Mice, Inbred BALB C

Publication Title: 
Oncology Reports

Silent information regulator 2 (SIR2) is a highly conserved protein, the mammalian orthologue of which, SIRT1, exhibits histone deacetylase activity. SIRT1 is involved not in only longevity due to caloric restriction but in a variety of diseases such as diabetes, cardiovascular dysfunction and neurodegeneration. However, accumulating evidence shows that SIRT1 is overexpressed in various types of malignant cells, and its inhibitors suppress the growth of tumor cells. The relationship between SIRT1 and metastasis remains to be clarified.

Author(s): 
Suzuki, Kensuke
Hayashi, Ryuji
Ichikawa, Tomomi
Imanishi, Shingo
Yamada, Toru
Inomata, Minehiko
Miwa, Toshiro
Matsui, Shoko
Usui, Isao
Urakaze, Masaharu
Matsuya, Yuji
Ogawa, Hirofumi
Sakurai, Hiroaki
Saiki, Ikuo
Tobe, Kazuyuki
Publication Title: 
Biological & Pharmaceutical Bulletin

Candida albicans is one of the most prevalent human opportunistic pathogens. C. albicans undergoes a yeast-to-hyphal transition that has been identified as a virulence factor as well as a critical element for mature biofilm formation. A previous study in our lab showed retigeric acid B (RAB), a lichen derived pentacyclic triterpenoid, displayed synergistic antifungal activity with azoles. We now showed that this combination also proved to be adequate in combating the formation of hyphae in vitro.

Author(s): 
Chang, Wenqiang
Li, Ying
Zhang, Li
Cheng, Aixia
Liu, Yongqing
Lou, Hongxiang
Publication Title: 
Basic & Clinical Pharmacology & Toxicology

Transient receptor potential melastatin 7 (TRPM7) plays a role in a number of physiological and pharmacological functions in variety of cells. The aim of this study was to clarify the role for TRPM7 channels and the effect of waixenicin A on the pacemaking activity of interstitial cells of Cajal (ICCs) and on the cell viability of the human gastric and breast adenocarcinoma cell lines, AGS and MCF-7, respectively.

Author(s): 
Kim, Byung J.
Nam, Joo H.
Kwon, Young K.
So, Insuk
Kim, Seon J.
Publication Title: 
Journal of Immunology (Baltimore, Md.: 1950)

Tumors use a wide array of immunosuppressive strategies, such as reducing the longevity and survival of dendritic cells (DCs), to diminish immune responses and limit the effect of immunotherapy. In this study, we found that tumors upregulate the expression of multiple microRNAs (miRNAs), such as miR-16-1, miR-22, miR-155, and miR-503. These tumor-associated miRNAs influenced the survival and longevity of DCs by affecting the expression of multiple molecules that are associated with apoptotic signaling pathways.

Author(s): 
Min, Siping
Liang, Xue
Zhang, Miaomiao
Zhang, Yuan
Mei, Shiyue
Liu, Jinzhe
Liu, Jingyi
Su, Xiaomin
Cao, Shuisong
Zhong, Xueqing
Li, Yueming
Sun, Jiatan
Liu, Qiaofei
Jiang, Xingran
Che, Yongzhe
Yang, Rongcun
Publication Title: 
American Journal of Physiology. Endocrinology and Metabolism

Xenobiotic metabolism has been proposed to play a role in modulating the rate of aging. Xenobiotic metabolizing enzymes (XME) are expressed at higher levels in calorically restricted mice (CR) and in GH/IGF-I-deficient, long-lived mutant mice. In this study, we show that many phase I XME genes are similarly upregulated in additional long-lived mouse models, including "crowded litter" (CL) mice, whose lifespan has been increased by food restriction limited to the first 3 wk of life, and in mice treated with rapamycin.

Author(s): 
Steinbaugh, Michael J.
Sun, Liou Y.
Bartke, Andrzej
Miller, Richard A.
Publication Title: 
Proceedings of the National Academy of Sciences of the United States of America

Early-life adversity increases the risk for psychopathology in later life. The underlying mechanism(s) is unknown, but epigenetic variation represents a plausible candidate. Early-life exposures can disrupt epigenetic programming in the brain, with lasting consequences for gene expression and behavior. This evidence is primarily derived from animal studies, with limited study in humans due to inaccessibility of the target brain tissue.

Author(s): 
Kundakovic, Marija
Gudsnuk, Kathryn
Herbstman, Julie B.
Tang, Deliang
Perera, Frederica P.
Champagne, Frances A.
Publication Title: 
Research Communications in Chemical Pathology and Pharmacology

Within one day after a single IP injection of cedar sesquiterpenes into mice, pentobarbital sleeptime was reduced by 40%. The estimated ED50 is 50 mg terpenes/kg body weight. The mice recovered from this terpene-induced reduction in the strength of hypnosis within 6 days after the terpene injection. The potency of the terpenes, the rapidity of their action, and the duration of their effectiveness in modulating a drug response suggest their usefulness as a pharmacological tool.

Author(s): 
Malkinson, A. M.
Shere, W. C.
Publication Title: 
Psychopharmacology

The effects of naltrexone on the increase in locomotor activity induced by a low dose (1.35 g/kg IP) of ethanol and on the duration of loss of righting reflex after a high dose (3.5 g/kg) of ethanol were studied in BALB/c, DBA/2, and C57BL/6 mice. Ethanol increased locomotor activity in DBA and BALB mice, but not in C57BL mice. Naltrexone, at a dose of 0.1 mg/kg, antagonized the ethanol-induced increase in locomotion similarly in DBA and BALB mice. The duration of loss of righting reflex was, however, differentially affected in all three strains by naltrexone.

Author(s): 
Kiianmaa, K.
Hoffman, P. L.
Tabakoff, B.
Publication Title: 
Life Sciences

The influence of four centrally-acting alpha-1 adrenoceptor agonists, namely, 2(2-chloro-5-trifluoromethylphenylimino) imidazolidine (St 587), cirazoline, (-) 1,2,3,4-tetrahydro-8-methoxy-5-methylthio-2-naphthalenamine ((-)SKF 89748A) and 2-(2-methylindazol-4-imino)imidazolidine (Sgd 101/75) on the pharmacological effects of ethanol was investigated. All four drugs reduced the duration of ethanol-induced hypnosis in C57B1/6 mice, this effect being proportional to their relative potencies to exert central alpha-1 agonism.

Author(s): 
Menon, M. K.
Dinovo, E. C.
Haddox, V. G.
Publication Title: 
Archives Internationales De Pharmacodynamie Et De Thérapie

The central nervous activity of the aqueous extract of kava was examined in mice, and compared to the effect of the lipid-soluble extract. The aqueous extract caused a loss of spontaneous activity without loss of muscle tone. No hypnotic effect was seen, but some analgesia was produced. The anticonvulsant effect against strychnine was very slight and there was no evidence of local anesthetic action. There was a slight anti-apomorphine effect and tetrabenazine-induced ptosis was decreased.

Author(s): 
Jamieson, D. D.
Duffield, P. H.
Cheng, D.
Duffield, A. M.

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