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In vitro growth-inhibiting effects of leaf extracts from Pinus species on human intestinal bacteria


, : In vitro growth-inhibiting effects of leaf extracts from Pinus species on human intestinal bacteria. Agricultural Chemistry & Biotechnology 42(4): 202-204, Dec

Methanol extracts of leaves from 15 Pinus species belonging to the family Pinaceae were tested for their in vitro growth-inhibiting activities against 10 bacteria commonly found in the gastrointestinal tracts of human, using impregnated paper disk methods. The inhibitory activities varied with both bacterial strain and Pinus species used. At a concentration of 10 mg/disk, a clear growth inhibition was produced from the extracts of Pinus armandii, P. banksiana, P. bungeana, P. densiflora, P. rigida, and P. thunbergii against Clostridium perfringens, whereas all Pinus samples revealed weak or little growth-inhibiting activity against Escherichia coli, Bacteroides fragilis, and Staphylococcus aureus. At 5 mg/disk, the extracts of P. banksiana and P. thunbergii exhibited potent growth inhibition toward C. perfringens. All the extracts except the one from P. densiflora did not adversely affect growth of Bifidobacterium adolescentis, B. longum, B. bifidum, B. breve, B. animalis, and Lactobacillus casei. The growth-inhibiting activity was more pronounced in C. perfringens, as compared to the lactic acid-producing bacteria. These results may be an indication of at least one of the pharmacological activities of these Pinus species.

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Collin, A.; Perrin, A.; Cretallaz, C.; Pla, S.; Arnaud-Cormos, D.; Debouzy, J.C.; Leveque, P., 2016: In vivo setup characterization for pulsed electromagnetic field exposure at 3 GHz. An in vivo setup for pulsed electric field exposure at 3 GHz is proposed and characterized in this work. The exposure system allows far field, whole-body exposure of six animals placed in Plexiglas cages with a circular antenna. Chronic exposures...

Goeretzlehner G.; Scholz B.; Wodrig W.; Weber M.; Sas M.; Morway J., 1985: The modulating effect of estrogens on luteinizing hormone release in complete androgen insensitivity syndrome. Archives of Gynecology 237(SUPPL): 360

Bertelli, M.; Gallo, S.; Buda, A.; Cecchin, S.; Fabbri, A.; Lapucci, C.; Andrighetto, G.; Sidoti, V.; Lorusso, L.; Pandolfo, M., 2006: Novel mutations in the arylsulfatase A gene in eight Italian families with metachromatic leukodystrophy. Metachromatic leukodystrophy (MLD) is an autosomal recessive lysosomal storage disease caused by arylsulfatase A (ARSA) deficiency. We analysed the ARSA gene in eight unrelated Italian families with different clinical variants of MLD and identifie...

Qian Fengyi, 1997: Summary of a basic geological survey in Jiangsu, China. A basic geological survey of Jiangsu was carried out some time ago. This paper describes the whole picture of the regional geological survey, geophysical exploration, and geochemical exploration in Jiangsu Province.

Majumdar, A.K.; Yan, K.X.; Selverian, D.V.; Barlas, S.; Constanzer, M.; Dru, J.; McCrea, J.B.; Ahmed, T.; Frick, G.S.; Kraft, W.K.; Petty, K.J.; Greenberg, H.E., 2007: Effect of aprepitant on the pharmacokinetics of intravenous midazolam. Oral aprepitant 125 mg, an antiemetic and a moderate inhibitor of the metabolism of oral midazolam, was assessed for interaction with intravenous midazolam in 12 subjects randomized to intravenous midazolam 2 mg +/- oral aprepitant 125 mg. The hyp...

Mauri, G., 1989: Control trial against the American plane tiger (Corythucha ciliata) by injection of the trees. Injecting urban plane trees [Platanus] in Switzerland with Metasytox [demeton-S-methyl], as Inject-a-cide from Mauget, was effective in controlling the tingid Corythucha ciliata. A single treatment in June when nymphs first appeared prevented or g...

Takemoto, S.; Hattori, M.; Yoshinari, M.; Kawada, E.; Asami, K.; Oda, Y., 2008: Corrosion mechanism of Ti-Cr alloys in solution containing fluoride. The objective of this study was to clarify the influence of chromium content on surface reaction of Ti-Cr alloys in an acidic fluoride-containing saline solution. Four Ti-Cr alloys containing 5, 10, 15 or 20 mass% chromium were characterized in te...

Aitken, L.M.; Castillo, M.I.; Ullman, A.; Engström, Åsa.; Cunningham, K.; Rattray, J., 2016: What is the relationship between elements of ICU treatment and memories after discharge in adult ICU survivors?. Patients admitted to an intensive care unit (ICU) often experience distressing memories during recovery that have been associated with poor psychological and cognitive outcomes. The aim of this literature review was to synthesise the literature re...

Zermann, D-Henrik.; Kutzenberger, J.; Sauerwein, D.; Schubert, Jörg.; Loeffler, U., 2006: Penile prosthetic surgery in neurologically impaired patients: long-term followup. Purpose: Penile prosthetics are a viable option for erectile dysfunction in neurologically impaired patients. Penile implants can also be used to facilitate the management of urinary drainage when penile retraction has made this difficult.Material...

Grodsky, I.T., 1977: Biophysical bases of tissue interactions. Neurosciences Research Program Bulletin 15(1): 72-80