1.Evaluation of fat sources (lecithin, mono-glyceride and mono-diglyceride) in weaned pigs: Apparent total tract and ileal nutrient digestibilities.
Jin Ho CHO ; Ying Jie CHEN ; Jong Sang YOO ; Wan Tae KIM ; Il Byung CHUNG ; In Ho KIM
Nutrition Research and Practice 2008;2(2):130-133
This study was conducted to investigate the effects of lecithin, mono-glyceride and mono-diglyceride on apparent total tract and ileal nutrient digestibilities in nursery pigs. Twenty [(Landrace x Yorkshire) x Duroc] barrows were surgically fitted with simple T-cannulas. Dietary treatments included 1) CON (basal diet: soy oil), 2) LO (lecithin 0.5%), 3) MO (mono-glyceride 0.5%), 4) MG (mono-glyceride 1.0%) and 5) MDG (mono-diglyceride 1.0%). In apparent total tract nutrient digestibility, dry matter (DM) and gross energy (GE) digestibilities of MDG treatments were higher than LO and MG treatments (p<0.05). In nitrogen (N) digestibility, LO treatment showed the lowest compared to others (p<0.05). The digestibility of crude fat was higher in MDG treatment than CON and LO treatments (p<0.05). In apparent ileal nutrient digestibility, DM digestibility was higher in MDG treatment than LO and MG treatments (p<0.05). GE digestibility was higher in MDG treatment than LO, MO and MG treatments (p<0.05). N digestibility of MDG treatment was greater than LO treatment (p<0.05). Also, the digestibility of crude fat was higher in MDG treatment than CON and LO treatments (p<0.05). In conclusion, mono-diglyceride can increase apparent total tract nutrient and apparent ileal nutrient digestibilities of DM, GE, N and crude fat.
Lecithins
;
Nitrogen
;
Nurseries
;
Swine
2.A study on the lipids of Chinese liverfluke, Clonorchis sinensis.
Soon Hyung LEE ; Chul Yong SONG ; Byong Ha CHO
The Korean Journal of Parasitology 1977;15(2):109-114
The present study was undertaken to observe the quality and quantity of lipids in the adult worms of Chinese liverfluke, Clonorchis sinensis. Lipid extraction was done by the methods of Folch et a1. (l957) and Kenny (1952), and then the extracted lipid fractions of the worm were separated by thin layer chromatography. Those fractions were also subjected to perform the quantitative analyses of glycerides, cholesterols and phospholipids. The results obtained were summarized as follows: Total amount of glyceride was 37.56 mg per gram of worm tissue and the amount of monoglyceride was 8.34 mg per gm; diglyceride, 15.46 mg per gm; and triglyceride, 12.86 mg per gm. Total amount of cholesterol was 3.30 mg per gm of worm tissue, and the esterified cholesterol (1.72 mg/gm) was a little more than that of free cholesterol (1.26 mg/gm). The following 8 phospholipids were detected in the worm tissue of C. sinensis, i.e., lysophosphatidylcholine, phosphatidylcholine, phophatidylinositol, sphingomyelin, phosphatidylglycerol, phosphatidylserine, phosphatidylethanolamine and an unknown phospholipid.
parasitology-helminth-trematoda
;
Clonorchis sinensis
;
biochemistry
;
glyceride
;
cholesterol
;
phospholipid
;
lipid
;
lysophosphatidylcholine
;
phosphatidylcholine
;
phophatidylinositol
;
sphingomyelin
;
phosphatidylglycerol
;
phosphatidylserine
;
phosphatidylethanolamine
3.Lecithin: Cholesterol Acyltransferase and Na(+)-K(+)-ATPase Activity in Patients with Breast Cancer.
Hilal Kiziltunc OZMEN ; Seda ASKIN
Journal of Breast Cancer 2013;16(2):159-163
PURPOSE: The aim of this study was to determine whether plasma lecithin:cholesterol acyltransferase (pLCAT) and erythrocyte membrane Na(+)-K(+)-ATPase ase (emNaKATPs) activity have a correlation in breast cancer. This study compared these parameters at time points before and after treatment with radiotherapy. METHODS: The levels of pLCAT and emNaKATPs were assessed in 30 patients with breast carcinoma and 20 control subjects. While emNaKATPs was measured with spectrophotometric method, pLCAT levels was measured using a specific enzyme-linked immunosorbent assay. RESULTS: pLCAT levels, both before and after radiotherapy, were found to be decreased in breast cancer patients than in the controls groups (p<0.001 and p<0.001, respectively). Also, pLCAT levels after radiotherapy were found to be decreased in breast cancer patients than the pLCAT levels before radiotherapy (p<0.001). The emNaKATPs activity were higher in the control group than in the breast cancer patients before/after radiotherapy (RT) (p<0.001 and p<0.001, respectively). At the same time, emNaKATPs activity before RT was higher in the breast cancer patients than emNaKATPs activity after RT (p<0.001). There was a significant correlation between pLCAT and emNaKATPs activity in breast cancer patients receiving radiotherapy (r=0.63, p<0.001), but no correlation between in breast cancer patients before RT and control group (r=0.023, p>0.05). CONCLUSION: The results of the present study demonstrated that decreased pLCAT and emNaKATPs activity levels in breast cancer patients after/before RT than control group. In addition, decreased emNaKATPs activity in breast cancer patients receiving radiotherapy may be due to decreased pLCAT concentrations and RT beam. In our opinion, altered activities of pLCAT and emNaKATPs are linked to the treatment effect of radiotherapy. These data may clarify the development of cell membrane dysfunction and lipid metabolism in breast cancer patients receiving radiotherapy.
Breast
;
Breast Neoplasms
;
Cell Membrane
;
Cholesterol
;
Erythrocyte Membrane
;
Humans
;
Lecithins
;
Lipid Metabolism
;
Plasma
;
Sterol O-Acyltransferase
4.Case reports: treatment of oral soft tissue lesions and wounds with high functional tooth paste made from nanoemulsion gel.
Chang Hoon CHAE ; Dong Ju CHOI ; Hae Young SHIM ; Eun Sun BYUN ; Soon Min HONG ; Yang Ho PARK ; Jun Woo PARK
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2007;33(6):694-700
It is a gel type high functional toothpaste containing vitamin C, E, propolis extract and the rest of herb with a nanoemulsion state. Vitamin C, E is known as the material with an eminent anti-oxidation effect. Propolis is known as the material with an antimicrobial and anti-inflammatory effect. We have been succeeding in making nanoemulsion of vitamin C, E and propolis through the high pressure homogenizer using stable oil and lecithin and the gel type high functional tooth paste were made from nanoemulsion of vitamin C, E and propolis. We observed the process of wound protecting effect and cure effect for a wound of soft tissue, gingival tissue and mucous membrane showing ulcer and inflammation in oral cavity after applying a gel type high functional toothpaste to patient. As a result, the wound were healed very fast and any side effects were not shown. We confirmed that a gel type high functional toothpaste with nanoemulsion of vitamin C, E and propolis extract has good effect not only for wound healing but also for treatment of ulcer-like lesion in oral cavity. So we report our cases with review of literatures.
Ascorbic Acid
;
Humans
;
Inflammation
;
Lecithins
;
Mouth
;
Mucous Membrane
;
Propolis
;
Tooth*
;
Toothpastes
;
Ulcer
;
Wound Healing
;
Wounds and Injuries*
5.Structure charateristics of mitoxantrone transforsomes.
Tong CHEN ; Shixiang HOU ; Biqiong SHI ; Yu ZHENG ; Yiyi SUN ; Yunfei TIAN
Journal of Biomedical Engineering 2005;22(3):555-559
This study sought to clarify the molecular location and the interaction between mitoxantrone and mitoxantrone transforsomes. The anthraquinone of mitoxantrone, a heterocyclic ring that intercalates in the lipid of bilayer, was determined by UV-spectrophotometry and electron probes scan microscopy. Two aminoethylamino side-chains of the drugs fit to the phosphates of lecithin were determined by 8-value, thus the interaction with lecithin was substantiated. Differential scanning calorimetry confirmed that mitoxantrone has remarkable stabilizing effect on the mitoxantrone transforsomes membrane. The mitoxantrone binds tightly to lecithin. So a high degree of encapsulation efficiency and the sustained-release character of mitoxantrone transforsomes are verified.
Anthraquinones
;
chemistry
;
Calorimetry, Differential Scanning
;
Delayed-Action Preparations
;
chemistry
;
Lecithins
;
chemistry
;
Mitoxantrone
;
chemistry
;
Spectrophotometry
6.Efficacy and Safety of Guihuang Formula in Treating Type III Prostatitis Patients with Dampness-Heat and Blood Stasis Syndrome: A Randomized Controlled Trial.
Sheng-Jing LIU ; Ying-Jun DENG ; Yin ZENG ; Ming ZHAO ; Jun GUO ; Qing-He GAO
Chinese journal of integrative medicine 2022;28(10):879-884
OBJECTIVE:
To observe the efficacy and safety of Guihuang Formula (GHF) in treating patients with type III prostatitis and Chinese medicine syndrome of dampness-heat and blood stasis.
METHODS:
Sixty-six patients diagnosed with type III prostatitis with dampness-heat and blood stasis syndrome were randomly divided into the treatment group (GHF) and the control group (tamsulosin) using a random number table, with 33 cases each group. The treatment group received GHF twice a day, and the control group received tamsulosin 0.2 mg once daily before bedtime. Patients in both groups received treatment for 6 weeks and was followed up for 2 weeks. The outcomes included the National Institute of Health Chronic Prostatitis Symptom Index (NIH-CPSI) score, Chinese Medicine Symptoms Score (CMSS), expressed prostatic secretions (EPS) and adverse events (AEs).
RESULTS:
After treatment, the NIH-CPSI total score and domain scores of pain discomfort, urination and quality of life decreased significantly from the baseline in both groups (P<0.05). The CMSS score decreased in both groups (P<0.05). The WBC count decreased and lecithin body count increased in both groups (P<0.05). GHF showed a more obvious advantage in reducing the pain discomfort and quality of life domain scores of NIH-CPSI, reducing the CMSS score, increasing the improvement rate of the WBC and lecithin body counts, compared with the control group (P<0.05). There were no significant differences in decreasing urination domain score of NIH-CPSI between two groups (P>0.05). In addition, no serious AEs were observed.
CONCLUSION
GHF is effective in treating type III prostatitis patients with dampness-heat and blood stasis syndrome without serious AEs. (Registration No. ChiCTR1900026966).
Chronic Disease
;
Hot Temperature
;
Humans
;
Lecithins
;
Male
;
Pain
;
Prostatitis/drug therapy*
;
Quality of Life
;
Tamsulosin
7.Analysis of lecithin-cholesterol acyltransferase cDNA and protein sequence from tree shrew.
Jian ZHANG ; Wu-wei ZENG ; Bao-sheng CHEN ; Gang WU ; Wen-cheng ZHANG ; Ke-man ZHANG
Acta Academiae Medicinae Sinicae 2002;24(2):149-155
OBJECTIVETo acquire cDNA sequence of lecithin-cholesterol acyltransferase (LCAT) from tree shrew and analyze the sequence structure.
METHODSThe first strand cDNA was acquired by reverse transcription using mRNA from tree shrew liver as template. By the method of SMART RACE PCR, tree shrew LCAT cDNA was acquired and deduced its amino acids sequence. The sequence and structure of tree shrew LCAT cDNA and amino acid were analyzed and predicted by the molecular software.
RESULTSTree shrew LCAT cDNA is composed of 1,340 bp, including 2 bp 5' untranslated region (5' UTR), 1,320 bp open reading frame (ORF) which encodes protein precursor of 440 amino acids (24 amino acids signal peptide and 416 amino acids mature peptide), and 18 bp 3' untranslated region (3'UTR). The stop codon is TAA and there is a poly (A) signal sequence AATAAA and a 25 bp poly (A) tail. Tree shrew LCAT cDNA sequence has been accepted by GenBank as a new gene, accession number AF272861 and its homology with human and baboon was 90% and 89%, respectively.
CONCLUSIONThe sequence of LCAT cDNA in tree shrew has high identity with that of human and other experimental animal species.
Amino Acid Sequence ; Animals ; Base Sequence ; DNA, Complementary ; genetics ; Liver ; enzymology ; Molecular Sequence Data ; Open Reading Frames ; genetics ; Phosphatidylcholine-Sterol O-Acyltransferase ; chemistry ; genetics ; Sequence Analysis, Protein ; Tupaiidae
8.Biocompatible Dispersion Methods for Carbon Black.
Hwa KIM ; Kwangsik PARK ; Moo Yeol LEE
Toxicological Research 2012;28(4):209-216
The biological activity of particles is largely dependent on their size in biological systems. Dispersion in the aqueous phase has been both a critical impediment to and a prerequisite for particle studies. Carbon black has been used as a surrogate to investigate the biological effects of carbonaceous particles. Here, biocompatible methods were established to disperse carbon black into ultrafine and fine particles which are generally distinguished by the small size of 100 nm. Carbon black with a distinct particle size, N330 and N990 were suspended in blood plasma, cell culture media, Krebs-Ringer's solution (KR), or physiological salt solution (PSS). Large clumps were observed in all dispersion preparations; however, sonication improved dispersion - averaged particle sizes for N330 and N990 were 85.0 +/- 42.9 and 112.4 +/- 67.9 nm, respectively, in plasma; the corresponding sizes in culture media were 84.8 +/- 38.4 and 164.1 +/- 77.8 nm. However, sonication was not enough to disperse N330 less than 100 nm in either KR or PSS. Application of Tween 80 along with sonication reduced the size of N330 to less than 100 nm, and dispersed N990 larger than 100 nm (73.6 +/- 28.8 and 80.1 +/- 30.0 nm for N330 and 349.5 +/- 161.8 and 399.8 +/- 181.1 nm for N990 in KR and PSS, respectively). In contrast, 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) exhibited little effect. Electron microscopy confirmed the typical aciniform structure of the carbon arrays; however, zeta potential measurement failed to explain the dispersibility of carbon black. The methods established in this study could disperse carbon black into ultrafine and fine particles, and may serve as a useful model for the study of particle toxicity, particularly size-related effects.
1,2-Dipalmitoylphosphatidylcholine
;
Carbon
;
Cell Culture Techniques
;
Culture Media
;
Microscopy, Electron
;
Particle Size
;
Plasma
;
Polysorbates
;
Silicones
;
Sonication
;
Soot
9.High-Density Lipoprotein, Lecithin: Cholesterol Acyltransferase, and Atherosclerosis.
Alice OSSOLI ; Chiara PAVANELLO ; Laura CALABRESI
Endocrinology and Metabolism 2016;31(2):223-229
Epidemiological data clearly show the existence of a strong inverse correlation between plasma high-density lipoprotein cholesterol (HDL-C) concentrations and the incidence of coronary heart disease. This relation is explained by a number of atheroprotective properties of HDL, first of all the ability to promote macrophage cholesterol transport. HDL are highly heterogeneous and are continuously remodeled in plasma thanks to the action of a number of proteins and enzymes. Among them, lecithin:cholesterol acyltransferase (LCAT) plays a crucial role, being the only enzyme able to esterify cholesterol within lipoproteins. LCAT is synthetized by the liver and it has been thought to play a major role in reverse cholesterol transport and in atheroprotection. However, data from animal studies, as well as human studies, have shown contradictory results. Increased LCAT concentrations are associated with increased HDL-C levels but not necessarily with atheroprotection. On the other side, decreased LCAT concentration and activity are associated with decreased HDL-C levels but not with increased atherosclerosis. These contradictory results confirm that HDL-C levels per se do not represent the functionality of the HDL system.
Animals
;
Atherosclerosis*
;
Cholesterol*
;
Coronary Disease
;
Humans
;
Incidence
;
Lecithins*
;
Lipoproteins*
;
Lipoproteins, HDL
;
Liver
;
Macrophages
;
Plasma
;
Sterol O-Acyltransferase*
10.Effects of Culture Condition on Secretion of Phospholipase from Candida albicans.
Woon Seob SHIN ; Kyoung Ho LEE ; Joo Young PARK ; Choon Myung KOH
Korean Journal of Medical Mycology 1997;2(2):123-128
BACKGROUND: The dimorphic yeast, Candida albicans, is considered as a dangerous opportunistic pathogen in immunocompromised hosts. Several phospholipases of C. albicans are known to be secreted into the culture medium. Phospholipases have been proposed as a virulence factor in the pathogenesis of Candida infections. OBJECTIVE: In order to investigate enzyme production, we examined culture condition of secreted phospholipase production from C. albicans. METHODS: C. albicans ATCC 10231 was cultivated in various media at 37 degrees C for 3 days. Phospholipase activity was measured by fatty acid soap precipitation in plate containing 0.04% lecithin, 0.1 M citrate buffer, pH 4.2 and 1.5% noble agar. RESULTS: Phospholipase was highly induced when C. albicans was cultivated in broth medium (containing glucose 2%, albumin 0.2% and Fe++ ion 0.01%) and Saboulaud's dextrose agar supplemented with 0.01% sodium deoxycholate. CONCLUSION: Highly induction of secreted phospholipase by albumin from C albicans may be play an important role in tissue invasion in the pathogenesis of C. albicans.
Agar
;
Candida albicans*
;
Candida*
;
Citric Acid
;
Deoxycholic Acid
;
Glucose
;
Hydrogen-Ion Concentration
;
Immunocompromised Host
;
Lecithins
;
Phospholipases*
;
Soaps
;
Virulence
;
Yeasts