Nikken Sohonsha Company

Hashima, Japan

Nikken Sohonsha Company

Hashima, Japan
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Guo Q.,China Agricultural University | Shao Q.,China Agricultural University | Xu W.,China Agricultural University | Rui L.,China Agricultural University | And 3 more authors.
Marine Drugs | Year: 2017

A number of polysaccharides have been reported to show immunomodulatory and antiviral activities against various animal viruses. AEX is a polysaccharide extracted from the green algae, Coccomyxa gloeobotrydiformis. The aim of this study was to examine the function of AEX in regulating the immune response in chickens and its capacity to inhibit the infectious bursal disease virus (IBDV), to gain an understanding of its immunomodulatory and antiviral ability. Here, preliminary immunological tests in vitro showed that the polysaccharide AEX can activate the chicken peripheral blood molecular cells' (PBMCs) response by inducing the production of cytokines and NO, promote extracellular antigen presentation but negatively regulate intracellular antigen presentation in chicken splenic lymphocytes, and promote the proliferation of splenic lymphocytes and DT40 cells. An antiviral analysis showed that AEX repressed IBDV replication by the deactivation of viral particles or by interfering with adsorption in vitro and reduced the IBDV viral titer in the chicken bursa of Fabricius. Finally, in this study, when AEX was used as an adjuvant for the IBDV vaccine, specific anti-IBDV antibody (IgY, IgM, and IgA) titers were significantly decreased. These results indicate that the polysaccharide AEX may be a potential alternative approach for anti-IBDV therapy and an immunomodulator for the poultry industry. However, more experimentation is needed to find suitable conditions for it to be used as an adjuvant for the IBDV vaccine. © 2016 by the authors; licensee MDPI, Basel, Switzerland.


Ishida Y.,Chubu University | Honda T.,Chubu University | Mabuchi S.,Nikken Sohonsha Company | Sueno O.,Nikken Sohonsha Company
Journal of Agricultural and Food Chemistry | Year: 2012

Thermally assisted hydrolysis and methylation-gas chromatography (THM-GC) in the presence of trimethylsulfonium hydroxide, using a vertical microfurnace pyrolyzer, was validated for the compositional analysis of fatty acid components in microalgae. The chromatograms of a microalga, Pavlova lutheri, obtained under optimized THM conditions clearly showed a series of fatty acid methyl esters including thermally labile polyunsaturated fatty acid components. On the basis of these peak areas, their chemical compositions were rapidly determined without using any tedious sample pretreatment with a precision of <8% relative standard deviation. Moreover, the compositions thus obtained were in good agreement with those obtained by the conventional technique involving solvent extraction. Finally, the THM-GC technique was applied for the compositional analysis of fatty acid components in a newly found microalga, Coccomyxa gloeobotrydiformis. The obtained data showed a high abundance (24 mol %) of -linolenic acid components, suggesting its potential usefulness as feed sources and/or functional foods. © 2012 American Chemical Society.


Sun L.,China Medical University at Heping | Jin Y.,Liaoning Medical University | Dong L.,China Medical University at Heping | Sui H.-J.,Liaoning Medical University | And 4 more authors.
International Journal of Biological Sciences | Year: 2015

Declining in learning and memory is one of the most common and prominent problems during the aging process. Neurotransmitter changes, oxidative stress, mitochondrial dysfunction and abnormal signal transduction were considered to participate in this process. In the present study, we examined the effects of Coccomyxa gloeobotrydiformis (CGD) on learning and memory ability of intrinsic aging rats. As a result, CGD treated (50 mg/kg·d or 100 mg/kg ·d for a duration of 8 weeks) 22-month-old male rats, which have shown significant improvement on learning and spatial memory ability compared with control, which was evidently revealed in both the hidden platform tasks and probe trials. The following immunohistochemistry and Western blot experiments suggested that CGD could increase the content of Ach and thereby improve the function of the cholinergic neurons in the hippocampus, and therefore also improving learning and memory ability of the aged rats by acting as an anti-inflammatory agent. The effects of CGD on learning and memory might also have an association with the ERK/CREB signalling. The results above suggest that the naturally made drug CGD may have several great benefit as a multi-target drug in the process of prevention and/or treatment of age-dependent cognitive decline and aging process. © 2015 Ivyspring International Publisher.


Sun L.,China Medical University at Heping | Jin Y.,Liaoning Medical University | Dong L.,China Medical University at Heping | Sumi R.,Nikken Sohonsha Corporation | And 2 more authors.
International Journal of Biological Sciences | Year: 2013

Stroke is a major cause of mortality and the leading cause of permanent disability. In this study, we adopted the classic middle cerebral artery occlusion(MCAO) stroke model to observe the therapeutic effects of coccomyxa gloeobotrydiformis(CGD) on ischemic stroke, and discuss the underlying mechanisms. Low dose (50 mg/kg.day) and high dose (100 mg/kg.day) concentrations of the drug CGD were intragastrically administrated separately for 8 weeks. Infarct volumes, neurologic deficits and degree of stroke-induced brain edema were measured 24 hours after reperfusion. Furthermore, oxidative stress related factors (SOD and MDA), mitochondrial membrane potential, and apoptosis regulatory factors (mitochondrial Cyt-C, Bcl-2, Bax, and caspase-3) were all investigated in this research. We found that CGD attenuated cerebral infarction, brain edema and neurologic deficits; CGD maintained the mitochondrial membrane potential and decreased mitochondrial swelling. It also prevented oxidative damage by reducing MDA and increasing SOD. In addition, CGD could effectively attenuate apoptosis by restoring the level of mitochondrial Cyt C and regulating the expression of Bcl-2, Bax and caspase 3. These results revealed that CGD has a therapeutic effect on ischemic stroke, possibly by inducing mitochondrial protection and anti-apoptotic mechanisms. © Ivyspring International Publisher.


Patent
Tel Hashomer Medical Research Infrastructure And Services Ltd. and Nikken Sohonsha Corporation | Date: 2013-07-18

Provided is a method for improving day photopic vision and/or cone-derived visual field and visual function in a subject suffering from a retinal disease or trauma including administering to the subject a pharmaceutically effective amount of crude Dunaliella powder. Also provided is a method for improving night vision and/or rod derived visual field in a subject suffering from a retinal disease including administering to the subject a pharmaceutically effective amount of crude Dunaliella powder. A pharmaceutical composition for improving day vision and/or visual field in a subject suffering from a retinal disease including crude Dunaliella powder is also provided.


Patent
Nikken Sohonsha Corporation and Tel Hashomer Medical Research Infrastructure And Services Ltd. | Date: 2010-05-11

A method for treating a disease selected from diabetes mellitus and atherosclerosis, and a method for reducing triglycerides and/or increasing HDL cholesterol levels in the plasma of a subject. The method comprises administrating to a subject an effective amount of crude Dunaliella powder, optionally together with an activator of nuclear receptors.


Patent
Nikken Sohonsha Corporation, Tel Hashomer Medical Research Infrastructure and Services Ltd. | Date: 2011-01-05

A method for treating a disease selected from diabetes mellitus and atherosclerosis, and a method for reducing triglycerides and/or increasing HDL cholesterol levels in the plasma of a subject. The method comprises administrating to a subject an effective amount of crude Dunaliella powder, optionally together with an activator of nuclear receptors.


Patent
Nikken Sohonsha Corporation | Date: 2012-05-02

In a step of producing a powder product of the alga belonging to the genus Dunaliella, a pH adjusting step is included in which an alga belonging to the genus Dunaliella is allowed to be in a basic state of pH 9.5 or higher. According to the method, it is possible to provide dried Dunaliella powder containing -carotene at a high content by suppressing degradation of -carotene as an active ingredient while decreasing each of the total pheophorbide amount and the existing pheophorbide amount to a predetermined value or less, even if the total pheophorbide amount and the existing pheophorbide amount of the cultured algae belonging to the genus Dunaliella are higher in summer.

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