Abstract:
본 발명은 머리카락 내 24S-히드록시콜레스테롤의 검출방법과 생체 대사산물의 배열에 의한 치매 대사표시자의 평가방법에 관한 것으로서, 더욱 상세하게는 소량의 머리카락을 염기성 조건에서 가수분해한 후, 고체상 추출법으로 24S-히드록시콜레스테롤을 포함한 생체 대사산물들을 정제 및 추출하고, 트리메틸실릴(trimethylsilyl, TMS) 유도체 과정을 거쳐 기체 크로마토그래피-질량분석기로 분석하여 24S-히드록시콜레스테롤의 농도를 측정하여 24S-히드록시콜레스테롤을 검출하는 방법에 관한 것이다. 또한, 머리카락 내에 존재하는 대사산물의 분포경향을 비교하기 위하여 대사산물의 배열에 의한 치매 대사표지자의 평가방법도 포함한다. 따라서, 본 발명은 소량의 머리카락으로부터 24S-히드록시콜레스테롤의 농도와 생체 대사산물들의 분포양상을 비교하여 치매 유무를 평가할 수 있는 기술을 제공할 수 있다. 머리카락, 24S-히드록시콜레스테롤, 검출방법, 대사표지자, 치매
Abstract:
A cured beta-cyclodextrin polymer powder, its preparation method, and a filler for a solid phase extraction containing the cured beta-cyclodextrin polymer powder are provided to extract a steroid hormone present in a living body sample simply and effectively by using the cured beta-cyclodextrin polymer powder. A cured beta-cyclodextrin polymer powder comprises a beta-cyclodextrin polymer prepared by the reaction of a beta-cyclodextrin monomer and epichlorohydrin; and a metal ion which is coated on the surface of the beta-cyclodextrin polymer. Preferably the metal ion is selected from Ca and Na. The cured beta-cyclodextrin polymer powder is prepared by dissolving beta-cyclodextrin in an alkaline aqueous solution and adding epichlorohydrin to it to prepare a beta-cyclodextrin polymer of gel state; dipping the polymer in a metal salt aqueous solution to coat the polymer with a metal ion, thereby preparing a cured beta-cyclodextrin polymer; and washing, drying and pulverizing the obtained polymer.
Abstract:
본 발명은 머리카락 내 콜레스테롤 화합물의 농도 또는 콜레스테롤 화합물의 대사 효소 활성에 대한 계절별 변화를 측정하는 방법 및 이를 활용한 콜레스테롤 관련 질환의 유무, 발병 가능성 또는 호전의 정도를 예측하는 방법에 관한 것이다. 본 발명에 따르면, 한 올의 머리카락만으로도 인체 내 콜레스테롤 화합물 농도의 계절별 변화를 매우 정확히 측정하여 기존의 주기적인 혈액 검사보다 안전하고 손쉬운 방법으로 측정할 수 있다. 또한, 본 발명은 기존의 혈액 시료 채취의 어려움을 보완하고, 실질적으로 건강검진에 적용하여 보다 쉽게 콜레스테롤 대사 변화와 관련되는 질환들을 예측할 수 있는 장점을 갖는다.
Abstract:
The present invention relates to a method for measuring seasonal changes in the concentration of a cholesterol compound in hair or the metabolic enzyme activity of a cholesterol compound and to a method for predicting the occurrence of cholesterol-related diseases, the possibilities of occurrence, or the degree of alleviation. According to the present invention, a seasonal change in the concentration of a cholesterol compound in the human body with just one strand of hair can be very accurately measured so that measurement can be performed more stably and easily than in existing periodical blood tests. Moreover, the method of the present invention reinforces existing difficulties in obtaining blood samples and is effectively applied to checkups so that disease related to cholesterol metabolism can be easily predicted.
Abstract:
본발명은측정된머리카락내 스테로이드호르몬들의농도를통계적인방법으로처리하여각 스테로이드호르몬의농도뿐만아니라그들의대사에관여하는효소들의활성을동시에측정, 비교할수 있는분석방법에관한것이다. 본발명은소량의머리카락으로부터스테로이드호르몬들을효과적으로추출및 분석은물론대사에관여하는스테로이드간의비율을나타냄으로서총체적인대사분포경향을파악할수 있다. 따라서, 스테로이드호르몬대사와관련있는내분비질환및 생물학적변화를평가할수 있는방법으로사용될수 있으며, 특히탈모관련질환에대하여그 응용범위를확장할수 있다.
Abstract:
PURPOSE: A method for evaluating acne based on the detection of dehydroepiandrosterone(DHEA)-sulfate and cholesterol sulfate in hair is provided to confirm the concentration difference of the DHEA-sulfate and the cholesterol sulfate in a normal sample and a sample from an acne patient. CONSTITUTION: Hair is hydrolyzed under a basic condition. A triethylamine buffer solution is used as a developing solvent to eliminate analysis interfering substance from the hair. An analyzing substance is concentrated using a concentrated column. A triethylamine solution and acetonitrile is supplied to the analyzing substance as a developing solvent to obtain the analyzing substance from the concentrated column. The eluted analyzing substance is applied to an analyzing column. The concentrations of DHEA sulfate and cholesterol sulfate are measured using a liquid chromatographic-mass spectrometry.
Abstract:
PURPOSE: A method for analyzing difference of steroid hormone bio metabolite from two sample groups is provided to general metabolism tendency. CONSTITUTION: A method for analyzing difference of steroid hormone bio metabolite from two sample groups comprises: a step of extracting steroid hormone bio metabolite including male hormone, female hormone, corpus luteum hormone, sterol, and adrenal cortical hormone; a step of extracting the extracts again using an organic solvent; a step of measuring concentration of steroid hormone bio metabolite in urine by gas chromatography-mass spectrometry; and a step of comparing the concentration of liver steroid hormone bio metabolite between two samples. The organic solvent is a mixture solvent containing ethyl acetate and normal hexane.
Abstract:
A selective extraction method of a steroid compound using polymerized beta-cyclodextrin is provided to extract various shapes of the steroid hormones from a biological sample effectively through a simple process. A selective extraction method of a steroid compound using polymerized beta-cyclodextrin powder comprises the steps of: adding buffer solution and hydrolase to a liquid sample including the steroid compound; removing a water layer by centrifugation after adding and stirring hardened beta-cyclodextrin powder that beta-cyclodextrin monomer forms a layer structure by being bridged-bonded by epichlorohydrin and metal ions are spread between the layers of the bridged beta-cyclodextrin polymer to the reaction solution; and extracting the steroid compound by applying organic solvents after adding phosphate buffer solution and polar organic solvents, and controlling pH at a range of 9.0 - 10.0.