Anti‐obesity effect of Liupao tea extract by modulating lipid metabolism and oxidative stress in high‐fat‐diet‐induced obese mice

Liupao tea (LPT) is traditional dark Chinese tea. The effect of LPT extract on high‐fat‐diet‐induced obese mice was investigated systematically. The results showed that LPT extract could reduce body weight and significantly alleviate liver damage and fat accumulation. LPT could also decrease the levels of alanine aminotransferase (ALT), aspartate transaminase (AST), alkaline phosphatase (AKP), total cholesterol (TC), triglycerides (TG), and low‐density lipoprotein cholesterol (LDL‐C) and increase the level of high‐density lipoprotein cholesterol (HDL‐C) in the liver. It also decreased the serum levels of inflammatory cytokines, including tumor necrosis factor alpha (TNF‐α), interferon gamma (IFN‐γ), interleukin (IL)‐1β, and IL‐6 and increased the serum levels of anti‐inflammatory cytokines, including IL‐10 and IL‐4. Moreover, LPT improved the levels of total superoxide dismutase (T‐SOD), glutathione peroxidase (GSH‐Px), and catalase (CAT) and reduced the level of malondialdehyde (MDA) in the liver. Moreover, LPT could upregulate the mRNA and protein expressions of peroxisome proliferator‐activated receptor alpha (PPAR‐α), lipoprotein lipase (LPL), carnitine palmitoyltransferase 1(CPT1), and cholesterol 7 alpha‐hydroxylase (CYP7A1) and downregulate those of PPAR‐γ and CCAAT/enhancer‐binding protein alpha (C/EBP‐α) in the liver. It also increased the mRNA expression of copper/zinc superoxide dismutase (SOD1), manganese superoxide dismutase (SOD2), CAT, gamma‐glutamylcysteine synthetase 1 (GSH1), and GSH‐Px. The components of LPT extract include catechin, rutin, taxifolin, and astragalin, which possibly have a wide range of biological activities. In conclusion, our work verified that LPT extract possessed an anti‐obesity effect and alleviated obesity‐related symptoms, including lipid metabolism disorder, chronic low‐grade inflammation, and liver damage, by modulating lipid metabolism and oxidative stress.     

Anti-inflammatory activities of aqueous extract of Mesona procumbens in experimental mice

BACKGROUND: Mesona procumbens is consumed as a herbal drink and jelly‐type dessert in Taiwan. The aim of this study was to determine the mechanism of anti‐inflammatory activities of the aqueous extract of M. procumbens (AMP) using the λ‐carrageenin (Carr)‐induced mouse paw oedema model. The fingerprint chromatogram of AMP was obtained by high‐performance liquid chromatography (HPLC) analysis. To investigate the anti‐inflammatory mechanism of AMP, the activities of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx) and the level of malondialdehyde (MDA) in paw oedema were monitored. Serum nitric oxide (NO), tumour necrosis factor‐α (TNF‐α) and interleukin‐1β (IL‐1β) were also evaluated. RESULTS: The fingerprint chromatogram from HPLC indicated that AMP contained protocatechuic acid, chlorogenic acid, vanillic acid and caffeic acid. In the anti‐inflammatory test, AMP decreased paw oedema after Carr administration and increased the CAT, SOD and GPx activities and decreased the MDA level in paw oedema at 5 h after Carr injection. AMP also affected the serum NO, TNF‐α and IL‐1β levels at 5 h after Carr injection. Western blotting revealed that AMP decreased the expression of Carr‐induced inducible nitric oxide synthase (iNOS) and cyclooxygenase‐2 (COX‐2). CONCLUSION: Mesona procumbens has the potential to provide a therapeutic approach to inflammation‐associated disorders. Copyright © 2011 Society of Chemical Industry     

The postprandial inflammatory response after ingestion of heated oils in obese persons is reduced by the presence of phenol compounds

Scope Heating during the process of cooking alters the chemical properties of foods and may affect subsequent postprandial inflammation. We tested the effects of four meals rich in different oils subjected to heating on the postprandial inflammatory metabolism of peripheral blood mononuclear cells (PBMCs). Methods and results Twenty obese participants received four breakfasts following a randomized crossover design, consisting of milk and muffins made with different oils (virgin olive oil (VOO), sunflower oil (SFO), and a mixture of seeds oil (SFO/canola oil) with added either dimethylpolysiloxane (SOD), or natural antioxidants from olive mill wastewater alperujo (phenols; SOP)), previously subjected to 20 heating cycles. Postprandial inflammatory status in PBMCs was assessed by the activation of nuclear NF‐κB, the concentration in cytoplasm of the NF‐κB inhibitor (IκB‐α), the mRNA levels of NF‐κB subunits and activators (p65, IKKβ, and IKKα) and other inflammatory molecules (TNF‐α, IL‐1β, IL‐6, MIF, and JNK), and lipopolysaccharide (LPS) levels. VOO and SOP breakfasts reduced NF‐κB activation, increased IκB‐α, and decreased LPS plasma concentration. SFO increased IKKα, IKKβ, p65, IL‐1b, IL‐6, MIF, and JNK mRNA levels, and plasma LPS Conclusion Oils rich in phenols, whether natural (VOO) or artificially added (SOP), reduce postprandial inflammation, compared with seed oil (sunflower).     

Dill seed extract improves abnormalities in lipid metabolism through peroxisome proliferator‐activated receptor‐α (PPAR‐α) activation in diabetic obese mice

Dill, a small annual herb, is widely used as a flavoring agent in dishes including salads. It has been demonstrated that dill extract and its essential oil show hypolipidemic effects in rats. However, the mechanism of these effects has not been elucidated yet. We found that dill seed extract (DSE) activated peroxisome proliferator‐activated receptor‐α (PPAR‐α), an indispensable regulator for hepatic lipid metabolism, by luciferase assay. Thus, we performed DSE feeding experiments using diabetic obese model KK‐Ay mice to examine the effects of DSE on PPAR‐α activation in vivo. A 4‐week feeding of DSE contained in a high‐fat diet decreased plasma triacylglyceride and glucose levels and increased the mRNA expression levels of fatty acid oxidation‐related genes in the liver. In addition, the DSE feeding as well as bezafibrate (a PPAR‐α potent agonist) feeding increased oxygen consumption rate and rectal temperature. These results indicate that DSE suppresses high‐fat diet‐induced hyperlipidemia through hepatic PPAR‐α activation.     

Accumulation and effects of dietary advanced glycation end products on the gastrointestinal tract in rats

The gastrointestinal (GI) tract represents the first barrier against the penetration of organisms by dietary advanced glycation end products (AGEs), but the tissue accumulation of AGEs and AGE‐induced effects on the GI tract have yet to be completely elucidated. This study aimed to investigate the tissue accumulation of AGEs and AGE‐induced oxidative stress and inflammation in the GI tract of rats after long‐term consumption of AGEs from bread crust (BC). The GI tract was then removed to analyse carboxymethyllysine (CML) and malondialdehyde (MDA) contents, the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH‐Px) and the levels of tumour necrosis factor‐α (TNF‐α) and interleukin‐6 (IL‐6). This study demonstrates that the oral intake of AGEs promotes their accumulation in the GI tract, and AGEs attenuate the first‐line antioxidant defence and stimulate the inflammatory response of the GI tract by downregulating enzymatic antioxidative pathways and increasing inflammatory cytokine levels.     

黄粉虫油对高脂血症小鼠血脂水平及抗氧化能力的影响

目的：探讨黄粉虫油对高脂血症小鼠血脂水平及抗氧化能力的影响。方法：以高脂饲料喂养雄性ICR小鼠,建立高脂血症模型,以不同剂量(5、10、20mL/(kg·d))的黄粉虫油对小鼠进行灌胃,观察各实验组小鼠血脂水平和肝脏抗氧化能力的变化情况。结果：黄粉虫油能显著降低高脂血症小鼠血清总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)浓度,升高高密度脂蛋白胆固醇(HDL-C)的浓度,同时动脉粥样硬化指数(AI) 亦显著降低;黄粉虫油能降低小鼠肝脏丙二醛(MDA)含量,增加肝脏过氧化氢酶(CAT)、超氧化物歧化酶(SOD)及谷胱甘肽过氧化物酶(GSH-Px)的活性,提高肝脏总抗氧化(T-AOC)能力。结论：黄粉虫油具有调节血脂和增强抗氧化功能的作用。     

赶黄草水提物对高脂饮食联合STZ诱导的Ⅱ型糖尿病大鼠的降血糖作用

研究了赶黄草水提取物对高脂饮食联合链脲佐菌素(STZ)诱导的Ⅱ型糖尿病大鼠的降血糖作用。随机选取10只SD大鼠作为正常对照组(NC),其余大鼠经4 w高脂饮食喂养后,腹腔注射小剂量STZ(35 mg/kg)建立Ⅱ型糖尿病大鼠模型。造模成功后随机分为:模型组(MC)、二甲双胍阳性对照组(PC,500 mg/kg/d)、赶黄草水提物组(PCP,545 mg/kg/d),每组10只。干预4 w后,检测各组大鼠血糖、血脂、抗氧化水平,肝、胰HE染色观察组织病变。结果表明,与模型组相比,赶黄草水提物组空腹血糖(FBG)、糖化血红蛋白(Hb A1c)水平分别降低43.93%、77.05%(p<0.05),血清高密度脂蛋白胆固醇(HDL-C)、谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)分别升高80.00%、76.32%、42.75%、32.12%(p<0.05),丙二醛(MDA)含量降低26.89%(p<0.01)。赶黄草水提物能显著降低Ⅱ型糖尿病大鼠血糖水平,改善胰岛素抵抗,其机制可能与其发挥抗氧化作用,减少氧化应激有关。     

Antioxidant and anticytokine effects of bovine colostrum in intestinal ischemia/reperfusion injured rat model

The objective of this study was to examine antioxidant and anticytokine effects of bovine colostrum (BC) in an intestinal ischemia/reperfusion injured rat model. Forty Sprague-Dawley rats were induced intestinal ischemia/reperfusion injury. After reperfusion the rats were given BC, 0.9% saline or low fat milk (LFM) orally. The antioxidative activities using superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), catalase (CAT), and malondialdehyde (MDA) were analyzed in this study. Serum cytokine levels [tumor necrosis factor (TNF)-α, interlukin (IL)-1β, IL-6, and IL-10] were also checked. SOD (1.53±0.23 U/mg of protein), GSH-PX (7.62±0.66 U/mg of protein), and CAT (42.16±3.16 U/mg of protein) activities increased and MDA level (0.58±0.05 mmol/mg of protein) decreased significantly in rats fed BC compared to rats fed saline or LFM (p<0.05). TNF-α (7.63±1.31 pg/mL), IL-1β (49.43±4.43 pg/mL), and IL-6 (62.85±7.60 pg/mL) in rats fed BC were significantly lower than saline or LFM (p<0.005), whereas there was no significant difference in IL-10 (220.3±22.06 pg/mL) between experimental groups. In conclusion, BC may have both antioxidative and anticytokine effects in an intestinal ischemia/reperfusion rat model.     

大豆异黄酮对良性前列腺增生大鼠抗氧化作用的研究

目的：本研究探讨补充不同剂量大豆异黄酮对大鼠前列腺增生的影响,并初步探讨大豆异黄酮的抗氧化作用与抑制前列腺增生的关系。方法：应用丙酸睾酮诱导大鼠前列腺增生,观察正常对照组、模型组、低、中、高剂量大豆异黄酮组大鼠前列腺的湿重、前列腺指数、前列腺组织匀浆中TAOC、GSH、CAT、SOD等各项抗氧化指标和MDA水平的改变。结果：低、中、高剂量组大鼠前列腺湿重及前列腺指数均显著低于模型组(p＜0.05);与模型组相比,低中高剂量组的CAT、TAOC、SOD、GSH显著升高,而MDA显著降低(p＜0.05)。中剂量组效果最为明显。结论：大豆异黄酮可以显著抑制大鼠前列腺增生,明显提高大鼠的抗氧化能力。大豆异黄酮可能对预防和辅助治疗前列腺增生有一定的作用。     

High‐fat Diet‐induced Intestinal Hyperpermeability is Associated with Increased Bile Acids in the Large Intestine of Mice

Metabolic syndrome is characterized by low‐grade chronic systemic inflammation, which is associated with intestinal hyperpermeability. This study examined the effects of 3 high‐fat diets (HFDs) composed of different fat sources (soybean oil and lard) on the intestinal permeability, tight junction (TJ) protein expression, and cecal bile acid (BA) concentrations in mice, and then analyzed their interrelations. C57/BL6 mice were fed the control diet, HFD (soybean oil), HFD (lard), and HFD (mix; containing equal concentrations of soybean oil and lard) for 8 wk. Glucose tolerance, intestinal permeability, TJ protein expression, and cecal BA concentration were evaluated. Feeding with the 3 HDFs similarly increased body weight, liver weight, and fat pad weight, and induced glucose intolerance and intestinal hyperpermeability. The expression of TJ proteins, zonula occludens‐2 and junctional adhesion molecule‐A, were lower in the colons of the 3 HFD groups than in the control group (P < 0.05), and these changes appeared to be related to intestinal hyperpermeability. Feeding with HFDs increased total secondary BA (SBA) and total BA concentrations along with increases in some individual BAs in the cecum. Significant positive correlations between intestinal permeability and the concentrations of most SBAs, such as deoxycholic acid and ω‐muricholic acids, were detected (P < 0.05). These results suggest that the HFD‐induced intestinal hyperpermeability is associated with increased BA secretion. The abundance of SBAs in the large intestine may be responsible for the hyperpermeability.     

火麻仁油—藻油复配剂对混合型高脂血症大鼠的降脂及抗氧化作用

探讨火麻仁油—藻油复配剂对混合型高脂血症大鼠的降脂作用及抗氧化作用。将50只大鼠随机分为5组,每组10只,分别为空白对照组、模型对照组和复配剂低剂量组、中剂量组及高剂量组。高脂饲料喂养并给予相应药物灌胃后,测大鼠体重、睾脂肪垫重、肾周脂肪垫重、脂体比,检测血脂水平、血清的丙二醛(MAD)、谷胱甘肽(GSH)含量及过氧化超氧化物歧化酶(SOD)的活性。结果表明:模型组大鼠与正常组比较,体重、睾脂肪垫重、肾周脂肪垫重、脂体比显著增加,TG、TC含量显著升高,HDL-C显著降低,MDA显著升高,SOD、GSH、GSH-Px显著降低(P0.01或P0.05)。与模型组比较,火麻仁油藻油高、中、低剂量组大鼠体重、睾脂肪垫重、肾周脂肪垫重、脂体比显著降低,MDA含量显著降低,SOD、GSH、GSH-Px含量显著升高(P0.01或P0.05)。火麻仁油—藻油复配剂具有调节血脂和抗氧化作用。     

Camphor Tree Seed Kernel Oil Reduces Body Fat Deposition and Improves Blood Lipids in Rats

The total and positional fatty acid composition in camphor tree (Cinnamomum camphora) seed kernel oil (CKO) were analyzed, and for the first time, the effect of CKO on body fat deposition and blood lipids in rats was studied. The major fatty acids in CKO were determined to be decanoic acid (C10:0, 51.49%) and dodecanoic acid (C12:0, 40.08%), and uniformly distributed at Sn‐1, 3, and Sn‐2 positions in triglyceride (TG). Rats were randomly divided into control, CKO, lard, and soybean oil groups. At the end of the experiment, levels of blood lipids and the fats of abdomen in the rats were measured. The main organ were weighted and used for the histological examination. The results showed that body weight and fat deposition in CKO group were significantly lower than the lard and soybean groups. Moderate consumption of CKO was found to improve the levels of blood TG and low density lipoprotein cholesterol.     

不同种类高膳食油脂对小鼠血脂、肝脂及尿酸的影响

为了探讨猪油、植物油及其调和油对血脂、肝脂及血尿酸的影响,评估其对特殊人群的健康潜在风险,本文研究以小鼠为模型,模拟居民用油习惯,将50只8周龄雄性C57BL/6J小鼠随机均分为葵花籽油组(SSO)、豆油组(SO)、猪油组(LO)、葵花籽油与猪油调和油组(SSO-L)、豆油与猪油调和油组(SO-L)5组,模拟我国部分人群(5%~10%)日均烹调油脂高摄入水平(95g/d),每组日粮中分别添加10.5%的不同油脂,饲喂8周后采集血液和肝脏组织,检测血清和肝脏指标。结果显示,相比于其他各组,LO组在体脂和血脂方面都有显著或极显著升高(p0.05,p0.01)。而SSO-L组和SO-L组在肝脂方面显著高于对应的SSO组和SO组(p0.05)。同时,SSO-L组和SO-L组的SUA和肝脏XOD水平都显著高于LO组(p0.05)。表明在95 g/d的膳食油脂摄入水平下,猪油会极大增加肥胖和患脂肪肝病的风险。葵花籽油与猪油调和油和豆油与猪油调和油也会通过升高尿酸水平来增大痛风和脂肪肝的患病风险。此外,长期以该水平摄入这两种调和油对肝脏功能也有明显损伤。在该摄入水平下,豆油为较优选择。     

Study of the role of the feeding factor in the development of induced experimental mammary cancer in rats

It is studied the influence of two types of experimental diets on rats origin mammary tumors. The first diet was enriched by pig's fat and 2nd diet contained soybean protein and induced N-nitrozo-N-methylurea (MNM). The tumors of rat's mamma were induced by intramammary injections of N-nitrozo-N-methylurea in area of the 2nd left mamma in dose 2.5 mg per rat once a week during 5 weeks. The rats of control group were not exposed to any additional influences except for a carcinogenic one. The rats of first and second subgroup were fed with lard (50 mg/kg) and soybean protein (200 mg/kg) during 30 weeks. It was shown that lard evinced cocarcinnogenic action on the origin of mammary tumors to stimulating their growth and development while the soybean protein considerably reduced frequency of mammary tumors and slowed the time of their appearance.     

注射级玉米卵磷脂对高脂饮食大鼠的降血脂作用

探究注射级玉米卵磷脂（CLFI）对高脂膳食诱导的大鼠的降血脂作用。将60 只雄性SD大鼠随机分为6 组,即空白对照组、高脂模型组、阳性对照组（1.2 g/kg大豆卵磷脂）和CLFI高（2.4 g/kg）、中（1.2 g/kg）和低（0.6 g/kg）剂量组。除空白对照组给予基础饲料外,其余各组均给予高脂饲料,喂养2 周后开始对阳性对照组和CLFI各剂量组连续灌胃给药6 周,每天1 次。空白对照组和高脂模型组给予蒸馏水10 mL/kg。试验结束后考察大鼠血清血脂水平变化,检测大鼠体重、腹腔脂肪蓄积系数（AFC）、血清及肝脏中超氧化物歧化酶（SOD）活力和丙二醛（MDA）水平等指标,并观察肝脏的组织形态变化。结果表明：CLFI能有效抑制高脂膳食诱导大鼠的体重增长,降低血清中甘油三酯（TG）、总胆固醇（TC）、低密度脂蛋白胆固醇（LDL-C）、MDA水平和动脉粥样硬化指数（AI）、血脂综合指数（LCI）,并且降低AFC和肝脏中MDA水平;此外,高密度脂蛋白胆固醇（HDL-C）和SOD水平都有不同程度的提升,肝脏脂肪变性情况也得到改善。CLFI对高脂血症大鼠具有较好的降血脂和预防肝脏脂肪变性的作用,可为CLFI后续的开发和产业化应用提供一定的理论依据。     

Hypolipidemic Activity of Peony Seed Oil Rich in α‐Linolenic,is Mediated Through Inhibition of Lipogenesis and Upregulation of Fatty Acid β‐Oxidation

Peony seed oil (PSO) is a new resource food rich in α‐Linolenic Acid(ALA) (38.66%). The objective of this study was to assess the modulatory effect of PSO on lipid metabolism. Lard oil, safflower oil (SFO), and PSO were fed to wistar rats with 1% cholesterol in the diet for 60 d. Serum and liver lipids showed significant decrease in total cholesterol (TC), triglyceride (TG), and low density lipoprotein‐cholesterol (LDL‐C) levels in PSO fed rats compared to lard oil and SFO fed rats. ALA, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), contents were significantly increased, whereas linoleic acid (LA), arachidonic acid (AA) levels decreased in serum and liver of PSO fed rats. Feeding PSO increased ALA level and decreased n‐6 to n‐3 polyunsaturated fatty acid (PUFA) ratio. The hypolipidemic result of PSO indicated that PSO participated in the regulation of plasma lipid concentration and cholesterol metabolism in liver. The decreased expression of sterol regulatory element‐binding proteins 1C (SREBP‐1c), acetyl‐CoA carboxylase (ACC), and fatty acid synthase (FAS)‐reduced lipid synthesis; Activation of peroxisome proliferator–activator receptor (PPARα) accompanied by increase of uncoupling protein2 (UP2) and acyl‐CoA oxidase (AOX) stimulated lipid metabolism and exerted an antiobesity effect via increasing energy expenditure for prevention of obesity.     

Effects of dietary fat level on the xenobiotic metabolism enzymes activity and antioxidant enzymes in rats

Male Wistar rats received fat-free diet or diets containing 5, 10 and 30% of fat (sunflower oil + lard, 1:1) for 4 weeks. The direct relationship between dietary fat level and ethoxyresorufin O-dealkylase activity of CYP1A1, methoxyresorufin O-dealkylase activity of CYP1A2, pentoxyresorufin O-dealkylase activity of CYP2B1 and testosterone 6beta-hydroxylase activity of CYP3A was found. Activities of key enzymes of phase II xenobiotic metabolism (total activity of glutathione transferase, activity of UDP-glucuronosyle transferase) and antioxidant enzymes (catalase, glutathione peroxidase, glutathione reductase, paraoxonase-1 and heme oxygenase-1) also increased with higher dietary fat level.     

原花青素对糖尿病大鼠肾的保护作用

本文主要研究了原花青素(PC)对糖尿病大鼠肾脏的保护作用,并初步探讨其作用机制。实验中采用高脂高糖饲料喂养联合链脲佐菌素(STZ)损伤建立糖尿病大鼠模型。将造模大鼠按照体重随机分为模型组和实验组,同时设立正常组。实验组,每日腹腔注射原花青素150 mg/kg,其余2组腹腔注射等体积的生理盐水,连续给药4周后,检测血糖(BG)、总胆固醇(TC)、三酰甘油(TG)及肾脏组织中丙二醛(MDA)、蛋白羰基化(PCO)、超氧化物歧化酶(SOD)及过氧化氢酶(CAT)的活性,光镜观察肾组织结构。结果表明,与正常组相比,模型组TC、TG显著升高了4.02倍和6.88倍(p0.01),肾脏组织中的SOD活性降低27.88%,CAT活性降低了17.61%(p0.01),肾脏组织MDA、PCO含量显著升高了51.10%和81.36%(p0.01);与模型组相比,实验组大鼠血糖、TC和TG水平明显降低了50.84%、55.70%和70.52%(p0.01),肾脏组织中的SOD、CAT活性明显升高了26.05%和12.97%(p0.01),肾脏组织MDA、PCO含量显著降低到21.54%和11.86%(p0.01)。病理切片显示,PC保护可减轻STZ引起的肾小球萎缩等病理损伤。由结果可知,原花青素对糖尿病大鼠肾具有一定的保护作用,其机制可能与其抗氧化作用有关。     

三种动物油脂对大鼠急性胃粘膜损伤的影响

目的:研究三种动物油脂对乙醇致大鼠胃粘膜损伤的影响。方法:分别以低（500 mg/kg）、高剂量（850 mg/kg）的鹿油、牛油、猪油对大鼠连续灌胃30 d后,除正常组外,其余各组大鼠灌胃给予无水乙醇1.0 mL/只,1 h后麻醉,心脏取血,取胃组织并称重,对大鼠胃粘膜进行形态学观察、组织病理学检查以及急性损伤指标的测定,并检测各组大鼠血清中超氧化物歧化酶（SOD）活力、谷胱甘肽过氧化物酶（GSH-Px）及丙二醛（MDA）含量,利用ELISA法测定血清中肿瘤坏死因子α（TNF-α）、白介素-6（IL-6）的含量变化,并用RT-PCR技术检测促红细胞生成素（EPO）和促红细胞生成素受体（EPOR）的mRNA表达水平。结果:与模型组相比,各给药组大鼠在各时期体重均无明显变化,鹿油预处理组大鼠胃重量/体质量极显著降低(P<0.001),胃粘膜表面较少出血带且出血带较细,细胞排列紧密有序,炎性浸润减少,胃粘膜充血面积、损伤积分指数均极显著降低(P<0.001),能极显著提高GSH-Px活力、SOD活性(P<0.01)并显著降低MDA水平(P<0.05),进而提高机体抗氧化能力来保护胃黏膜,鹿油高度显著降低血清中炎症因子TNF-α和IL-6水平,能够调控乙醇对胃粘膜造成损伤所产生的炎症因子,使EPO和EPOR的mRNA表达降低;牛油预处理组大鼠胃粘膜表面多条细长出血带,颜色略深,细胞排列较为有序,胃粘膜充血面积、损伤积分指数降低,可极显著提高SOD活力(P<0.001)、明显降低MDA水平来提升抗氧化能力保护胃黏膜;猪油预处理组大鼠胃粘膜表面有多条较宽出血带,颜色较深,对急性胃粘膜损伤无明显影响。结论:三种动物油脂对急性胃粘膜损伤的保护作用依次是:鹿油>牛油>猪油,鹿油对大鼠急性胃粘膜损伤具有明显保护作用,牛油保护作用较弱,猪油则无明显保护作用。