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장천학,김현돈,조병기,이장우,Jang, Cheon Hak,Kim, Hyeon Don,Jo, Byeong Gi,Lee, Jang U Korean Chemical Society 1995 Bulletin of the Korean Chemical Society Vol.16 No.1
Interpolymer complex formation between basic polypeptide poly(L-proline) Form Ⅱ (PLP(Ⅱ)) and acidic polypeptides poly(L-glutamic acid) (PLGA) and poly(L-aspartic acid)(PLAA) has been studied in water-methanol (1:2 v/v) mixed-solvent by viscometry, potentiometry, light scattering and circular dichroism (CD) measurements. It has been found that polymer complexes between PLP(Ⅱ) and PLGA (or PLAA) are formed via hydrogen bonding with a stoichiometric ratio of PLP(Ⅱ)/PLGA (or PLAA)=1:2 (in unit mole ratio) and that PLP(Ⅱ) forms polymer complex more favorably with PLGA than with PLAA. In addition, the minimum (for pH 5.0) and the maximum (for pH 3.2) in reduced viscosity of dilute PLP(Ⅱ)-PLGA mixed solutions are observed at 0.67 unit mole fraction of PLGA (i.e., [PLP(Ⅱ)]/[PLGA]=1/2). These findings could be explained in terms of molecular structure (or conformation) of the complementary polymers associated with the complex formation.
석고(石膏)의 본초고증(本草考證) 및 좌용석고(左用石膏)의 품질(品質)
이장천,Lee Jang-Cheon 대한한의학방제학회 2003 大韓韓醫學方劑學會誌 Vol.11 No.2
Objectives: This study has been done to make sure the Gypsum's standardization in medical use. Gypsum has a quality for removing pathogenic heat from the stomach meridian function and headache. Methods: I studied the herbalogical Gypsum and compared its' compositions and character before and after high temperature burning. Results: Gypsum and Lishi(理石) are the sulfate which is made of $CaSO_4{\cdot}2H_2O$, Feldspar is a Calcite, Hanshuishi(寒水石) and Ningshuishi(凝水石) are not a Gypsum but a Magnesium Sulfate($MgSO_4$) and Kalium Sulfate($K_2SO_4$). Conclusion: Real Gypsum is supposed to be Yiong cheng${\setminus}$(應城) Gypsum. Chemical edible Gypsum isn't appropriated to be used in medicine.
『동인수혈침구도경(銅人輸穴鍼灸圖經)』과 『침구자생경(鍼灸資生經)』에 수록된 침구금기혈 연구
이장천 ( Jang Cheon Lee ),서병관 ( Byung Kwan Seo ),권선오 ( Sun Oh Kwon ),박히준 ( Hi Joon Park ),함대현 ( Dae Hyun Hahm ),이혜정 ( Hye Jung Lee ),김승태 ( Seung Tae Kim ) 대한경락경혈학회 2012 Korean Journal of Acupuncture Vol.29 No.1
Objectives : This research was projected to verify the validities of needling or moxibustion- prohibited acupoints in Illustrated Manual for the Practice of Acupuncture and Moxibustion with the Help of a Bronze Figure bearing Acupuncture Points (IMPAM) and The Classic of Supplementing Life with Acupuncture and moxibustion (CSLAM). Methods : We investigated acupoints which have prohibitions, notices or adverse events when performing needling or moxibustion in IMPAM and CSLAM, then verified it in various literatures and today`s medical knowledge. Results : In IMPAM, 2 acupoints were prohibited from both needling and moxibustion, 22 acupoints were prohibited from needling and 29 were prohibited from moxibustion. In CSLAM, 3 acupoints were prohibited from both needling and moxibustion, 24 acupoints were prohibited from needling and 31 were prohibited from moxibustion. Most of the prohibitions, the notices and the adverse events of the acupoints written in IMPAM and CSLAM had medical or philological bases, and the number of them increased compared to that in A-B Classic of Acupuncture and Moxibustion (ABCAM). Conclusions : The prohibitions, the notices and the adverse events when performing acupuncture or moxibustion in IMPAM and CSLAM reflected the medical experience and knowledge of the time. And the knowledge was increased compared to that in ABCAM.
용골(龍骨)(부용치)(附龍齒)의 품질표준(品質標準) 및 포제전후의 성분비교(成分比較)
이장천,Lee Jang-Cheon 대한한의학방제학회 2003 大韓韓醫學方劑學會誌 Vol.11 No.1
Objectives: This experimental study has been done to compare the Os Draconis composition before and after using processing method. Os Draconis has a quality for calming the liver meridian function and relaxation the mind. Methods: I studied the Os Draconis and processed Os Draconis by vinegar to compare the compositions and its' character. Results: Os Draconis is not a dinosaur's bone fossil but a mammal's bone fossil which has a Calcite mineral, an Apatite mineral, $SiO_2\;Al_2$ O, etc. Os Draconis contains a main ingredients CaO>50.00%. Processed Os Draconis which is heated and soaked in vinegar changes to weak condition Conclusion: Os Draconis is supposed to be a mammal's bone fossil. Some Os Draconis has a radioactive substance like a U, Th so we pay heed to deal with it in a medical clinic.
이장천,Lee Jang-Cheon 대한한의학방제학회 2004 大韓韓醫學方劑學會誌 Vol.12 No.1
Objectives: This study has been done to compare the Haematite's composition before and after using processing method and to clarify its quality and naming through the historical herbal books. Methods: I studied the Haematite and processed Haematite using physical and chemical methods which contain microscopic analysis, X-ray diffraction analysis, thermal analysis, XRF, ICP, etc, to compare the compositions and its characters. Results: Haematite is a metallic oxide(Hematite, $Fe_2O_3$). Haematite contains a main ingredients of crude Haematite Fe 40.336% - 62.174%, processed Haematite $50.499%{\sim}62.791%$(a theory value is 69.944% the korean pharmacopoeia wants >45%) and small ingredients, also. Conclusion: A radio-element contents of U, Th contain less than average contents of the lithosphere's U 1.8ppm, Th 7.2ppm.
이장천,Lee Jang-Cheon 대한한의학방제학회 2002 大韓韓醫學方劑學會誌 Vol.10 No.1
A therapeutic following confirming symptom(辨證施治) has a proper characteristic in oriental medicine, which can be grasped but by pathological body reflection not by histological or molecular level etiology. It is also able to be selected a prescription by means of clinical trials which promote human body's natural resurgent. Whereas, a therapeutic regimen prescription(定病傳方) has a merit in prescribing a disease to the point. which has been developed and established a therapy method naturally for thousands years. Then, which of the two is the better method in clinic? The answer is a co-exist of the two therapy methods in a matter of developing deciding therapeutic cooperation. To tie a knot, two methods need the opposite one.