journal
MENU ▼
Read by QxMD icon Read
search

Biomolecules & Therapeutics

journal
https://www.readbyqxmd.com/read/28208014/improved-antitumor-efficacy-of-hyaluronic-acid-complexed-paclitaxel-nanoemulsions-in-treating-non-small-cell-lung-cancer
#1
Joo-Eun Kim, Young-Joon Park
Paclitaxel (PTX) is a effectively chemotherapeutic agent which is extensively able to treat the non-small cell lung, pancreatic, breast and other cancers. But it is a practically insoluble drug with water solubility less than 1 µg/mL, which restricts its therapeutic application. To overcome the problem, hyaluronic acid-complexed paclitaxel nanoemulsions (HPNs) were prepared by ionic complexation of paclitaxel (PTX) nanoemulsions and hyaluronic acid (HA) to specifically target non-small cell lung cancer. HPNs were composed of DL-α-tocopheryl acetate, soybean oil, polysorbate 80, ferric chloride, and HA and fabricated by high-pressure homogenization...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28208013/sex-differences-in-autism-like-behavioral-phenotypes-and-postsynaptic-receptors-expression-in-the-prefrontal-cortex-of-tert-transgenic-mice
#2
Ki Chan Kim, Kyu Suk Cho, Sung Min Yang, Edson Luck Gonzales, Schley Valencia, Pyeong Hwa Eun, Chang Soon Choi, Darine Froy Mabunga, Ji-Woon Kim, Judy Kyoungju Noh, Hee Jin Kim, Se Jin Jeon, Seol-Heui Han, Geon Ho Bahn, Chan Young Shin
Autism spectrum disorder (ASD) remains unexplained and untreated despite the high attention of research in recent years. Aside from its various characteristics is the baffling male preponderance over the female population. Using a validated animal model of ASD which is the telomerase reverse transcriptase overexpressing mice (TERT-tg), we conducted ASD-related behavioral assessments and protein expression experiments to mark the difference between male and females of this animal model. After statistically analyzing the results, we found significant effects of TERT overexpression in sociability, social novelty preference, anxiety, nest building, and electroseizure threshold in the males but not their female littermates...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28208012/hypothermia-inhibits-endothelium-independent-vascular-contractility-via-rho-kinase-inhibition
#3
Yoon Hee Chung, Keon Woong Oh, Sung Tae Kim, Eon Sub Park, Hyun Dong Je, Hyuk-Jun Yoon, Uy Dong Sohn, Ji Hoon Jeong, Hyen-Oh La
The present study was undertaken to investigate the influence of hypothermia on endothelium-independent vascular smooth muscle contractility and to determine the mechanism underlying the relaxation. Denuded aortic rings from male rats were used and isometric contractions were recorded and combined with molecular experiments. Hypothermia significantly inhibited fluoride-, thromboxane A₂-, phenylephrine-, and phorbol ester-induced vascular contractions regardless of endothelial nitric oxide synthesis, suggesting that another pathway had a direct effect on vascular smooth muscle...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28208011/glucosylsphingosine-activates-serotonin-receptor-2a-and-2b-implication-of-a-novel-itch-signaling-pathway
#4
Ramsha Afzal, Won-Sik Shim
Recent reports claimed that glucosylsphingosine (GS) is highly accumulated and specifically evoking itch-scratch responses in the skins of atopic dermatitis (AD) patients. However, it was unclear how GS can trigger itch-scratch responses, since there were no known molecular singling pathways revealed yet. In the present study, it was verified for the first time that GS can activate mouse serotonin receptor 2a (mHtr2a) and 2b (mHtr2b), but not 2c (mHtr2c) that are expressed in HEK293T cells. Specifically, effects of GS on all mouse serotonin receptor 2 subfamily were evaluated by calcium imaging techniques...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28208010/circulating-plasma-and-exosomal-micrornas-as-indicators-of-drug-induced-organ-injury-in-rodent-models
#5
Young-Eun Cho, Sang-Hyun Kim, Byung-Heon Lee, Moon-Chang Baek
This study was performed to evaluate whether microRNAs (miRNAs) in circulating exosomes may serve as biomarkers of drug-induced liver, kidney, or muscle-injury. Quantitative PCR analyses were performed to measure the amounts of liver-specific miRNAs (miR-122, miR-192, and miR-155), kidney-specific miR-146a, or muscle-specific miR-206 in plasma and exosomes from mice treated with liver, kidney or muscle toxicants. The levels of liver-specific miRNAs in circulating plasma and exosomes were elevated in acetaminophen-induced liver injury and returned to basal levels by treatment with antioxidant N-acetyl-cysteine...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190320/nuclear-receptor-ppar%C3%AE-agonist-wy-14-643-ameliorates-hepatic-cell-death-in-hepatic-ikk%C3%AE-deficient-mice
#6
Taehyeong Kim, Lilik Duwi Wahyudi, Frank J Gonzalez, Jung-Hwan Kim
Inhibitor of nuclear factor kappa-B kinase beta (IKKβ) plays a critical role in cell proliferation and inflammation in various cells by activating NF-κB signaling. However, the interrelationship between Peroxisome proliferator-activated receptor α (PPARα) and IKKβ in cell proliferation is not clear. In this study, we investigated the possible role of PPARα in the hepatic cell death in the absence of IKKβ gene using liver-specific Ikkb-null (Ikkb(F/F-AlbCre)) mice. To examine the function of PPARα activation in hepatic cell death, wild-type (Ikkb(F/F)) and Ikkb(F/F-AlbCre) mice were treated with PPARα agonist Wy-14,643 (0...
February 13, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190319/lncrna-meg3-regulates-imatinib-resistance-in-chronic-myeloid-leukemia-via-suppressing-microrna-21
#7
Xiangyu Zhou, Ping Yuan, Qi Liu, Zhiqiang Liu
Imatinib resistance has become a major clinical problem for chronic myeloid leukemia. The aim of the present study was to investigate the involvement of MEG3, a lncRNA, in imatinib resistance and demonstrate its underlying mechanisms. RNAs were extracted from CML patients' peripheral blood cells and human leukemic K562 cells, and the expression of MEG3 was measured by RT-qPCR. Cell proliferation and cell apoptosis were evaluated. Western blotting was used to measure the protein expression of several multidrug resistant transporters...
February 13, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190318/sedative-effect-of-sophora-flavescens-and-matrine
#8
Hyun-Ju Lee, Sun-Young Lee, Daehyuk Jang, Sun-Yong Chung, Insop Shim
The present study investigated the sedative effects of Sophora flavescens (SF) and its bioactive compound, matrine through performing locomotor activity test and the electroencephalography (EEG) analysis in the rat. The underlying neural mechanism of their beneficial effects was determined by assessing c-Fos immunoreactivity and serotonin (5-HT) in the brain utilizing immunohistochemical method and enzyme linked immunosorbent assay. The results showed that SF and matrine administration had an effect on normalization of caffeine-induced hyperactivity and promoting a shift toward non-rapid eye movement (NREM) sleep...
February 13, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190317/potential-for-dependence-on-lisdexamfetamine-in-vivo-and-in-vitro-aspects
#9
Jaesuk Yun, Kwang-Wook Lee, Jang-Hyeon Eom, Young-Hoon Kim, Jisoon Shin, Kyoungmoon Han, Hye-Kyung Park, Hyung Soo Kim, Hye Jin Cha
Although lisdexamfetamine is used as a recreational drug, little research exists regarding its potential for dependence or its precise mechanisms of action. This study aims to evaluate the psychoactivity and dependence profile of lisdexamfetamine using conditioned place preference and self-administration paradigms in rodents. Additionally, biochemical techniques are used to assess alterations in the dopamine levels in striatal synaptosomes following administration of lisdexamfetamine. Lisdexamfetamine increased both conditioned place preference and self-administration...
February 13, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190316/4-o-methylhonokiol-protects-hacat-cells-from-tgf-%C3%AE-1-induced-cell-cycle-arrest-by-regulating-of-canonical-and-non-canonical-pathways-of-tgf-%C3%AE-signaling
#10
Sang-Cheol Kim, Jung-Il Kang, Jin-Won Hyun, Ji-Hoon Kang, Young-Sang Koh, Young-Heui Kim, Ki-Ho Kim, Ji-Hee Ko, Eun-Sook Yoo, Hee-Kyoung Kang
4-O-methylhonokiol, a neolignan compound from Magnolia Officinalis, has been reported to have various biological activities including hair growth promoting effect. However, although transforming growth factor-β (TGF-β) signal pathway has an essential role in the regression induction of hair growth, the effect of 4-O-methylhonokiol on the TGF-β signal pathwayhas not yet been elucidated. We thus examined the effect of 4-O-methylhonokiol on TGF-β-induced canonical and noncanonical pathways in HaCaT human keratinocytes...
February 13, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28173643/the-abuse-potential-of-%C3%AE-piperidinopropiophenone-pipp-and-%C3%AE-piperidinopentiothiophenone-pivt-two-new-synthetic-cathinones-with-piperidine-ring-substituent
#11
Chrislean Jun Botanas, Seong Shoon Yoon, June Bryan de la Peña, Irene Joy Dela Peña, Mikyung Kim, Taeseon Woo, Joung-Wook Seo, Choon-Gon Jang, Kyung-Tae Park, Young Hun Lee, Yong Sup Lee, Hee Jin Kim, Jae Hoon Cheong
A diversity of synthetic cathinones has flooded the recreational drug marketplace worldwide. This variety is often a response to legal control actions for one specific compound (e.g. methcathinone) which has resulted in the emergence of closely related replacement. Based on recent trends, the nitrogen atom is one of the sites in the cathinone molecule being explored by designer type modifications. In this study, we designed and synthesized two new synthetic cathinones, (1) α-piperidinopropiophenone (PIPP) and (2) α-piperidinopentiothiophenone (PIVT), which have piperidine ring substituent on their nitrogen atom...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28173642/a-novel-urotensin-ii-receptor-antagonist-kr-36996-inhibits-smooth-muscle-proliferation-through-erk-ros-pathway
#12
Tae-Ho Kim, Dong Gil Lee, Young-Ae Kim, Byung Ho Lee, Kyu Yang Yi, Yi-Sook Jung
Urotensin II (UII) is a mitogenic and hypertrophic agent that can induce the proliferation of vascular cells. UII inhibition has been considered as beneficial strategy for atherosclerosis and restenosis. However, currently there is no therapeutics clinically available for atherosclerosis or restenosis. In this study, we evaluated the effects of a newly synthesized UII receptor (UT) antagonist, KR-36996, on the proliferation of SMCs in vitro and neointima formation in vivo in comparison with GSK-1440115, a known potent UT antagonist...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28173641/effects-of-adamantyl-derivatives-on-pharmacokinetic-behavior-of-paclitaxel-in-rats
#13
Kyung Mi Kim, Kyeong Lee, Kyusic Jang, Yae Seul Moon, Hwa Jeong Lee, Sandy Jeong Rhie
Paclitaxel (PTX) is one of the most frequently used anticancer agent for treating refractory ovarian cancer, metastatic breast cancer and non-small cell lung cancer. However, its oral administration is impeded by very low bioavailability (<5%) due to the P-glycopprotein (P-gp) efflux pump effect. This study investigated in vitro and in vivo P-gp inhibitory effects of adamantyl derivatives AC-603 and AC-786 in rats. Two adamantyl derivatives tested in this study increased the cytotoxicity of daunomycin (DNM) in P-gp overexpressed cell line by inhibiting P-gp efflux function...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28173640/tanshinone-iia-protects-endothelial-cells-from-h2o2-induced-injuries-via-pxr-activation
#14
Haiyan Zhu, Zhiwu Chen, Zengchun Ma, Hongling Tan, Chengrong Xiao, Xianglin Tang, Boli Zhang, Yuguang Wang, Yue Gao
Tanshinone IIA (Tan IIA) is a pharmacologically active substance extracted from the rhizome of Salvia miltiorrhiza Bunge (also known as the Chinese herb Danshen), and is widely used to treat atherosclerosis. The pregnane X receptor (PXR) is a nuclear receptor that is a key regulator of xenobiotic and endobiotic detoxification. Tan IIA is an efficacious PXR agonist that has a potential protective effect on endothelial injuries induced by xenobiotics and endobiotics via PXR activation. Previously numerous studies have demonstrated the possible effects of Tan IIA on human umbilical vein endothelial cells, but the further mechanism for its exerts the protective effect is not well established...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28173639/bosentan-and-rifampin-interactions-modulate-influx-transporter-and-cytochrome-p450-expression-and-activities-in-primary-human-hepatocytes
#15
Kyoung-Moon Han, Sun-Young Ahn, Hyewon Seo, Jaesuk Yun, Hye Jin Cha, Ji-Soon Shin, Young-Hoon Kim, Hyungsoo Kim, Hye-Kyung Park, Yong-Moon Lee
The incidence of polypharmacy-which can result in drug-drug interactions-has increased in recent years. Drug-metabolizing enzymes and drug transporters are important polypharmacy modulators. In this study, the effects of bosentan and rifampin on the expression and activities of organic anion-transporting peptide (OATP) and cytochrome P450 (CYP450) 2C9 and CYP3A4 were investigated in vitro. HEK293 cells and primary human hepatocytes overexpressing the target genes were treated with bosentan and various concentrations of rifampin, which decreased the uptake activities of OATP transporters in a dose-dependent manner...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27956717/molecular-signature-that-determines-the-acute-tolerance-of-g-protein-coupled-receptors
#16
Chengchun Min, Xiaohan Zhang, Mei Zheng, Ningning Sun, Sirijan Archarya, Xiaowei Zhang, Kyeong-Man Kim
Desensitization and acute tolerance are terms used to describe the attenuation of receptor responsiveness by prolonged or intermittent exposure to an agonist. Unlike desensitization of G protein-coupled receptors (GPCRs), which is commonly explained by steric hindrance caused by the β-arrestins that are translocated to the activated receptors, molecular mechanisms involved in the acute tolerance of GPCRs remain unclear. Our studies with several GPCRs and related mutants showed that the acute tolerance of GPCRs could occur independently of agonist-induced β-arrestin translocation...
December 16, 2016: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27956716/therapeutic-potential-of-medicinal-plants-and-their-constituents-on-lung-inflammatory-disorders
#17
REVIEW
Hyun Pyo Kim, Hyun Lim, Yong Soo Kwon
Acute bronchitis and chronic obstructive pulmonary diseases (COPD) are essentially lung inflammatory disorders. Various plant extracts and their constituents showed therapeutic effects on several animal models of lung inflammation. These include coumarins, flavonoids, phenolics, iridoids, monoterpenes, diterpenes and triterpenoids. Some of them exerted inhibitory action mainly by inhibiting the mitogen-activated protein kinase pathway and nuclear transcription factor-κB activation. Especially, many flavonoid derivatives distinctly showed effectiveness on lung inflammation...
December 16, 2016: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27956715/intravenous-administration-of-substance-p-attenuates-mechanical-allodynia-following-nerve-injury-by-regulating-neuropathic-pain-related-factors
#18
Eunkyung Chung, Tae Gyoon Yoon, Sumin Kim, Moonkyu Kang, Hyun Jeong Kim, Youngsook Son
This study aimed to investigate the analgesic effect of substance P (SP) in an animal model of neuropathic pain. An experimental model of neuropathic pain, the chronic constriction injury (CCI) model, was established using ICR mice. An intravenous (i.v.) injection of SP (1 nmole/kg) was administered to the mice to examine the analgesic effects of systemic SP on neuropathic pain. Behavioral testing and immunostaining was performed following treatment of the CCI model with SP. SP attenuated mechanical allodynia in a time-dependent manner, beginning at 1 h following administration, peaking at 1 day post-injection, and decaying by 3 days post-injection...
December 16, 2016: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27956714/auranofin-suppresses-plasminogen-activator-inhibitor-2-expression-through-annexin-a5-induction-in-human-prostate-cancer-cells
#19
Dong-Won Shin, Yeo-Jung Kwon, Dong-Jin Ye, Hyoung-Seok Baek, Joo-Eun Lee, Young-Jin Chun
Auranofin has been developed as antirheumatic drugs, which is currently under clinical development for the treatment of chronic lymphocytic leukemia. Previous report showed that auranofin induced apoptosis by enhancement of annexin A5 expression in PC-3 cells. To understand the role of annexin A5 in auranofin-mediated apoptosis, we performed microarray data analysis to study annexin A5-controlled gene expression in annexin A5 knockdown PC-3 cells. Of differentially expressed genes, plasminogen activator inhibitor (PAI)-2 was increased by annexin A5 siRNA confirmed by qRT-PCR and western blot...
December 13, 2016: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/27956713/characterization-of-a-biflaviolin-synthase-cyp158a3-from-streptomyces-avermitilis-and-its-role-in-the-biosynthesis-of-secondary-metabolites
#20
Young-Ran Lim, Songhee Han, Joo-Hwan Kim, Hyoung-Goo Park, Ga-Young Lee, Thien-Kim Le, Chul-Ho Yun, Donghak Kim
Streptomyces avermitilis produces clinically useful drugs such as avermectins and oligomycins. Its genome contains approximately 33 cytochrome P450 genes and they seem to play important roles in the biosynthesis of many secondary metabolites. The SAV_7130 gene from S. avermitilis encodes CYP158A3; the amino acid sequence of this enzyme has high similarity with that of CYP158A2, a biflaviolin synthase from S. coelicolor A3(2). Recombinant S. avermitilis CYP158A3 was heterologously expressed and purified. It exhibited the typical P450 Soret peak at 447 nm in the reduced CO-bound form...
December 13, 2016: Biomolecules & Therapeutics
journal
journal
46750
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"