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Rosa Martha Perez Gutierrez, Jose Maria Mota Flores
OBJECTIVE: To examine the effect of metanol extract of Petiveria alliacea (PM) on airway inflammation in a murine model of chronic asthma. METHODS: Two-month-old male BALB/c mice (n=6-8/group) were sensitized on days 0 and 14 by intraperitoneal injection of 20 μg ovalbumin (OVA). On day 25, the mice received an airway challenge with OVA (3%, w/v, in phosphate buffered saline). PM was administered orally by oral gavage to mice at doses of 100, 200 and 400 mg/kg body weight once daily from days 18 to 23...
October 19, 2018: Chinese Journal of Integrative Medicine
Zhiqiang Chen, Jing Sun, Tao Li, Yanfeng Liu, Shang Gao, Xuting Zhi, Minhua Zheng
Di-2-pyridylketone-4,4-dimethyl-3-thiosemicarbazone (Dp44mT), as the novel iron chelator, has been reported to inhibit the tumorigenesis and progression of various cancer cells. However, whether Dp44mT has anticancer effects in colon cancer cells is still unknown. Here, we investigated the antitumor action of Dp44mT in colon cancer and its underlying mechanisms, and the connections between Dp44mT and N-myc downstream-regulated genes 1(Ndrg1). We used cell viability, migration and invasion assay, flow cytometry, western blot and qRT-PCR to examine the anticancer effects of Dp44mT and Ndrg1...
October 16, 2018: Biochemical and Biophysical Research Communications
Hanna Aula, Tanja Skyttä, Suvi Tuohinen, Tiina Luukkaala, Mari Hämäläinen, Vesa Virtanen, Pekka Raatikainen, Eeva Moilanen, Pirkko-Liisa Kellokumpu-Lehtinen
BACKGROUND: Radiation-induced heart disease is mainly caused by activation of the fibrotic process. Transforming growth factor-beta 1 (TGF-β1) and platelet-derived growth factor (PDGF) are pro-fibrotic mediators. The aim of our study was to evaluate the behavior of TGF-β1 and PDGF during adjuvant radiotherapy (RT) for breast cancer and the association of these cytokines with echocardiographic changes. METHODS: Our study included 73 women with early-stage breast cancer or ductal carcinoma in situ (DCIS) receiving post-operative RT but not chemotherapy...
October 19, 2018: Radiation Oncology
Chen Huang, Lin Feng, Wei-Dan Jiang, Pei Wu, Yang Liu, Yun-Yun Zeng, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Xiao-Qiu Zhou
Deoxynivalenol (DON) is one of the most common mycotoxins in animal feed worldwide and causes significant threats to the animal production. The intestine is an important mucosal immune organ in teleost, and it is also the first target for feed-borne toxicants in animal. However, studies concerning the effect of DON on fish intestine are scarce. This study explored the effects of DON on intestinal immune function in juvenile grass carp (Ctenopharyngodon idella). A total of 1440 juvenile grass carp (12.17 ± 0...
October 16, 2018: Fish & Shellfish Immunology
W-D Wang, B-Z Cheng, W-B Kang, R-W Zheng, Y-L Cai, X-J Wang
OBJECTIVE: The occurrence rate of delayed fracture healing in diabetes mellitus patients is high. Transforming growth factor β1 (TGF-β1) is an important regulatory factor in bone tissue repair and regeneration. However, TGF-β1 expression and its function in diabetic patient fracture have not been fully elucidated. PATIENTS AND METHODS: Type 2 diabetes fracture patients (T2DM group), fracture patients without diabetes (non-T2DM group), and healthy volunteers (Control group) were selected for the research...
January 2018: European Review for Medical and Pharmacological Sciences
Marco Hatem-Vaquero, Sergio de Frutos, Alicia Luengo, Alba González Abajo, Mercedes Griera, Manuel Rodríguez-Puyol, Diego Rodríguez-Puyol, Laura Calleros
BACKGROUND: Patients with chronic kidney disease present with an accumulation of uraemic toxins, which have been identified as pathogenic agents associated with cardiovascular mortality, which is very high is this patient group. A phenomenon common to the progressive renal dysfunction and associated vascular damage, is the abnormal accumulation of extracellular matrix (ECM) proteins in the renal or vascular structures. OBJECTIVE: To determine the contribution of uraemia or the uraemic toxins to the production of cytokinins and ECM in aortas of uraemic animals or human aortic smooth muscle cells (HASMCs)...
October 15, 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
Xia Liu, Qing Li, Jing Zhou, Su Zhang
Ovarian cancer (OC) has the highest fatality rates of all gynecological malignancies worldwide. The epithelial-to-mesenchymal transition (EMT) serves an essential role in the progression of OC. An improved understanding of the molecular mechanism underlying EMT in OC may increase the survival rate. ATP-binding cassette transporter A7 (ABCA7) is a candidate regulator of OC progression. However, the role of ABCA7 in OC is unclear. Using the PROGgeneV2 platform, the present study revealed that increased expression of ABCA7 is associated with poor outcomes in OC...
November 2018: Oncology Letters
Shigeyuki Mukudai, Nao Hiwatashi, Renjie Bing, Michael Garabedian, Ryan C Branski
OBJECTIVES/HYPOTHESIS: Direct glucocorticoid (GC) injection for vocal fold (VF) scarring has evolved as a therapeutic strategy, but the mechanisms underlying the antifibrotic effects remain unclear. GCs act via the glucocorticoid receptor (GR), which is phosphorylated at multiple serine residues in a hormone-dependent manner to affect bioactivity. We hypothesize that GCs regulate SMAD signaling via GR phosphorylation in vocal fold fibroblasts (VFFs). STUDY DESIGN: In vitro...
October 16, 2018: Laryngoscope
Safendra Siregar, Reni Farenia, Suwandi Sugandi, Rully M Roesli
Introduction: Urethral stricture is a disease with a high recurrence rate. Angiotensin II via AT1 receptor increases collagen formation through its effects on TGF-β1 and inhibition of collagenase activity. In this study, we evaluated the antifibrotic effect of angiotensin II receptor blocker on urethral stricture formation by creating a urethral stricture model in a male rabbit. Material and methods: Thirty three male adult rabbits were separated into 3 groups (control, treatment, and sham)...
2018: Research and Reports in Urology
Yohei Otsuka, Eri Watanabe, Eiji Shinya, Sadayuki Okura, Hidehisa Saeki, Teunis B H Geijtenbeek, Hidemi Takahashi
Human mucosal tissues and skin contain two distinct types of dendritic cell (DC) subsets, epidermal Langerhans cells (LCs) and dermal DCs, which can be distinguished by the expression of C-type lectin receptors, Langerin and DC-SIGN, respectively. Although peripheral blood monocytes differentiate into these distinct subsets, monocyte-derived LCs (moLCs) induced by coculture with GM-CSF, IL-4, and TGF-β1 coexpress both Langerin and DC-SIGN, suggesting that the environmental cues remain unclear. In this study, we show that LC differentiation is TGF-β1 dependent and that cofactors such as IL-4 and TNF-α promote TGF-β1-dependent LC differentiation into Langerin+ DC-SIGN- moLCs but continuous exposure to IL-4 blocks differentiation...
October 15, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Zhengzheng Liu, Weilu Kuang, Qin Zhou, Yingying Zhang
The positive correlation between the number of M2 phenotype TAMs (M2‑TAMs) and tumour development suggests a supportive role of M2‑TAMs in glioma progression. In the present study, the molecular link between glioma cells and M2‑TAMs was investigated and it was demonstrated that transforming growth factor‑β1 (TGF‑β1) secreted by M2‑TAMs is key in facilitating the stemness and migration of glioma cells. Cluster of differentiation (CD)133 and CD44, markers for the M2 phenotype, were assessed by western blotting...
October 9, 2018: International Journal of Molecular Medicine
B F Zhang, M L Cheng, Y P Wang, Q Zhang, L Yu, X K Zhao, M Mu, Y Liu
Objective: To observe the effects of blueberry and nuclear expression of transcription factor-кb (NF-кb) p65 in an experimental rat model of liver fibrosis. Methods: Forty-five Sprague-Dawley rats were randomly divided into isotonic saline control group (A); model group (B); blueberry juice prevention group (C, 15 g/kg); dan-shao-hua-xian capsule prevention group (D, 1 g/kg); and blueberry juice + dan-shao-hua-xian capsule prevention group (E). Rat liver fibrosis model was established by covalent compound carbon tetrachloride (CCl(4))...
August 20, 2018: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
Masato Ogura, Haruhisa Kikuchi, Norshalena Shakespear, Toshiyuki Suzuki, Junko Yamaki, Miwako K Homma, Yoshiteru Oshima, Yoshimi Homma
The development of neuroprotective agents is necessary for the treatment of neurodegenerative diseases. Here, we report PQA-11, a prenylated quinolinecarboxylic acid (PQA) derivative, as a potent neuroprotectant. PQA-11 inhibits glutamate-induced cell death and caspase-3 activation in hippocampal cultures, as well as inhibits N-Methyl-4-phenylpyridinium iodide- and amyloid β1-42 -induced cell death in SH-SY5Y cells. PQA-11 also suppresses mitogen-activated protein kinase kinase 4 (MKK4) and c-jun N-terminal kinase (JNK) signaling activated by these neurotoxins...
October 11, 2018: Biochemical Pharmacology
Qiu-Yue Tan, Zhen-Shun Cheng
BACKGROUNDS/AIMS: Epithelial-to-mesenchymal transition (EMT) has been proven to be involved in development and progression of pulmonary fibrosis. This study aims to investigate the role of transforming growth factor β1 (TGFβ1)-smad signaling pathway in the interleukin-33 (IL-33) induced EMT. METHODS: The human type II alveolar epithelial cell line, A549, and small airway epithelial cells (SAEC) were cultured and divided into 4 groups including Control, LY-2109761 (TGFβ receptor inhibitor), IL-33 and IL-33+LY-2109761 group...
October 11, 2018: Cellular Physiology and Biochemistry
Yosra M Magdy, Omnyah A El-Kharashi, Dalia A A El-Waseef, Enas S Nabih, Abeer A Abd El Samad
OBJECTIVES: The repression of renal Farnesoid X Receptor (FXR) had been shown to result from lack of bile acid production from cirrhotic liver. We hypothesized that silymarin and rosuvastatin (Rvs) could have a hepatorenal therapeutic effects in hepatic nephropathy through induction of FXR. METHODS: Forty two male Wistar rats were used; naïve (n = 12); six of them were sacrificed after 4 weeks and six continued till the end of the experiment. Thirty rats were treated as follows: Rvs, silymarin, thioacetamide (TAA), TAA + Rvs and TAA + silymarin...
October 9, 2018: Experimental and Molecular Pathology
Somayeh Solhjoo, Mohammad Akbari, Heidar Toolee, Keywan Mortezaee, Mahshid Mohammadipour, Seyed Noureddin Nematollahi-Mahani, Amene Shahrokhi, Mahtab Sayadi, Tayebeh Rastegar
Spermatogonial cells (SCs) are key cells for spermatogenesis. These cells are affected by paracrine signals originated from nearby somatic cells, among them Leydig cells have receptors for osteocalcin, a hormone known for exerting positive roles in the promotion of spermatogenesis. The aim of this study was to evaluate roles for osteocalcin on SCs proliferative and differentiation features after coculture with Leydig cells. SCs and Leydig cells were isolated from neonate NMRI offspring mice and adult NMRI mice, respectively...
October 9, 2018: Journal of Cellular Biochemistry
Wenxian Hu, Zhaowei Wang, Qiang Li, Jinjun Wang, Lin Li, Guixi Jiang
OBJECTIVE: Long intergenic noncoding RNA-p21 (lincRNA-p21) has been proved in the pathogenesis of aortic aneurysms, while its functionality in thoracic aortic aneurysms (TAA) and the mechanism of function remains unclear. Therefore our study aimed to investigate the role of lincRNA-p21 in TAA. METHODS: Aortic media specimens and blood samples were collected from both patients with TAA and healthy controls. Expression of lincRNA-p21 in those tissues was detected by reverse-transcription quantitative polymerase chain reaction (qRT-PCR)...
October 9, 2018: Journal of Cellular Biochemistry
Guangsheng Cai, Kun Wang, Na Qu, Pengyu Qiu, Jason Z Vlahakis, Walter A Szarek, Robert J Lee, Yin Gao
Galactosyltransferases are a family of enzymes responsible for the synthesis of glycan chains which are involved in cell proliferation, adhesion and apoptosis. A recently synthesized galactosyltransferase inhibitor, 2-naphthyl 2-butanamido-2-deoxy-1-thio-β-D-glucopyranoside (612), has been found to selectively inhibit β1,4-galactosyltransferase over β1,3-galactosyltransferase and, therefore, has potential to suppress the synthesis of cancer associated epitopes. However, the application of this inhibitory activity in biological systems remains unknown...
October 6, 2018: International Journal of Pharmaceutics
Yong Joo Park, Seoung Rak Lee, Dong Min Kim, Jae Sik Yu, Christine Beemelmanns, Kyu Hyuck Chung, Ki Hyun Kim
Pulmonary fibrosis (PF) is a chronic and fatal lung disease with few treatment options. Although the pathogenesis of PF is not clear, a chronic inflammatory response to continuous damage is considered the cause of pulmonary fibrosis. PF is characterized by excessive accumulation of extracellular matrix (ECM), therefore, inhibition of myofibroblast differentiation is a good therapeutic target for PF. As part of our continuing endeavor to explore biologically active metabolites from insect-associated microbes, we found that the MeOH extract of the culture broth from the entomopathogenic fungus Beauveria bassiana inhibited collagen induction and E -cadherin down-regulation...
October 8, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Hyun Kyung Park, Su Kang Kim, Sang Won Lee, Joo-Ho Chung, Byung-Cheol Lee, Sae Won Na, Chun Gun Park, Young Ock Kim
A recent study reported that Panax ginseng ( P . ginseng ) has a protective effect on the development of benign prostatic hyperplasia (BPH). KH053 is used as a new herbal prescription consisting of P . ginseng and bee-pollen. The present study aimed to investigate whether the KH053 has inhibition effects on the development of benign prostatic hyperplasia (BPH) using an animal model with testosterone induced BPH. The experiment was carried out in forty male Wistar 7 week old rats that were divided into four groups (control group, BPH group, positive group, and KH053 group)...
November 2017: Saudi Journal of Biological Sciences
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