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https://www.readbyqxmd.com/read/28823096/sub-chronic-exposure-to-low-concentration-of-dibutyl-phthalate-affects-anthropometric-parameters-and-markers-of-obesity-in-rats
#1
Khalid Abdul Mjaeed, Habib Ur Rehman, Muhammad Shahbaz Yousaf, Hafsa Zaneb, Imtiaz Rabbani, Sajid Khan Tahir, Muhammad Afzal Rashid
Dibutyl phthalate is an important phthalate ester extensively used in various products like plastics, adhesives, inks, pharmaceuticals, lacquers, varnishes, paper coatings, safety glasses, and cosmetics. The exposure of DBP to "one's health" is therefore inevitable. The present study focuses on elucidating the effect of low doses of DBP on anthropometric parameters and markers of obesity in rats in a 13-week study. A total of 48 rats were divided into three treatment groups as mg DBP/kg body weight per day: (a) 0 mg/kg (control), (b) 10 mg/kg (DBP-10), and (c) 50 mg/kg (DBP-50)...
August 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28823092/inhibition-of-p2x7-receptors-improves-outcomes-after-traumatic-brain-injury-in-rats
#2
Xiaofeng Liu, Zhengqing Zhao, Ruihua Ji, Jiao Zhu, Qian-Qian Sui, Gillian E Knight, Geoffrey Burnstock, Cheng He, Hongbin Yuan, Zhenghua Xiang
Traumatic brain injury (TBI) is the leading cause of death and disability for people under the age of 45 years worldwide. Neuropathology after TBI is the result of both the immediate impact injury and secondary injury mechanisms. Secondary injury is the result of cascade events, including glutamate excitotoxicity, calcium overloading, free radical generation, and neuroinflammation, ultimately leading to brain cell death. In this study, the P2X7 receptor (P2X7R) was detected predominately in microglia of the cerebral cortex and was up-regulated on microglial cells after TBI...
August 19, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28823083/erratum-to-modulation-of-spontaneous-intracellular-ca-2-fluctuations-and-spontaneous-cholinergic-transmission-in-rat-chromaffin-cells-in-situ-by-endogenous-gaba-acting-on-gabaa-receptors
#3
Tzitzitlini Alejandre-García, Pedro Segura-Chama, Elia Martha Pérez-Armendáriz, Rodolfo Delgado-Lezama, Arturo Hernández-Cruz
No abstract text is available yet for this article.
August 19, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28823073/effect-of-low-level-laser-therapy-%C3%AE-780%C3%A2-nm-on-the-mechanically-damaged-dentin-pulp-complex-in-a-model-of-extrusive-luxation-in-rat-incisors
#4
Dandara Andrade de Santana, Gabriela Ferraz Fonseca, Luciana Maria Pedreira Ramalho, Tânia Tavares Rodriguez, Marcio Cajazeira Aguiar
In order to regenerate the dental pulp, many strategies have been developed as phototherapy. In the pulp repair, we do not know if gallium-aluminum-arsenide (GaAlAs) laser preserves the primary odontoblasts or stimulates the formation of more dentin matrix when dental pulp is damaged. The aim of the present study was to examine the effect of laser phototherapy (λ780 nm) on vascularization, inflammation, density of the primary odontoblast layer, and formation of reactionary and reparative dentin in the dental pulp by provoking extrusion of the rat incisor...
August 19, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28823068/stress-affects-surface-glycoconjugates-of-the-rat-endometrium-at-the-time-of-implantation
#5
Elham Aliabadi, Zohreh Makoolati, Tahereh Talaei-Khozani, Fakhreddin Mesbah Ardekani
One of the treatments to infertility is In Vitro Fertilization (IVF). In the course of IVF, fertilization rate can be improved through stress reduction. Probably one of the causes of low outcome of IVF is changes in uterine glycoconjugates that are first site of contact between blastocyst and uterus, due to stress, e.g., stress of injection. Thus, the study of the injectional stress effects on implantation period is very important to improve the outcome of IVF. Sixteen mature female rats were divided to experimental and control groups...
August 19, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28823058/polyurethane-gelatin-nanofibrils-neural-guidance-conduit-containing-platelet-rich-plasma-and-melatonin-for-transplantation-of-schwann-cells
#6
Majid Salehi, Mahdi Naseri-Nosar, Somayeh Ebrahimi-Barough, Mohammdreza Nourani, Arash Khojasteh, Saeed Farzamfar, Korosh Mansouri, Jafar Ai
The current study aimed to enhance the efficacy of peripheral nerve regeneration using a biodegradable porous neural guidance conduit as a carrier to transplant allogeneic Schwann cells (SCs). The conduit was prepared from polyurethane (PU) and gelatin nanofibrils (GNFs) using thermally induced phase separation technique and filled with melatonin (MLT) and platelet-rich plasma (PRP). The prepared conduit had the porosity of 87.17 ± 1.89%, the contact angle of 78.17 ± 5.30° and the ultimate tensile strength and Young's modulus of 5...
August 19, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28823033/the-combination-of-mitomycin-induced-blood-cells-with-a-temporary-treatment-of-ciclosporin-a-prolongs-allograft-survival-in-vascularized-composite-allotransplantation
#7
Christian Andreas Radu, Sebastian Fischer, Yannick Diehm, Otto Hetzel, Florian Neubrech, Laura Dittmar, Christian Kleist, Martha Maria Gebhard, Peter Terness, Ulrich Kneser, Jurij Kiefer
BACKGROUND: Vascularized composite allotransplantation (VCA) is a rapidly expanding field of transplantation and provides a potential treatment for complex tissue defects. Peripheral blood mononuclear cells (PBMCs) shortly incubated with the antibiotic and chemotherapeutic agent mitomycin C (MMC) can suppress allogeneic T cell response and control allograft rejection in various organ transplantation models. MMC-incubated PBMCs (MICs) are currently being tested in a phase I clinical trial in kidney transplant patients...
August 19, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28823028/backbone-resonance-assignments-of-complexes-of-human-voltage-dependent-sodium-channel-nav1-2-iq-motif-peptide-bound-to-apo-calmodulin-and-to-the-c-domain-fragment-of-apo-calmodulin
#8
Ryan Mahling, Adina M Kilpatrick, Madeline A Shea
Human voltage-gated sodium channel NaV1.2 has a single pore-forming α-subunit and two transmembrane β-subunits. Expressed primarily in the brain, NaV1.2 is critical for initiation and propagation of action potentials. Milliseconds after the pore opens, sodium influx is terminated by inactivation processes mediated by regulatory proteins including calmodulin (CaM). Both calcium-free (apo) CaM and calcium-saturated CaM bind tightly to an IQ motif in the C-terminal tail of the α-subunit. Our thermodynamic studies and solution structure (2KXW) of a C-domain fragment of apo (13)C,(15)N- CaM (CaMC) bound to an unlabeled peptide with the sequence of rat NaV1...
August 19, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28823024/effect-of-kaempferia-parviflora-extract-on-knee-osteoarthritis
#9
Hiroko Kobayashi, Ryo Suzuki, Kei Sato, Takatoshi Ogami, Hiroshi Tomozawa, Masahito Tsubata, Koji Ichinose, Masaki Aburada, Wataru Ochiai, Kiyoshi Sugiyama, Tsutomu Shimada
Knee osteoarthritis (OA) is becoming more prevalent worldwide due to increases in the numbers of elderly and obese patients. Currently, pharmaceutical medicines used for the treatment of OA are for symptomatic therapy and therefore new therapeutic agents are needed. Kaempferia parviflora (KP) is a plant growing naturally in Southeast Asia and has various pharmacological effects including an anti-inflammatory effect, but no effect on OA has yet been reported. We therefore conducted a search for the effects KP and the active components of KP extract (KPE) exert on OA as well as its mechanism of action...
August 19, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28822992/low-dose-bisphenol-a-increases-bile-duct-proliferation-in-juvenile-rats-a-possible-evidence-for-risk-of-liver-cancer-in-the-exposed-population
#10
Ji Seong Jeong, Ki Taek Nam, Buhyun Lee, Aryo Dimas Pamungkas, Daeun Song, Minjeong Kim, Wook-Joon Yu, Jinsoo Lee, Sunha Jee, Youngja H Park, Kyung-Min Lim
Increasing concern is being given to the association between risk of cancer and exposure to low-dose bisphenol A (BPA), especially in young-aged population. In this study, we investigated the effects of repeated oral treatment of low to high dose BPA in juvenile Sprague-Dawley rats. Exposing juvenile rats to BPA (0, 0.5, 5, 50, and 250 mg/kg oral gavage) from post-natal day 9 for 90 days resulted in higher food intakes and increased body weights in biphasic dose-effect relationship. Male mammary glands were atrophied at high dose, which coincided with sexual pre-maturation of females...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822987/effects-of-a-water-extract-of-lepidium-meyenii-root-in-different-models-of-persistent-pain-in-rats
#11
Barbara Tenci, Lorenzo Di Cesare Mannelli, Mario Maresca, Laura Micheli, Giuseppe Pieraccini, Nadia Mulinacci, Carla Ghelardini
Lepidium meyenii (Walp.), commonly called maca, is an Andean crop belonging to the Brassicaceae family. Maca hypocotils are habitually consumed as customary food as well as traditional remedies for pathological conditions such as infertility. Moreover, the characterization of maca extracts revealed the presence of compounds that are able to modulate the nervous system. Aimed to evaluate the efficacy of L. meyenii in persistent pain, the present study analyzed the effects of a commercial root extract from maca in different animal models reproducing the most common causes of chronic painful pathologies...
August 21, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/28822967/temporal-dynamics-of-cardiac-hypertrophic-growth-in-response-to-pressure-overload
#12
Yuan Wang, Yuannyu Zhang, Guanqiao Ding, Herman May, Jian Xu, Thomas G Gillette, Hang Wang, Zhao V Wang
Hypertension is one of the most important risk factors of heart failure. In response to high blood pressure, the left ventricle manifests hypertrophic growth to ameliorate wall stress, which may progress into decompensation and trigger pathological cardiac remodeling. Despite the clinical importance, the temporal dynamics of pathological cardiac growth remains elusive. Here, we took advantage of the puromycin labeling approach to measure the relative rates of protein synthesis as a way to delineate the temporal regulation of cardiac hypertrophic growth...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822965/diabetes-increases-the-susceptibility-to-acute-kidney-injury-after-myocardial-infarction-through-augmented-activation-of-renal-toll-like-receptors-in-rats
#13
Kouhei Ohno, Atsushi Kuno, Hiromichi Murase, Shingo Muratsubaki, Takayuki Miki, Masaya Tanno, Toshiyuki Yano, Satoko Ishikawa, Tomohisa Yamashita, Tetsuji Miura
Acute kidney injury (AKI) after acute myocardial infarction (MI) worsens the prognosis of MI patients. Although type 2 diabetes mellitus (DM) is a major risk factor of AKI after MI, the underlying mechanism remains unclear. Here, we examined roles of renal toll-like receptors (TLRs) in the impact of DM on AKI after MI. MI was induced by coronary artery ligation in OLETF, a rat DM model, and LETO, non-diabetic controls. Sham-operated rats served as no-MI controls. Renal mRNA levels of TLR2 and MyD88 were significantly higher in sham-operated OLETF than in sham-operated LETO, though levels of TLR1, TLR3, and TRL4 were similar...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822959/na2s-a-fast-releasing-h2s-donor-given-as-suppository-lowers-blood-pressure-in-rats
#14
Lenka Tomasova, Adrian Drapala, Halina Jurkowska, Maria Wróbel, Marcin Ufnal
BACKGROUND: Hydrogen sulfide (H2S) is involved in blood pressure control. The available slow-releasing H2S-donors are poorly soluble in water and their ability to release H2S in biologically relevant amounts under physiological conditions is questionable. Therefore, new slow-releasing donors or new experimental approaches to fast-releasing H2S donors are needed. METHODS: Hemodynamics and ECG were recorded in male, anesthetized Wistar Kyoto rats (WKY) and in Spontaneously hypertensive rats (SHR) at baseline and after: 1) intravenous (iv) infusion of vehicle or Na2S; 2) administration of vehicle suppositories or Na2S suppositories...
April 19, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28822876/effect-of-maternal-feed-restriction-on-prenatal-development-in-rats-and-rabbits-a-review-of-published-data
#15
Dana Nitzsche
With respect to hazard classification for developmental toxicity under the CLP Regulation it is important to consider the possible influence of maternal toxicity. The aim of the present review was to characterize to which extent developmental effects could be caused by non-specific maternal toxicity. Such effects would not be relevant for classification. In prenatal developmental toxicity studies, the administration of high doses is given in the guideline. The associated non-specific systemic toxicity often affects the maternal body weight...
August 16, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28822853/intrauterine-and-lactation-exposure-to-fluoxetine-blunted-in-the-offspring-the-aortic-adaptive-response-induced-by-acute-restraint-stress
#16
Bruno V D Marques, Carolina M Higashi, Daniella R B da S Novi, Nagela G Zanluqui, Thais F Gregório, Phileno Pinge-Filho, Daniela C C Gerardin, Gislaine P Gomes, Estefânia G Moreira, Graziela S Ceravolo
Selective serotonin reuptake inhibitors are the most widely prescribed antidepressants to women during pregnancy. Maternal treatment with fluoxetine can expose fetuses and neonates to higher levels of serotonin that plays a role in stress response. Thus, the aim of the study was to evaluate whether maternal treatment with fluoxetine interferes with aorta reactivity of adult male offspring after acute restraint stress. Wistar rats were gavaged with fluoxetine (5mg/kg/day) or water (control) during pregnancy and lactation...
August 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28822845/triphenyl-phosphonium-coated-nano-quercetin-for-oral-delivery-neuroprotective-effects-in-attenuating-age-related-global-moderate-cerebral-ischemia-reperfusion-injury-in-rats
#17
Swarupa Ghosh, Sibani Sarkar, Somsubhra T Choudhury, Tirtha Ghosh, Nirmalendu Das
Cerebral ischemia-reperfusion is a classical example of reactive oxygen species (ROS) mediated acute damage to brain. Post-ischemic reperfusion induced oxygen free radicals production causes damage to brain cell mitochondria. Antioxidants like quercetin (Qc) have potentials to manage oxidative stress related pathophysiology. However low oral bioavailability and poor cell membrane permeability restricts its therapeutic efficacy. To overcome these hurdles mitochondria specific delivery of Qc nanocapsules were designed to efficiently counteract cerebral ischemia-reperfusion induced cell death and neurodegeneration in young and aged rats...
August 16, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28822818/phrenic-long-term-facilitation-following-intrapleural-ctb-sap-induced-respiratory-motor-neuron-death
#18
Nicole L Nichols, Taylor A Craig, Miles A Tanner
Amyotrophic lateral sclerosis (ALS) is a devastating disease leading to progressive motor neuron degeneration and death by ventilatory failure. In a rat model of ALS (SOD1(G93A)), phrenic long-term facilitation (pLTF) following acute intermittent hypoxia (AIH) is enhanced greater than expected at disease end-stage but the mechanism is unknown. We suggest that one trigger for this enhancement is motor neuron death itself. Intrapleural injections of cholera toxin B fragment conjugated to saporin (CTB-SAP) selectively kill respiratory motor neurons and mimic motor neuron death observed in SOD1(G93A) rats...
August 16, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28822817/rosiglitazone-promotes-cardiac-hypertrophy-and-alters-chromatin-remodeling-in-isolated-cardiomyocytes
#19
Lama Fawaz Pharaon, Naglaa Fathi El-Orabi, Muhammad Kunhi, Nadya Al Yacoub, Salma Mahmoud Awad, Coralie Poizat
Rosiglitazone is an anti-diabetic agent that raised a major controversy over its cardiovascular adverse effects. There is in vivo evidence that Rosiglitazone promotes cardiac hypertrophy by PPAR -γ-independent mechanisms. However, whether Rosiglitazone directly alters hypertrophic growth in cardiac cells is unknown. Chromatin remodeling by histone post-translational modifications has emerged as critical for many cardiomyopathies. Based on these observations, this study was initiated to investigate the cardiac hypertrophic effect of Rosiglitazone in a cellular model of primary neonatal rat cardiomyocytes (NRCM)...
August 16, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28822809/inhibition-of-soluble-epoxide-hydrolase-lowers-portal-hypertension-in-cirrhotic-rats-by-ameliorating-endothelial-dysfunction-and-liver-fibrosis
#20
Wensheng Deng, Yiming Zhu, Jiayun Lin, Lei Zheng, Chihao Zhang, Meng Luo
Epoxyeicostrienoic acids (EETs) are arachidonic acid derived meditators which are catalyzed by soluble epoxide hydrolase (sEH) to less active dihydroeicostrienoics acids (DHETS). The aim of our study is to investigate the effects of sEH inhibition on hepatic and systemic hemodynamics, hepatic endothelial dysfunction, and hepatic fibrosis in CCl4 cirrhotic rats. The sEH inhibitor,trans-4-{4-[3-(4-trifluoromethoxyphenyl)-ureido]cyclohexyloxy}benzoic acid (t-TUCB) was administered to stabilize hepatic EETs by gavage at a dose of 1mg/kg/d...
August 16, 2017: Prostaglandins & Other Lipid Mediators
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