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https://www.readbyqxmd.com/read/29147465/myricetin-possesses-potential-protective-effects-on-diabetic-cardiomyopathy-through-inhibiting-i%C3%AE%C2%BAb%C3%AE-nf%C3%AE%C2%BAb-and-enhancing-nrf2-ho-1
#1
Hai-Han Liao, Jin-Xiu Zhu, Hong Feng, Jian Ni, Nan Zhang, Si Chen, Huang-Jun Liu, Zheng Yang, Wei Deng, Qi-Zhu Tang
Diabetic cardiomyopathy (DCM) is associated with a greater risk of mortality in patients with diabetes mellitus. Currently, no specific treatment has been suggested for DCM treatment. This study demonstrated that myricetin (M) attenuated DCM-associated cardiac injury in mice subjected to streptozotocin (SZT) and in neonatal rat cardiomyocytes (NRCM) challenged with high glucose. In vivo investigation demonstrated 6 months of M treatment (200 mg/kg/d) significantly alleviated cardiac hypertrophy, apoptosis, and interstitial fibrosis...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29146504/minocycline-protects-developing-brain-against-ethanol-induced-damage
#2
Xin Wang, Kai Zhang, Fanmuyi Yang, Zhenhua Ren, Mei Xu, Jacqueline A Frank, Zun-Ji Ke, Jia Luo
Fetal alcohol spectrum disorders (FASD) are caused by ethanol exposure during the pregnancy and is the leading cause of mental retardation. Ethanol exposure during the development results in the loss of neurons in the developing brain, which may underlie many neurobehavioral deficits associated with FASD. It is important to understand the mechanisms underlying ethanol-induced neuronal loss and develop appropriate therapeutic strategies. One of the potential mechanisms involves neuroimmune activation. Using a third trimester equivalent mouse model of ethanol exposure, we demonstrated that ethanol induced a wide-spread neuroapoptosis, microglial activation, and neuroinflammation in C57BL/6 mice...
November 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29145717/ctrp9-regulates-growth-differentiation-and-apoptosis-in-human-keratinocytes-through-tgf%C3%AE-1-p38-dependent-pathway
#3
Tae Woo Jung, Hyung Sub Park, Geum Hee Choi, Daehwan Kim, Taeseung Lee
Impairment of wound healing is a common problem in individuals with diabetes. Adiponectin, an adipocyte-derived cytokine, has many beneficial effects on metabolic disorders such as diabetes, obesity, hypertension, and dyslipidemia. C1q/TNF-Related Protein 9 (CTRP9), the closest paralog of adiponectin, has been reported to have beneficial effects on wound healing. In the current study, we demonstrate that CTRP9 regulates growth, differentiation, and apoptosis of HaCaT human keratinocytes. We found that CTRP9 augmented expression of transforming growth factor beta 1 (TGFβ1) by transcription factor activator protein 1 (AP-1) binding activity and phosphorylation of p38 in a dosedependent manner...
November 16, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29145490/rnai-screen-reveals-a-role-of-sphk2-in-dengue-virus-mediated-apoptosis-in-hepatic-cell-lines
#4
Atthapan Morchang, Regina Ching Hua Lee, Pa-Thai Yenchitsomanus, Gopinathan Pillai Sreekanth, Sansanee Noisakran, Justin Jang Hann Chu, Thawornchai Limjindaporn
Hepatic dysfunction is a feature of dengue virus (DENV) infection. Hepatic biopsy specimens obtained from fatal cases of DENV infection show apoptosis, which relates to the pathogenesis of DENV infection. However, how DENV induced liver injury is not fully understood. In this study, we aim to identify the factors that influence cell death by employing an apoptosis-related siRNA library screening. Our results show the effect of 558 gene silencing on caspase 3-mediated apoptosis in DENV-infected Huh7 cells. The majority of genes that contributed to apoptosis were the apoptosis-related kinase enzymes...
2017: PloS One
https://www.readbyqxmd.com/read/29145450/enhanced-expression-of-cell-surface-b-cell-receptor-associated-protein-31-contributes-to-poor-survival-of-non-small-cell-lung-carcinoma-cells
#5
Se-Ri Seo, Hyun Min Lee, Hong Seo Choi, Won-Tae Kim, Eun-Wie Cho, Chun Jeih Ryu
B-cell receptor-associated protein 31 (BAP31) is an endoplasmic reticulum (ER) membrane protein which plays a role as a molecular chaperone for the newly synthesized transmembrane proteins. BAP31 is also an important apoptosis regulator for extrinsic apoptosis induction in the ER membrane. Recent studies have shown that BAP31 is also expressed on the surface of embryonic stem cells. However, the function of cell surface BAP31 (csBAP31) still remains unclarified. In an attempt to search for surface markers on tumorspheres, here, we generated monoclonal antibodies (MAbs) against the sphere cells from the non-small cell lung carcinoma cell (NSCLC) line A549...
2017: PloS One
https://www.readbyqxmd.com/read/29144987/benzo-a-pyren-7-8-dihydrodiol-9-10-epoxide-induces-human-trophoblast-swan-71-cell-dysfunctions-due-to-cell-apoptosis-through-disorder-of-mitochondrial-fission-fusion
#6
Weiping Wang, Rong Wang, Qiao Zhang, Gil Mor, Huidong Zhang
Benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide (BPDE) is an endocrine disrupter and ultimate carcinogenic product of benzo(a)pyrene (BaP). Numerous studies have shown that BPDE causes trophoblast-related diseases, such as preeclampsia, growth restriction or miscarriages. However, the underlying mechanism, especially the mitochondria-related BPDE-induced trophoblast dysfunction remains unknown. In this study, we examined mitochondrial functions in BPDE-induced human trophoblast cell line Swan 71. BPDE decreased cell ability, attenuated cell invasion and HCG secretion, induced cell apoptosis, decreased mitochondrial membrane potential, increased reactive oxygen species (ROS) and MDA, and decreased SOD activity in a dose-dependent manner...
November 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29144200/mechanisms-underlying-melatonin-mediated-prevention-of-fenvalerate-induced-behavioral-and-oxidative-toxicity-in-zebrafish
#7
Jingjing Han, Cheng Ji, Yichen Guo, Rui Yan, Ting Hong, Yuanyan Dou, Yan An, Shasha Tao, Fenju Qin, Jihua Nie, Chen Ji, Han Wang, Jian Tong, Wei Xiao, Jie Zhang
The neurotoxic effects attributed to the pesticide fenvalerate (FEN) are well-established. The aim of this study was to determine whether melatonin (MLT) was able to protect against FEN-induced behavior, oxidative stress, apoptosis, and neurogenesis using zebrafish (Danio rerio) model. Zebrafish exposed to 100 μg/L FEN for 120 h exhibited decreased swimming activity accompanied by downregulated expression of neurogenesis-related genes (Dlx2, Shha, Ngn1, Elavl3, and Gfap), suggesting that neurogenesis were impaired...
November 16, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29144016/what-is-the-protective-effect-of-metformin-on-rat-ovary-against-ischemia-reperfusion-injury
#8
Cemile Dayangan Sayan, Gokhan Karaca, Zehra Sema Ozkan, Ozlem B Tulmac, Aslı Ceylan Isik, Tuba Devrim, Gülcin Aydin, Ilkin Yeral
AIM: The aim of this study was to investigate the protective effect of metformin on the rat ovary against ischemia-reperfusion injury. METHODS: Thirty-seven female Wistar albino rats were used in the study. The rats were divided into five groups, as follows: sham operation group (group 1); torsion group (group 2); torsion/detorsion + saline group (group 3); torsion/detorsion + low-dose metformin group (group 4); and torsion/detorsion + high-dose metformin group (group 5)...
November 16, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29143998/oxytocin-mediates-the-beneficial-effects-of-the-exercise-training-on-breast-cancer
#9
Ali Mohammad Alizadeh, Zahra Heydari, Mostafa Rahimi, Behzad Bazgir, Hossein Shirvani, Sadaf Alipour, Yassaman Heidarian, Solmaz Khalighfard, Amin Isanejad
Exercise training can affect the breast tumor growth. We hypothesized that exercise training may reduce breast tumor growth by inducing Oxytocin (OT) secretion and its related signaling pathways such as PI3K/AKT and ERK. Therefore fifty-six BALB/c mice were equally divided into seven groups to study the effects of OT and atosiban (an oxytocin receptor antagonist) together with the interval exercise training on breast tumor growth, as well as tumor related signaling pathways including PI3K/AKT and ERK. Animal weight, OT plasma level, tumor weight and volume measured at the end of study...
November 16, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29142606/hesperidin-inhibits-ovarian-cancer-cell-viability-through-endoplasmic-reticulum-stress-signaling-pathways
#10
Jun Zhao, Yali Li, Jinfang Gao, Yinshan De
Hesperidin is a vitamin P flavonoid compound primarily present in citrus fruits. The aim of the present study was to investigate whether hesperidin inhibits ovarian cancer cell viability via endoplasmic reticulum stress signaling pathways. A2780 cells were treated with various doses of hesperidin for 6, 12 or 24 h, and the viability of A2780 cells was assessed using the MTT assay. Hesperidin decreased the viability of A2780 cells and increased cytotoxicity in a dose- and time-dependent manner. In addition, hesperidin induced apoptosis and increased cleaved caspase-3 protein expression levels in A2780 cells...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29142424/apoptotic-effect-of-nigella-sativa-on-human-lymphoma-u937-cells
#11
Belkis Atasever Arslan, Fatma Busra Isik, Hazal Gur, Fatih Ozen, Tunc Catal
Objective: Nigella sativa is from botanical Ranunculaceae family and commonly known as black seed. Apoptotic effect of N. sativa and its apoptotic signaling pathways on U937 lymphoma cells are unknown. Materials and Methods: In this study, we investigated selective cytotoxic and apoptotic effects of N. sativa extract and its apoptotic mechanisms on U937 cells. In addition, we also studied selective cytotoxic activity of thymoquinone that is the most active essential oil of N...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29142025/cardioprotection-of-dapagliflozin-and-vildagliptin-in-cardiac-reperfusion-injury-rats
#12
Pongpan Tanajak, Piangkwan Sa-Nguanmoo, Sivaporn Sivasinprasan, Savitree Thummasorn, Natthaphat Siri-Angkul, Siriporn Chattipakorn, Nipon Chattipakorn
Sodium-glucose cotransporter 2 inhibitor (SGLT2-i) effects on cardiac ischemia/reperfusion (I/R) injury are unclear. Unlike SGLT2-i, dipeptidyl peptidase 4 inhibitors (DPP4-i) have shown effective cardioprotection in cardiac I/R injury. We aimed to investigate whether SGLT2-i reduces myocardial dysfunction and myocardial injury to a greater extent than DPP4-i in obese-insulin resistant rats with/without cardiac I/R injury. The high fat (HF) diet induced obese-insulin resistant rats were divided into 4 groups and received the following treatments for 28 days: vehicle (HFV); vildagliptin at a dosage of 3 mg/kg/day (HFVil); dapagliflozin at a dosage of 1 mg/kg/day (HFDa); and combination drugs (HFDaVil)...
November 15, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/29141953/amyloid-%C3%AE-42-peptide-is-toxic-to-non-neural-cells-in-drosophila-yielding-a-characteristic-metabolite-profile-and-the-effect-can-be-suppressed-by-pi3k
#13
Mercedes Arnés, Sergio Casas-Tintó, Anders Malmendal, Alberto Ferrús
The human Aβ42 peptide is associated with Alzheimer's disease through its deleterious effects in neurons. Expressing the human peptide in adult Drosophila in a tissue- and time-controlled manner, we show that Aβ42 is also toxic in non-neural cells, neurosecretory and epithelial cell types in particular. This form of toxicity includes the aberrant signaling by Wingless morphogen leading to the eventual activation of Caspase 3. Preventing Caspase 3 activation by means of p53 keeps epithelial cells from elimination but maintains the Aβ42 toxicity yielding more severe deleterious effects to the organism...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/29141549/a-high-throughput-quantitative-expression-analysis-of-cancer-related-genes-in-human-hepg2-cells-in-response-to-limonene-a-potential-anticancer-agent
#14
Rand R Hafidh, Saba Z Hussein, Mohammed Q MalAllah, Ahmed S Abdulamir, Fatimah Abu Bakar
BACKGROUND: Citrus bioactive compounds, as active anticancer agent, have been under focus by several studies worldwide. However, the underlying genes responsible for the anticancer potential have not been sufficiently highlighted. OBJECTIVES: The current study investigated the gene expression profile of hepatocellular carcinoma, HepG2, cells after treatment with Limonene. METHODS: The concentration that killed 50% of HepG2 cells was used to elucidate the genetic mechanisms of limonene anticancer activity...
November 14, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/29141543/effects-of-fucoidan-and-chemotherapeutic-agent-combinations-on-malignant-and-non-malignant-breast-cell-lines
#15
Aisha Abudabbus, Jelili A Badmus, Salem Shalaweh, Rolene Bauer, Donavon Hiss
OBJECTIVES: Breast cancer is a leading cause of death among women in both developed and Third World countries. Fucoidan is a natural plant product produced by brown seaweeds with proven anticancer potential. This study determined the cytotoxic, apoptotic and cell cycle effects of fucoidan alone and in combination with first-line anticancer drugs (cisplatin, doxorubicin and taxol) in MCF-7 breast cancer cells and non-malignant MCF-12A breast epithelial cells as control. METHODS: Cytotoxicity was evaluated using the MTT reduction assay...
November 14, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29141514/regulatory-effect-of-neuroglobin-in-the-recovery-of-spinal-cord-injury
#16
Ji-Lin Dai, Yun Lin, Yong-Jian Yuan, Shi-Tong Xing, Yi Xu, Qiang-Hua Zhang, Ji-Kang Min
OBJECTIVE: The present study was aimed to investigate the therapeutic potential of neuroglobin in the recovery of spinal cord injury. METHODS: The male albino Wistar strain rats were used as an experimental model, and adeno associated virus (AAV) was administered in the T12 section of spinal cord ten days prior to the injury. Basso Beattie Bresnahan (BBB) locomotor rating scale was used to determine the recovery of the hind limb during four weeks post-operation...
November 16, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29141388/-effects-of-smp-30-overexpression-on-apoptosis-of-human-lens-epithelial-cells-induced-by-ultraviolet-b-irradiation
#17
H Teng, L Y Huang, F Tian, L J Dong, H Zhang
Objective: This study was to observe the effect of SMP-30 on ultraviolet B (UVB)-induced apoptosis of human lens epithelial cells(HLE-B3) in vitro. Methods: Experimental study. The SMP-30 cDNA was amplified by PCR and inserted into the pRFP-N1 expressing vector which had been double digested by XhoI/HindIII. HLE-B3 cells were cultured and divided into three groups: normal group, pRFP-N1 vector plasmid group and pRFP-N1-SMP-30 plasmid group (SMP-30). Then cells were exposed to UVB and the survival rate of cells was detected by MTT assay...
November 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29141249/%C3%AE-catenin-cooperates-with-creb-binding-protein-to-promote-the-growth-of-tumor-cells
#18
Wendan Yu, Liren Li, Fufu Zheng, Wenjing Yang, Shilei Zhao, Chunfang Tian, Wenwen Yin, Yiming Chen, Wei Guo, Lijuan Zou, Wuguo Deng
BACKGROUND/AIMS: β-catenin is an integral component of the canonical Wnt signaling pathway, and its mutations are an autosomal recessive cause of colorectal cancer (CRC), medulloblastoma (MDB), and ovarian cancer. Nevertheless, little is known about its function in lung cancers. METHODS: We first knocked down β-catenin by siRNA to investigate its effects on lung cancer cell proliferation, migration and apoptosis. Then we verified the interaction between β-catenin and CREB binding protein (CBP) by immunofluoresence and co-immunoprecipition assays...
November 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29141199/disruption-of-mitochondrial-function-as-mechanism-for-anti-cancer-activity-of-a-novel-mitochondriotropic-menadione-derivative
#19
José Teixeira, Ricardo Amorim, Katia Santos, Pedro Soares, Sandipan Datta, Gino A Cortopassi, Teresa L Serafim, Vilma A Sardão, Jorge Garrido, Fernanda Borges, Paulo J Oliveira
Menadione, also known as vitamin K3, is a 2-methyl-1,4 naphthoquinone with a potent cytotoxic activity mainly resulting from its quinone redox-cycling with production of reactive oxygen species (ROS). Although increased ROS generation is considered a relevant mechanism in cancer cell death, it may not be sufficiently effective to kill cancer cells due to phenotypic adaptations. Therefore, combining ROS-generating agents with other molecules targeting important cancer cell phenotypes can be an effective therapeutic strategy...
November 12, 2017: Toxicology
https://www.readbyqxmd.com/read/29140405/the-apoptotic-crypt-abscess-an-underappreciated-histologic-finding-in-gastrointestinal-pathology
#20
Geoffrey Talmon, Tristan Manasek, Ross Miller, David Muirhead, Audrey Lazenby
Objectives: To differentiate apoptotic crypt abscesses (ACAs) from neutrophilic crypt abscesses (NCAs). Methods: Cases with crypt abscesses were classified as containing ACAs, NCAs, or mixed crypt abscesses (MCAs) by H&E staining. Sections were stained with cleaved caspase 3 and myeloperoxidase and recategorized. Results: Fifty-nine cases were reviewed: inflammatory bowel disease (IBD; n = 33), acute cellular rejection (n = 5), graft vs host disease (GVHD; n = 14), cytomegalovirus (n = 5), and drug reaction (n = 2)...
November 11, 2017: American Journal of Clinical Pathology
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