Clinical characteristics and treatment compounds of obesity-related kidney injury

Disorders in energy homeostasis can lead to various metabolic diseases,particularly obesity.The obesity epidemic has led to an increased incidence of obesityrelated nephropathy(ORN),a distinct entity characterized by proteinuria,glomerulomegaly,progressive glomerulosclerosis,and renal function decline.Obesity and its associated renal damage are common in clinical practice,and their incidence is increasing and attracting great attention.There is a great need to identify safe and effective therapeutic modalities,and therapeutics using chemical compounds and natural products are receiving increasing attention.However,the summary is lacking about the specific effects and mechanisms of action of compounds in the treatment of ORN.In this review,we summarize the important clinical features and compound treatment strategies for obesity and obesityinduced kidney injury.We also summarize the pathologic and clinical features of ORN as well as its pathogenesis and potential therapeutics targeting renal inflammation,oxidative stress,insulin resistance,fibrosis,kidney lipid accumulation,and dysregulated autophagy.In addition,detailed information on natural and synthetic compounds used for the treatment of obesity-related kidney disease is summarized.The synthesis of detailed information aims to contribute to a deeper understanding of the clinical treatment modalities for obesity-related kidney diseases,fostering the anticipation of novel insights in this domain.

Protective effects of Yishen Sanjie Huayu compound on the renal artery disease in rats with IgA nephropathy through ERK/NF-κB pathway

Objective:To observe the effect of Yishen Sanjie Huayu compound prescription on ERK/NF-κB signaling pathway in IgA nephropathy(IgAN)rats,and explore its effect on preventing and treating IgA nephropathy intrarenal arteriole disease.Methods:Fifty-five male SD rats were randomly divided into blank group,model group,ShenfukangⅡcapsule group and Losartan potassium tablet group.Bovine serum albumin(BSA)was used for intragastric administration and carbon tetrachloride(CCl4).IgAN rat model was established by subcutaneous injection and lipopolysaccharide(LPS)tail vein injection.ShenfukangⅡcapsule group and Losartan potassium tablet group were given each drug suspension 2ml/head/d one week after modeling Gavage was started.The blank group and the model group were given an equal volume of normal saline.The 24h urine protein(UTP)of the rats was measured at 4,8,and 12 weeks after the administration,and the blood creatinine(SCr)was measured after 12 weeks.,urea nitrogen(BUN),aldosterone(ADS),angiotensinⅡ(AngⅡ),immunohistochemical Envi-sion System two-step method to detect vascular endothelial growth factor(VEGF)and human matrix in the whole rat kidney and small artery area The expression of metalloproteinase-9(MMP-9),proliferating cell nuclear antigen(PCNA),extracellular regulatory protein kinase(ERK)1/2,nuclear transcription factor-κB(NF-κB),and the small arteries of rat kidney tissue The intima,media,vessel wall/vascular outer diameter value.Results:Compared with the model group,the expressions of VEGF,MMP-9,PCNA,ERK1/2 and NF-κB in kidney tissues of the ShenfukangⅡcapsule group and the Losartan potassium tablet group decreased(P<0.05),24hUTP and SCr,BUN level decreased(P<0.05),kidney tissue damage was alleviated;intima and vessel wall/vascular outer diameter values were significantly reduced(P<0.01),there was no significant difference in ADS between the groups.The AngⅡof the Tanpotassium tablets group was lower than that of the model group(P<0.05).Conclusion:Yishen Sanjie Huayu compound can inhibit the ERK/NF-κB signaling pathway in rats with IgA nephropathy,reduce the levels of VEGF,MMP-9,PCNA,ERK1/2,NF-κB,and inhibit intrarenal arteriole vascular endothelial cells Proliferate and reduce kidney damage.

Experimental Study on Effect of Compound Biejia Ruangan Prescription (复方鳖甲软肝方) on High Resolution Computerized Tomographic Images in Bleomycin Induced Pulmonary Fibrosis Rats

Objective: To study the therapeutic effect of Com pound Biejia Ruangan prescription (CBRP) on rat model with pulmonary fibrosis in duced by bleomycin. Methods: Fifty four male Sprague Dawley rats were rando mly divided into 6 groups (9 rats in each group). From the first day to the 28th day of the experiment, except to those in the sham model control group that were treated with normal saline, the same amount of bleomycin injection as the n ormal saline given to the control group was given through endotracheal instillat ion to all the rats in all the other groups. From the 29th day of the modeling, CBRP solution of different dosages was respectively injected into the rats in th e high, moderate and low CBRP dose group, while equal volume of normal saline w as given to those in the sham model control group and the model control group , and an equal volume of prednisone solution was given to rats in the prednisone group. On the 80th day, the high resolution computerized tomographic (HRCT) images were observed on an equal footing, and HRCT pathology was correlativel y studied. Results: Different HRCT pathological changes were shown in th e rats with pulmonary fibrosis, such as lung consolidation, thickening of interl obular septum and interlobular mesenchyma as well as lobular deformation, nodule shadow, abnormal brochiovascular tract, thickened pleura with irregular junctio n and polished glass like dense shadows. Honeycomb lung was observed in some cases. Pathological sections showed fibrotic proliferation of lung tissues and noticeable pulmonary interstitial fibrosis. CBRP could improve HRCT images of rats with pulmonary fibrosis, and lower fibrotic p roliferation of the lung tissue.Conclusion: CBRP plays its therapeutic role possibly through its effect on the structure of the lung in rats with pulmonary fibrosis.

The Protective Effect of Compound Danshen Dripping Pills on Oxidative Stress after Retinal Ischemia/Reperfusion Injury in Rats

Objective: To investigate the effect of Compound Danshen Dripping Pills (CDDP) on oxidative stress after ischemia/reperfusion (I/R) injury in the rat retina. Methods: Adult male SD rats were randomly divided into 3 groups: sham (group A), I/R (group B), and I/R plus CDDP (group C). Retinal ischemia/reperfusion injury (RIRI) was introduced by increasing the intraocular pressure (IOP) to 110 mmHg for 60 min via cannulation into the anterior chamber. Right after the insult, CDDP was administered intragastrically (450 mg/kg/d) for 7 days. The levels of malondialdehyde (MDA), the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) in the retinal tissues were determined on d1 and d7 after the ischemic insult. Results: Following ischemia, the MDA levels in group B and group C were significantly higher than those in group A (p < 0.01). CDDP significantly lowered MDA levels in group C when compared with group B (p < 0.01). The activities of SOD, GSH-Px and CAT were higher in group A than in group B and group C (p < 0.01). CDDP could increase the activities of SOD, GSH-Px and CAT remarkably in group C when compared with group B (p < 0.01). Conclusion: CDDP can protect the retina from I/R injury through reducing oxidative stress, and thus may be a promising method for the treatment of ischemic retinal disorders.

Protective effects of honey compound syrup on busulfan-induced azoospermia in male rats

Objective:To evaluate the protective effects of honey compound syrup on sperm count and testis tissue in rats.Methods:Thirty rats were randomly assigned to five groups.The control group received 1 mL normal saline with dimethyl sulfoxide intraperitoneally;the busulfan group received busulfan 10 mg/kg body weight at the first and twenty-first days of the experiment via intraperitoneal injection;the last three groups received busulfan 10 mg/kg body weight to induce azoospermia,and then received 1.0,1.5,or 2.0 mg/kg honey compound syrup,respectively,after induction of azoospermia.After administration,the testis and epididymis of all rats were removed.Then,reproductive organ weight and sperm parameters(sperm concentration,epididymal sperm reserve and daily sperm production)were measured.After hematoxylin-eosin staining,seminiferous tubule cells and diameters were assessed.Results:Busulfan damaged the testis tissue and impaired spermatogenesis.Administration of honey compound syrup in three doses improved testis tissue and spermatogenesis.The protective effects of honey compound syrup may relate to the antioxidant properties of honey and other compounds in this syrup.Conclusions:Administration of honey compound syrup could be an ameliorative agent for the side effects of chemotherapy drugs such as busulfan on the male reproductive system.

Effects of Pioglitazone on Renal Mitochondrial calcium and cytochrome C levels in Early Diabetic Nephropathy Rats

Objective: To study the effect of pioglitazone on mitochondrial Ca2+ and cytochrome c (cyt c) in early diabetic rats, and to explore its mechanism of protecting kidney. Methods: 72 DM rats were randomly divided into negative control group (NC group), negative control+ pioglitazone intervention group (NCP group), diabetes group (DM group) and diabetes +pioglitazone intervention group (DMP group). In NCP and DMP groups, pioglitazone was administered to the stomach, blood glucose, renal mass index, 24-h urine protein, glomerular morphologic indice, glomerular base-membrane thickness and other indexes were measured, and the contents of Ca2+ and Cyt C in renal tissue were measured. Results: (1) the renal metabolism index, glomerular morphologic indice, glomerular base-membrane thickness of DM group was significantly higher than that of NC group (P < 0.01). The renal metabolism index, glomerular morphologic indice, glomerular base-membrane thickness of DMP group was significantly lower than that of DM group, the difference between the two groups was significant(P<0.05). (2) in DM group, mitochondrial Ca2+ and cytoplasmic cytc were higher than those in NC group, while mitochondrial cytc was lower than that in control group. There was significant difference between the two groups (P < 0.05). In DMP group, mitochondrial Ca2+ and cytoplasmic cytc were lower than those in DM group, while mitochondrial cytc was higher than that in control group. There was significant difference between the two groups (P <0.05). Conclusion: Pioglitazone treatment can reduce the release of mitochondrial cytochrome C and maintain mitochondrial calcium homeostasis.

Effects of angiotensin-Ⅱ receptor blockers on β-catenin expression in a rat model of experimental streptozotocin-induced early-stage of diabetic nephropathy

Objective： Diabetic nephropathy （DN） is one of the most common causes of end-stage renal failure. The pathogenesis of progressive renal injury is multifactorial and the mechanism by which hyperglycemia causes microangiopathy is still poorly understood. The WNT pathway is activated in DN and regulating β-catenin protein levels is referred to as the canonical Wntβ-catenin pathway. Because the renin angiotensin system has been reported to be an important contributory factor in the pathophysiology of DN, exogenous administration of angiotensin Ⅱ receptor antagonist may be beneficial in counteracting some biochemical or functional changes of DN. The aim of the study was to determine the β-catenin expression and the possible protective effects of irbesartan, an angiotensin Ⅱ type 1 receptor blocker （ARB） in a rat model of streptozotocin（STZ）-induced diabetic nephropathy. Methods： STZ-induced DN in rats was assessed biochemically by measuring urine volume, protein and creatinine clearance as well as Kidney weight/body weight （KW/BW） and the index of mesangial expansion. Three groups of male Sprague-dawley rats were used. The first group consisted of non-diabetic control rats （control）. The second group was the untreated diabetic rats（STZ＋vehicle）. The third group consisted of diabeti rats treated with irbesartan, 50 mg/kg for 12 weeks （STZ＋irbesartan）. Immunohistochemical stainings and real time PCR for β-catenin were performed in renal cortex of rat modals. Results： Marked hyperglycemia, polyuria, proteinuria, renal hypertrophy, mesangial matrix expansion and glomerular hyperfiltration were observed in STZ diabetic rats. The levels of microalbuminuria and KW/BW in the STZ＋irbesartan group were lower than those in the STZ＋vehicle group （P〈0.05）. The up-regulated immunostaining and mRNA expression of β-catenin were decreased in renal cortic of the Irbesartan-treated diabetic group, but there was no significant difference compared to the untreated diabetic group. Conclusion： The data suggest that irbesartan ameliorates proteinuria and renal hypertrophy, charactered damages of STZ-induced early-stage DN in rats, but its effective drug target is not to inhibit the up-regulated expressions of β-catenin.

Therapeutic efficacy of traditional Chinese medicine compound in the treatment of membranous nephropathy: A systematic review and meta-analysis

Objective:Systematic review of the clinical efficacy of medicinal nephropathy in the treatment of membranous nephropathy with the addition of traditional Chinese herbal compound on the basis of hormone and immunosuppressive therapy.Methods:Computer search of China Knowledge Network,Wanfang Database,Weipu Database,China Biomedical Database,PubMed Database、Embase Database、Cochrane Database,collect clinical research on Chinese medicine compound+hormone+immunosuppressive therapy for MN,delete duplicate literature,eliminate non-conformity by reading topic,abstract and full text The literature was included in the exclusion criteria,the data was extracted from the included literature,and the meta-analysis was performed using the stata14.0 software package.Results:The top 6 Chinese medicines used were Astragalus,Poria,Atractylodes,Salvia,Angelica and Chinese Yam.The use of traditional Chinese medicine in the treatment of patients with MN on the basis of hormone and immunosuppressive therapy can improve clinical efficacy[OR=2.90,95%CI(2.27,3.70),P<0.00001]and TCM symptom efficacy[OR=3.10,95%CI(1.91,5.05),P<0.00001],improved TCM syndrome scores[SMD=-0.93,95%CI(-1.34,-0.52),P<0.00001],reduced 24-hour urine protein levels[SMD=-0.90,95%CI(-1.23,-0.57),P<0.00001],increased plasma albumin levels[SMD=1.22,95%CI(0.86,1.58),P=0.000],decreased blood lipid TC levels[SMD=-0.69,95%CI(-0.98,-0.39),P<0.00001],lowering blood lipid TG levels[SMD=-0.75,95%CI(-1.09,-0.41),P<0.0001],in improving renal function BUN levels[SMD=-0.56,95%CI(-0.97,0.14),P=0.008]and Scr levels[SMD=-0.58,95%CI(-0.89,-0.27),P=0.0002],reducing the incidence of adverse reactions[OR=0.25,95%CI(0.17,0.36),P<0.00001].Egger and harbord test results suggest that some indicators have publication bias.Conclusion:The traditional Chinese medicine used is mainly jaundice,and the traditional Chinese medicine for replenishing qi and activating blood is used more frequently.In the basic application of hormone+immunosuppressive agents,Yiqihuoxue Chinese medicine has a good effect on MN,but it is limited to the quality of the included literature.The conclusion needs to be verified by more high-quality studies.

Effect of Tripterine on Notch Signaling Pathway in IgA Nephropathy Rats

The objective of the study was to investigate the effect of tripterine on the Notch signaling pathway in renal tissue of IgA nephropathy rats.SD male rats were divided into the control group,IgA nephropathy model group,benazepril group,1 mg/kg/day tripterine intervention group,and 10 mg/kg/day tripterine intervention group according to the random number table method,with 10 rats in each group.The urinary sediment and 24-h urinary protein quantity were detected by conventional methods.The expressions of Notch1,Jagged1,Hes1,and Hey1 in renal tissue of rats were detected by real-time fluorescent quantitative polymerase chain reaction.IgA nephropathy model was successfully established.The hematuria and proteinuria in model group were higher than those of control group(P<0.05).The expressions of Notch1,Jagged1,Hes1,and hey1 in kidney tissue of IgA nephropathy rats were significantly increased(P<0.05).Compared with the model group,hematuria and proteinuria in the tripterine intervention group were alleviated.The expressions of Notch1,Jagged1,Hes1,and Hey1 in rat renal tissue were decreased(P<0.05).Moreover,the expressions of Notch1,Jagged1,Hes1,and Hey1 in renal tissue of rats in 10 mg/kg/day tripterine intervention group were decreased(P<0.05).Tripterine can decrease the levels of hematuria and proteinuria in IgA nephropathy rats.The expression of the Notch signaling pathway in IgA nephropathy rats is increased by the down-regulation of tripterine,suggesting that tripterine has a certain therapeutic effect on IgA nephropathy rat.Moreover,its role may be realized through this signal pathway so as to provide a new mentality for the diagnosis and treatment of IgA nephropathy.

Effects of Compound α-Ketoacid Tablets on renal function, renal fibrosis indexes and oxidative stress in patients with diabetic nephropathy

Objective: To investigate the effects of Compound α-Ketoacid Tablets on renal function, renal fibrosis indexes and oxidative stress in patients with diabetic nephropathy. Methods: A total of 180 patients with diabetic nephropathy admitted to Nephrology Department of our hospital were randomly divided into control group and observation group, 90 cases in each group. The patients in the control group were given conventional treatment, such as antihypertensive drugs, diet and blood glucose control, and the patients in the observation group were given Compound α-Ketoacid Tablets on the basis of the control group. Renal function, renal fibrosis index and oxidative stress levels were compared between the two groups before and after treatment. Results: After treatment, the levels of serum ALB, BUN, Cr, Hcy, VEGF and MDA in two groups were significantly decreased than those before the treatment, and the levels of ALB, Hcy, VEGF and MDA in the observation group were significantly lower than those in the control group, the difference was statistically significant. After treatment, the levels of serum GFR, HGF, T-AOC and SOD in two groups were significantly increased than that before the treatment, and the levels of HGF, T-AOC and SOD in the serum of the observation group were significantly higher than that in the control group, the difference was significant. Conclusion:The Compound α-Ketoacid Tablets has good effect in the treatment of diabetic nephropathy. It can effectively improve the state of renal fibrosis and reduce the oxidative stress reaction of the patients, so as to achieve the protection of the kidney.

Effects of Lead on pH and Temperature-Dependent Substrate-Activation Kinetics of ATPase System and its Protection by Thiol Compounds in Rat Brain

Lead (Pb) inhibited the activities of Na+ -K+ ATPase (IC50= 2.0×10^(-6) M), K + -Para-Nitrophenyl phosphatase (PNPPase) (IC50= 3.5×10^(-6) M) and [3H]-ouabain binding (IC50 = 4.0×10^(-5) M) in rat brain P2 fraction. A variable temperature or pH significantly elevated the inhibition of Na+-K+ ATPase by Pb in buffered acidic, neutral and alkaline pH ranges. Noncompetitive inhibition with respect to activation of Na+ -K+ ATPase by ATP was indicated by a variation in Vmax values with no significant changes in Km values at any temperature studied. In the presence of Pb, for Na+ -K+ ATPase at pH 6.5 and 8.5, Vmax was decreased with an increase in Km values suggesting a mixed type of inhibition. Sulfhydryl agents such as dithiothreitol (DTT) and cvsteine (Cyst), but not glutathione (GSH) offered varied levels of protection against Pb-inhibition of Na + -K+ ATPase at pH 7.5 and 8.5. The present data suggest that inhibition of Na+ -K+ ATPase by Pb is both temperature and pH-dependent. These results also indicate that Pb inhibited Na + -K + ATPase by interfering with phosphorylation of enzyme molecule and dephosphorylation of the enzyme-phosphoryl complex and exerted an effect similar to that of SH-blocking agents.

Expression of Osteopontin and molecules in EMT of rats with chronic allograft nephropathy

Objective To investigate the expression of OPN, α - SMA,E - cadherin and their correlation in chronic allograft nephropathy ( CAN) rat model,and to explore the possible role of OPN in CAN. Methods Orthotopic renal - transplantation using Fisher rats as donors and Lewis rats as recipients was done to establish

Effect of cydosporin on renin-angiotensin system in a rat model of chronic cyclosporine nephropathy

Objective To explore the mechanisms of cyclosporin-induced chronic nephrotoxicity. Methods Radioimmunoassay was used to study the changes of plasma renin activity (PRA) ,plasma angiotensin Ⅱ(Ang Ⅱ),and Aldosterone after rats were given low salt diet and 30 mg?kg-1?d-1of CsAfor 28 days. The protective effects of Radix Salviae Miltiorrhizae or benazepril on these changes were also studied. Results In CsA-treated rats, PRA and Ang Ⅱ levels were significantly elevated as compared with control groups. The elevation was not influenced by injection of Radix Salviae Miltiorrhizae,but could be blocked markedly by benazepril. There was significant difference in Aldosterone levels among the groups except benazepril-treated group showing a decreased Aldosterone level. Conclusion Chronic cyclosporone nephropathy may be related to activation of renin-angiotensin system, especially to the elevation of Ang Ⅱ levels. The different effects of Radix Salviae Miltiorrhizae or benazepril on RAS suggest the different

Role and mechanism of phosphate myosin light chain in chronic allograft nephropathy of rats

Objective To investigate role and mechanism of phosphate myosin light chain ( pMLC) in rat kidney of chronic allograft nephropathy ( CAN) model. Methods Left donor kidneys from Fisher ( F344) rats were ortho-topically transplanted into Lewis recipients,Meanwhile, F344 rats and LEW rats with resection of right

Establishment of rat experiment model of chronic allograft nephropathy

Objective To summarize experience of establishing stable rat model ot chronic allograft nephropathy. Methods We used Fisher rats as donors and Lewis rats as recipients. After left kidney of donor perfused in situ under hypothermic condition,left renal vein,abdominal aorta and bladder flap of donor was anastomosed with

基于CNA35靶向液态氟碳纳米粒的超声分子成像检测糖尿病肾病大鼠肾脏纤维化的实验研究

目的制备一种由胶原结合蛋白35(CNA35)介导的靶向液态氟碳纳米粒(PFP-NPs),探讨其在超声分子成像检测糖尿病肾病(DN)大鼠肾脏纤维化中的应用价值。方法制备经荧光标记的非靶向PFP-NPs和CNA35靶向PFP-NPs,经转化生长因子-β诱导人肾小管上皮HK-2细胞间质转化,发生胶原沉积,然后分别将非靶向PFP-NPs和CNA35靶向PFP-NPs与细胞共同孵育,于倒置荧光显微镜下观察细胞上PFP-NPs荧光信号。建立DN大鼠模型,分为非靶向组和靶向组,每组各10只,分别静脉注射非靶向PFP-NPs与CNA35靶向PFP-NPs,应用超声分子成像检测两组DN大鼠静脉注射PFP-NPs后10 min、30 min肾脏超声分子成像信号强度;然后处死DN大鼠并取肾脏组织,检测肾脏组织PFP-NPs荧光信号强度及Ⅰ型胶原荧光信号强度;免疫组织化学检测肾脏组织Ⅰ型胶原染色面积占比,分析肾脏超声分子成像信号强度与Ⅰ型胶原染色面积占比的相关性。结果CNA35靶向PFP-NPs孵育的人肾小管上皮HK-2细胞上的荧光信号强度高于非靶向PFP-NPs孵育的细胞(388.21±15.28 vs.25.79±3.62),差异有统计学意义(P<0.05)。靶向组DN大鼠肾脏组织PFP-NPs荧光信号强度高于非靶向组(946.02±83.55 vs.73.69±21.72),差异有统计学意义(P<0.05);靶向组Ⅰ型胶原荧光信号强度与非靶向组比较差异无统计学意义(969.07±96.67 vs.943.39±106.18),且CNA35靶向PFP-NPs荧光信号与Ⅰ型胶原荧光信号区域重合。体内超声分子成像显示,靶向组DN大鼠静脉注射PFPNPs后10 min、30 min肾脏组织超声分子成像信号强度均高于非靶向组(8.37±1.27 vs.1.92±0.25、9.73±1.25 vs.2.08±1.32),差异均有统计学意义(均P<0.05)。相关性分析显示,DN大鼠肾脏超声分子成像信号强度与Ⅰ型胶原染色面积占比呈正相关(r=0.838,P<0.001)。结论成功制备了CNA35靶向PFP-NPs,其能够靶向结合大鼠肾脏胶原高表达部位,实现了对DN大鼠肾脏纤维化的靶向超声分子成像。

基于液质联用法测定嘧啶核苷类化合物GY005在SD大鼠体内的药代动力学实验研究

建立LC-MS/MS法测定嘧啶核苷类化合物GY005在大鼠血浆中的浓度,并应用于大鼠体内的药代动力学研究。以特非那定为内标,经乙腈-甲醇沉淀蛋白后,采用ACE 5 C4 column(50 mm×2.1 mm,2.5μm)色谱柱,以0.1%甲酸水和0.1%甲酸乙腈为流动相,进行梯度洗脱分离,流速0.7 mL·min^(-1),进样量10μL;采用电喷雾离子源(ESI),正离子扫描方式,MRM扫描,分别以m/z 445.15→270.10和m/z 472.40→436.40作为化合物GY005和内标(特非那定)的质谱检测条件。大鼠灌服2 mg·kg^(-1)化合物GY005后,不同时间点取样测定其血浆浓度,计算药代动力学参数。雌雄SD大鼠单次静脉注射2 mg·kg^(-1)的受试品后,化合物GY005在雄性大鼠体内的暴露量(AUC_(last))为(228±44)h·ng·mL^(-1),消除半衰期(T_(1/2))为(0.30±0.01)h,清除率(CL)为(149±29)mL·min^(-1)·kg^(-1)。化合物GY005在雌性大鼠体内的暴露量(AUC_(last))为(215±158)h·ng·mL^(-1),消除半衰期(T_(1/2))为(0.32±0.03)h,清除率(CL)为(226±162)mL·min^(-1)·kg^(-1)。雌雄间暴露水平相当,没有显著性差异。这个方法具有简便、灵敏、快捷,适用于化合物GY005的药代动力学研究。

葛根熟大黄复配提取物对乙醇致急性胃黏膜损伤大鼠的保护作用

为研究葛根熟大黄复配提取物对无水乙醇诱导的急性胃黏膜损伤大鼠模型辅助保护作用,将60只大鼠随机分为正常对照组、模型对照组、葛根熟大黄复配提取物低、中、高剂量组,每组12只,连续灌胃32 d,末次给药后禁食不禁水24 h,无水乙醇造模。记录动物体质量、胃损伤积分、胃黏膜损伤程度以及充血、出血、上皮细胞变性坏死积分及病变总积分。与正常对照组相比,模型对照组和葛根熟大黄复配提取物组大鼠体质量无显著性差异(P>0.05),模型对照组胃损伤积分显著升高(P<0.05)。与模型对照组相比,葛根熟大黄复配提取物中、高剂量组能减少胃充血、出血、上皮细胞变性和坏死,降低大鼠胃黏膜急性酒精损伤病理组织学病变总积分(P<0.01);高剂量组能显著降低大鼠胃黏膜急性酒精损伤积分(P<0.05)。葛根熟大黄复配提取物对无水乙醇诱导的急性胃黏膜损伤模型具有辅助保护作用。