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( Mohammed Nurul Absar Khan ),( Ji Young Kang ),( Nam Gyu Park ),( Jae Suk Choi ),( In Soon Choi ),( Yong Ki Hong ) 한국수산과학회(구 한국수산학회) 2012 Fisheries and Aquatic Sciences Vol.15 No.2
The non-utilized biomass of the aquacultured seaweed Undaria pinnatifida, particularly the rhizoid, is an alternative source of arachidonic acid (AA). Of the five aquacultured kelps that were tested, U. pinnatifida yielded the highest amount of AA, which was isolated from the rhizoids. Its identity (C20:4 n-6) was confirmed from gas chromatography-mass spectrometry spectral data. The optimal conditions for post-harvest storage or pretreatment of the rhizoids in Provasoli`s enriched seawater for AA extraction were determined to be pH 7.8, 2% CO2-enriched air, 20umol m-2 s-1 light, and 10°C. Under these conditions, the AA content after 1 day of storage was enhanced by up to 127%. In the absence of light under ambient aeration, the AA content after 1 day of storage diminished to 90%. Rhizoids collected late in the season (April and May) contained the highest amounts of AA (approximately 2.5 mg/g tissue).
Khan, Mohammed Nurul Absar,Kang, Ji-Young,Park, Nam-Gyu,Choi, Jae-Suk,Cho, In-Soon,Hong, Yong-Ki The Korean Society of Fisheries and Aquatic Scienc 2012 Fisheries and Aquatic Sciences Vol.15 No.2
The non-utilized biomass of the aquacultured seaweed Undaria pinnatifida, particularly the rhizoid, is an alternative source of arachidonic acid (AA). Of the five aquacultured kelps that were tested, U. pinnatifida yielded the highest amount of AA, which was isolated from the rhizoids. Its identity (C20:4 n-6) was confirmed from gas chromatography-mass spectrometry spectral data. The optimal conditions for post-harvest storage or pretreatment of the rhizoids in Provasoli's enriched seawater for AA extraction were determined to be pH 7.8, 2% $CO_2$-enriched air, 20 ${\mu}mol\;m^{-2}\;s^{-1}$ light, and $10^{\circ}C$. Under these conditions, the AA content after 1 day of storage was enhanced by up to 127%. In the absence of light under ambient aeration, the AA content after 1 day of storage diminished to 90%. Rhizoids collected late in the season (April and May) contained the highest amounts of AA (approximately 2.5 mg/g tissue).
Amna Ahmad,Kweku Baiden-Amissah,Adegoke Oyegade,Mohammed Absar,Kate Swainson,Sami Titi 대한병리학회 2014 Journal of Pathology and Translational Medicine Vol.48 No.1
Metastasis to the breast from colorectal carcinoma is rare, only a few cases have been reported in the literature, and no cases have been reported in a young, 28-year-old patient. This report confirms the occurrence of the disease in a younger age group. The patient was referred to the Breast Clinic with a history of a gradually increasing lump in her right breast for two weeks’ duration. On clinical examination, a 2-cm firm lump was noted in the upper inner quadrant of the rightbreast, which was clinically benign; however, histological examination of the breast core biopsy together with immunohistochemistry confirmed metastatic colorectal adenocarcinoma. The primary colorectal carcinoma was later confirmed to be a stage pT4N2M1 tumor, and the Duke stage was C1. Histology with immunohistochemistry is very important in the diagnosis of cases of this nature, but the clinical correlation should be taken into consideration at multidisciplinary team meetings to decide the final management of the patient.
Ji-Young Kang(강지영),Quoc-Hai Luyen,Mohammed Nurul Absar Khan,Jae-Suk Choi(최재석),In Soon Choi(최인순),Yong-Ki Hong(홍용기) 한국생명과학회 2012 생명과학회지 Vol.22 No.6
한약재의 원료 및 전세계적 외래종으로 알려져 있는 녹조류 청각(Codium fragile)의 디클로로메탄, 에탄올, 열수추출물을 대상으로 하여 생쥐에서의 항 염증, 해열, 및 진통 활성을 조사하였다. 청각의 디클로로메탄과 에탄올추출물은 phorbol 12-myristate 13-acetate로 유도된 생쥐 귀의 부종과 충혈에 대한 염증 증상을 74% 이상의 높은 저해 작용을 보였으며, 이들 추출물은 acetyl salicylic acid와 유사하게 발열증상을 억제하였다. 청각으로부터 주된 항 염증 활성물질은 eicosapentaenoic acid인 것으로 분리되었다. 이러한 결과는 청각이 여러 염증 관련 증상에 대처할 약제로서도 사용되어 질 수 있다는 사실을 뒷받침해 준다. Dichloromethane, ethanol, and boiling water extracts of the green seaweed Codium fragile, used as an herbal medicine and known as an invasive species over the world, were examined for anti-inflammatory, antipyretic, and analgesic activities in mice. The dichloromethane and ethanol extracts inhibited inflammatory symptoms of mouse ear edema and erythema by 74% or higher. The extracts also demonstrated inhibition of pyrexia, similar to that of acetyl salicylic acid. Eicosapentaenoic acid was isolated from the seaweed as the main active anti-inflammatory compound. These findings are consistent with various claims that the seaweed can be used as remedies for inflammation-related symptoms.
Anti-inflammatory Activities of Undaria pinnatifida and Laminaria japonica (Phaeophyta)
Cho, Ji-Young,Kang, Ji-Young,Khan, Mohammed Nurul Absar,Park, Nam-Hee,Kim, Sang-Kwon,Hong, Yong-Ki The Korean Society of Fisheries and Aquatic Scienc 2007 Fisheries and Aquatic Sciences Vol.10 No.3
The anti-inflammatory activities of dichloromethane, ethanol, and boiling water extracts of the brown seaweeds Undaria pinnatifida (Harvey) Suringar and Laminaria japonica Areschoug were examined. Ethanol extracts (0.4 mg/ear) of U. pinnatifida inhibited inflammatory symptoms in mouse ear edema by 95.3%, and dichloromethane extract inhibited erythema by 65.5%. Dichloromethane and ethanol extracts (4 g/kg bw) of L. japonica demonstrated potent antipyretic activity. Activities of the seaweed extracts were similar to those of the commonly used drugs indomethacin and acetyl salicylic acid. No acute toxicity was observed after p.o. administration of each extract (5 g/kg bw). These results were in agreement with the claims of the health care industry and indigenous medicine that the above seaweeds can be used as an effective remedy for inflammation-related symptoms.
Growth Performance of Pangasiid Catfish, Silver carp and Catla in Polyculture
Reaz Uddin Sarkar,Saleha Khan,Mahfuzul Haque,Mohammed Nurul Absar Khan,Quoc-Hai Luyen,Jae-Suk Choi(최재석) 한국생명과학회 2008 생명과학회지 Vol.18 No.9
방글라데시 미멘싱에 소재하는 양식어장에서 pangasiid catfish (Pangasius hypophthalmus), silver carp (Hypophthalmichthys molitrix)와 catla (Catla catla)의 조합과 혼합비를 달리하여 16주간 복합양식하였을 때, 이들 어종의 성장률을 조사하였다. 헥타르당 30,000개체의 밀도로 복합양식하여 성장률을 측정하였으며, 혼합조성비는 다음과 같다: 실험구(treatment) 1은 pangasiid catfish와 silver carp을 1:1비율로, 실험구 2는 pangasiid catfish와 cata를 1:1비율로, 실험구 3과 4는 pangasiid catfish, silver carp과 catla를 각각 2:1:1과 3:2:1비율로 복합양식하였다. 양식환경에 영향을 주는 수온, 투명도, 용존산소량, pH, NO₃-N, PO₄-P, 엽록소 a와 같은 몇몇 물리화학적, 생물학적 요인과 플랑크톤의 군집을 정기적으로 조사하였다. 어류의 성장속도는 비 성장율(specific growth rate), 일간 체중 증가(daily weight gain)와 체중증가 비율(percent weight gain)을 측정하였다. Pangasiid catfish의 성장률과 사료이용률은 모든 실험구에서 유사하게 나타났다. Silver carp의 성장률은 모든 실험구에서 유의한 차이를 나타내었는데(p<0.05), 양식밀도가 증가할수록 성장률이 현저하게 감소하였으며, Silver carp의 밀도가 가장 낮은 복합양식 조성인 pangasiid catfish, silver carp과 catla의 비율이 각각 2:1:1일 때, silver carp의 성장률이 가장 높게 나타났다. Silver carp의 밀도가 증가할수록 catla의 성장률이 현저하게 감소하는 것으로 나타나, catla의 성장률은 silver carp의 유무에 영향을 받는 것으로 판단되었다. Catla의 성장률은 pangasiid catfish와 calta의 비율이 1:1일 때, 가장 높은 것으로 나타났다. 양식수율과 경제적 이익은 실험구에 따라 현저하게 다른 양상을 보였다(p<0.05). 가장 높은 양식수율과 경제적 이익은 pangasiid catfish, silver carp과 catla를 각각 2:1:1 비율로 양식한 결과에서 얻어졌는데, 이는 silver carp의 높은 성장률과 catla의 시장 단가가 높은 것에 기인하는 것으로 나타났다. 모든 실험구의 수질 상태는 양식기간 동안 적절한 수준을 유지하였으며, 각각의 값은 모든 실험구에서 뚜렷한 차이를 보이지 않았다(p<0.05). The growth performance of pangasiid catfish (Pangasius hypophthalmus), silver carp (Hypophthalmichthys molitrix) and catla (Catla catla) was evaluated in polyculture at varied combinations and stocking ratios in earthen pond for a period of 16 weeks. Combinations of pangasiid catfish, silver carp and catla with the total density of 30,000 fish per hectare were evaluated. A commercial pelleted feed containing 28% crude protein and 6% lipid was fed only to pangasiid catfish at the rate of 8% of body weight during the first six weeks, 6% during the second six weeks and 4% thereafter twice daily. The growth and feed utilization efficiency of pangasiid catfish were found similar in all treatments. The growth of silver carp was markedly decreased upon the increase of its own stocking density. The highest growth of silver carp achieved in polyculture of pangasiid catfish, silver carp and catla at 2:1:1 ratio where density of silver carp was lowest. The growth of catla was found to be affected by the presence of silver carp. The growth rate of catla markedly declined with the increase of silver carp density. The highest growth of catla obtained in polyculture of pangasiid catfish only with catla stocked at 1:1 ratio. The highest yield and economic return achieved in polyculture of pangasiid catfish, silver carp and catla at the ratio of 2:1:1 due to higher growth of silver carp and higher market value of catla. The water quality conditions in all different treatment ponds were within optimum ranges throughout the culture period and the values did not show any significant variation (p>0.05) among the treatments.