infection, while the molecular mechanisms of initiation, development, and metastasis of cervical cancer have not yet been fully elucidated. Our study aims to investigate the effects of microRNA-92a (miR-92a) on tumor growth and immune function by targeting PTEN via the MAPK/ERK signaling pathway in tumor-bearing mice. C57BL/6 female mice were used for tumor-bearing mouse models and their tumor and adjacent normal tissues were collected, and normal cervical tissues were obtained from normal mice. Serum levels of tumor necrosis factor-α (TNF-α) and soluble interleukin-2 receptor (sIL-2R) were detected by ELISA. The cells were divided into the normal, blank, negative control (NC), miR-92a mimic, miR-92a inhibitor, siRNA-PTEN, and miR-92a inhibitor + siRNA-PTEN groups. Dual-luciferase reporter assay was adopted to determine the relationship between PTEN and miR-92a. Expressions of miR-92a, PTEN, TNF-α, sIL-2R, ERK1, and ERK2 were tested by RT-qPCR and Western blotting. Cell proliferation was detected by cell count kit-8 (CCK-8); cell cycle and apoptosis were detected by flow cytometry. Compared with the normal cervical tissues and adjacent normal tissues, the cervical cancer tissues exhibited increased expressions of miR-92a, p-ERK1/2, and serum levels of TNF-α and sIL-2R while decreased PTEN expression. PTEN was confirmed to be the target gene of miR-92a. As compared with the blank and NC groups, expressions of miR-92a, ERK1 and ERK2 increased, and expressions of PTEN decreased in the miR-92a mimic group. The miR-92a mimic group exhibited increased expression levels of TNF-α and sIL-2R, cell proliferation, and cell number in S phase but decreased cell apoptosis, and cell number in G0/G1 phase, while the miR-92a inhibitor group followed opposite trends. miR-92a promotes tumor growth and suppresses immune function by inhibiting PTEN via activation of the MAPK/ERK signaling pathway in mice bearing U14 cervical cancer.

Authors : Li Zeng-Hui, Li Lei, Kang Lin-Ping, Wang Yan,

(6) Detection of early-stage extrahepatic cholangiocarcinoma in patients with biliary strictures by soluble B7-H4 in the bile.[TOP]

Pubmed ID :29736314
Publication Date : //
Increasing evidence has demonstrated that serum soluble B7-H4 (sB7-H4) is a useful tumour marker for cancer diagnosis and prognosis evaluation. Whether sB7-H4 is expressed in the bile of cholangiocarcinoma (CC) and is related to the progression of CC need to be explored. Bile sB7-H4 was obtained through endoscopic retrograde cholangiopancreatography (ERCP) from 213 patients with biliary strictures and detected was detected by a B7-H4 ELISA kit. Diagnostic value was compared among bile sB7-H4, CA19-9, CA12-5, CEA and ERCP-based cytological/tissue examination. Additionally, the correlations between the bile sB7-H4 concentration and the clinical characteristics of early-stage cholangiocarcinoma (ESCC) were studied. The bile sB7-H4 levels of patients with ESCC were significantly higher than in patients with benign biliary strictures (BBS) (<0.001). The receiver operating characteristic (ROC) curves of CA19-9, CA12-5 and CEA were 0.713, 0.554 and 0.451, respectively, were significantly lower than the ROC curves of bile sB7-H4 (0.837), the sensitivity of ERCP-based cytological/tissue examination was 57.5% and 68.4%, which was lower than that of bile sB7-H4 (81.7%) at cut-off value. A high level of bile sB7-H4 in patients with ESCC was found to be correlated with vascular invasion (<0.001), lymph node metastasis (<0.001) and TNM stage (=0.018), respectively. The overall survival rate (OS) of ESCC patients in the high sB7-H4 group was significantly lower than the OS of patients in the low sB7-H4 group (=0.009). Bile sB7-H4 could serve as a valuable biomarker for patients with ESCC and high levels of bile sB7-H4 correlate with poor clinical outcomes.

Authors : Ke Wenbo, Zeng Li, Hu Yunbi, Chen Sisi, Tian Min, Hu Qinggang,

(7) Protective effect and mechanism of ginsenoside Rg1 in cerebral ischaemia-reperfusion injury in mice.[TOP]

Pubmed ID :29710487
Publication Date : //
Ginsenoside Rg1 is regarded as one of main bioactive compounds responsible for pharmaceutical actions of ginseng with little toxicity and has been shown to have possibly neuroprotective effects. However, the mechanism of its neuroprotection for acute ischemic stroke is still elusive. The purpose of present study is thus to assess the neuroprotective effects of the ginsenoside Rg1 against neurological injury in a mice model of cerebral ischemia/reperfusion (I/R), and then to explore the mechanisms for these neuroprotective effects.

Authors : Wang Le, Zhao Hong, Zhai Zhen-Zhen, Qu Li-Xin,

(8) The therapeutic effect of artesunate on rosacea through the inhibition of the JAK/STAT signaling pathway.[TOP]

Pubmed ID :29693177
Publication Date : //
Acne rosacea is a type of chronic dermatosis with the characteristics of erubescence, angiotelectasis and pustule formation. However, current treatment methods are limited due to the side effects. Artesunate demonstrated a promising therapeutic efficacy with a high safety margin. HaCaT cells were treated with antibacterial peptide LL‑37 to simulate rosacea caused by Demodex folliculorum (D. folliculorum) infection. Cell Counting kit 8 and flow cytometry assays were performed to measure cellular proliferation, apoptosis, the stage of the cell cycle and reactive oxygen species generation in order to determine the level of cell damage. Then the damaged cells were treated with different concentrations of artesunate and doxycycline to determine the therapeutic effect of artesunate. Pro‑inflammatory cytokines tumor necrosis factor‑α (TNF‑α), interleukin (IL)‑6, IL‑8 and C‑C motif chemokine 2 (MCP‑1) were measured using an ELISA, while western blotting was used to detect the expression of Janus kinase 2 (JAK2) and signal transducer and transcription activator (STAT3). As a result, LL‑37 treated HaCaT cells decreased in cell viability, had an increased apoptotic rate and cell cycle arrest, indicating that cell damage caused by rosacea was simulated. In addition, upregulated concentrations of the pro‑inflammatory cytokines TNF‑α, IL‑6, IL‑8 and MCP‑1 were attenuated in the artesunate group in a dose‑dependent fashion, indicating the therapeutic effect of artesunate. Furthermore, higher concentrations of artesunate exhibited an improved effect compared with the doxycycline group. In addition, increased expression levels of JAK2 and STAT3 following treatment with LL‑37 suggested that rosacea caused by D. folliculorum infection may lead to inflammation through the JAK/STAT signaling pathway. In conclusion, the potential mechanism by which damage occurs in rosacea was revealed and a promising therapeutic method against rosacea was demonstrated.

Authors : Li Ting, Zeng Qingwen, Chen Xingming, Wang Guojiang, Zhang Haiqing, Yu Aihua, Wang Hairui, Hu Yang,

(9) Status of cathelicidin IL-37, cytokine TNF, and vitamin D in patients with pulmonary tuberculosis.[TOP]

Pubmed ID :29685013
Publication Date : //
Development of Mycobacterium tuberculosis (Mtb) infection depends on the ability of the host to elicit the protective immune response to the pathogen. Cathelicidin plays a role in antibacterial innate immunity mechanisms. This peptide contributes to the barrier function of respiratory epithelium and takes part in controlling pulmonary bacterial infections. LL-37 (leucine-leucine-37) is involved in host defense and innate immune response to mycobacterial infections, as well. This study aims to evaluate the serum concentrations of LL-37 in individuals with active pulmonary tuberculosis (TB) and to determine whether any correlations between peptide LL-37, tumor necrosis factor (TNF) and vitamin D serum levels exist. A total of 46 adults with pulmonary TB were recruited for the study. Sixty-one controls were randomly selected as control group. Serum concentrations of cathelicidin LL-37, vitamin D (25(OH)D), as well as TNF, were measured using an enzyme-linked immunosorbent assay (ELISA) kit. The mean (± SEM) level of LL-37 was significantly higher in the TB group (7.45±1.58) compared with healthy controls (1.41±0.22) (p less than 0.001). Mean serum concentration of TNF was significantly higher in the TB group (8.51±1.92) compared with healthy controls (2.69±0.19) (p less than 0.001). There was no significant difference in mean serum levels of vitamin D between healthy (26.10±1.74) and TB subjects (24.18±1.95). No correlations between LL-37, TNF, and vitamin D levels in patients with TB were observed. Our results indicated that serum levels of peptide LL-37 during TB is raised significantly, and this observation is compatible with the general view of the important role of this cathelicidin in defense mechanisms against Mtb infection.

Authors : Majewski K, Agier J, Kozłowska E, Brzezińska-Błaszczyk E,

(10) Effects of tumor-associated macrophages on the proliferation and migration of esophageal cancer-associated lymphatic endothelial cells.[TOP]

Pubmed ID :29684998
Publication Date : //
The aim of this study was to explore whether M2 macrophages can be transformed into M1 macrophages, and to investigate the effect of different types of macrophages on the proliferation, migration and ring-forming ability of esophageal cancer-related lymphatic endothelial cell (LEC). Human monocytic leukemia cell line (THP-1 cell) was induced to differentiate to M1 macrophages (M1 group) and M2 macrophages (M2 group), and co-cultured with esophageal cancer-associated LEC. The individual esophageal cancer co-cultured with LEC was used as control. Different types of macrophages were observed by Cell counting kit-8 (CCK-8). Enzyme-linked immunosorbent assay (ELISA) was used to detect the VEGF-C concentration; the expression of VEGFR-3 protein and its mRNA was detected by Western blot and qRT-PCR, respectively. The positive rate of the M1 group induced by IFN-γ and LPS was significantly higher than that of M2 macrophages (48.57%5.98% vs 25.83%1.95%). The expression of VEGF-C in the supernatant of the M2 group was higher than that in the control group, but no significant differences regarding the expression of VEGF-C between M1 and control groups were found. In addition, the expression of VEGFR-3 on both mRNA and protein in esophageal cancer-related LEC of the M2 group was significantly higher than those in the control group; however, the M1 group had a significantly lower VEGFR-3 level on both mRNA and protein than the control group. Human M2 macrophages can be transformed into M1 macrophages, and can promote the proliferation, migration and ring-forming ability of esophageal cancer-associated LEC.

Authors : Chen J Y, He L I, Zhang H X, Sun M M, Chen K S,