histopathological study

  • 文章类型: Case Reports
    听力损失通常与戈谢病(GD)有关。Gaucher细胞是由于葡糖脑苷脂酶的缺乏而在溶酶体中含有葡糖脑苷脂的扩大的网状内皮细胞。Gaucheroma由积累的Gaucher细胞组成。Gaucher细胞在包括肝脏在内的可变组织中积累,脾,脾骨髓,中耳和乳突导致传导性听力损失。中枢神经系统中的神经元和星形胶质细胞在神经特发性GD中受到影响,导致感觉神经性听力损失。即使在接受酶替代疗法(ERT)治疗的患者中,Gaucheroma也会发展。我们报告了一名19岁的GD3型女性患者,该患者患有与颅内Gaucheroma相关的严重双侧听力损失。ERT与imiglucerase的联合疗法和底物减少疗法(SRT)与eliglustat的联合疗法显着降低了Gaucher细胞的大小,并清除了Gaucher细胞中溶酶体中的特征性微管结构。SRT的早期实施可以至少预防GD的传导性听力损害,尽管它可能无法预防由于内部毛细胞功能障碍而引起的感觉神经性听力损失,这也与神经特发性GD有关。
    Hearing loss is frequently associated with Gaucher disease (GD). Gaucher cells are enlarged reticuloendothelial cells containing glucocerebroside in the lysosomes due to deficiency of the glucocerebrosidase. Gaucheromas consist of accumulated Gaucher cells. Gaucher cells accumulate in variable tissues including the liver, spleen, bone marrow, and the middle ear and the mastoid causing conductive hearing loss. Neurons and astrocytes in the central nervous system are affected in neuronopathic GD leading to sensorineural hearing loss. Gaucheromas can develop even in patients treated with enzyme replacement therapy (ERT). We report a 19-year-old female patient with GD type 3 who developed profound bilateral hearing loss associated with intracranial Gaucheroma. Combination therapy of ERT with imiglucerase and substrate reduction therapy (SRT) with eliglustat significantly decreased the size of Gaucher cells and cleared the characteristic microtubular structures in the lysosomes in Gaucher cells. Early implementation of SRT may prevent at least conductive hearing impairment in GD although it may not prevent sensorineural hearing loss due to inner hair cell dysfunction which is also known to be associated with neuronopathic GD.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    全世界有超过10亿人患有高血压;高血压管理已被列为全球健康重点.氯沙坦钾(LP)是一种抗高血压药物,由于经历了最初的代谢循环,因此口服生物利用度有限,约为33%。因此,经鼻给药是克服首过代谢的独特途径。这项研究集中在LP负载的spanlastic囊泡(SNV)对LP药效学和药代动力学参数的潜在影响,利用在3122全因子设计上建立的薄膜水合方法。LP-SNV的捕获效率(EE%)为39.8±3.87.8至83.8±2.92%。囊泡大小(VS)从205.5±6.5.10到445.1±13.52nm不等,8h(Q8h)后释放的LP百分比为30.8±3.10至68.8±1.45%。LP在24小时内渗透通过鼻粘膜,并从194.1±4.90絮凝至435.3±13.53µg/cm2。二十四小时后,最佳的LP-SNV原位凝胶显示通过鼻粘膜的渗透性是LP溶液的2.35倍。它还降低了收缩压,因此,在药效学方面,它被认为比参考制剂更好。药代动力学研究表明,与口服LP溶液相比,鼻内LP-SNV凝胶的生物利用度提高了约6.36倍。我们的研究表明,鼻内LP-SNV可能是一个很好的纳米平台,因为它们具有良好的耐受性,并且具有可能的药代动力学和药效学。
    More than 1 billion people worldwide suffer from hypertension; therefore, hypertension management has been categorized as a global health priority. Losartan potassium (LP) is an antihypertensive drug with a limited oral bioavailability of about 33% since it undergoes the initial metabolic cycle. Thus, nasal administration is a unique route to overcome first-pass metabolism. The investigation focused on the potential effects of LP-loaded spanlastic vesicles (SNVs) on LP pharmacodynamics and pharmacokinetic parameters, utilizing a thin-film hydration methodology established on a 3122 full factorial design. Entrapment efficiency (EE%) ranged from 39.8 ± 3.87.8 to 83.8 ± 2.92% for LP-SNVs. Vesicle size (VS) varied from 205.5 ± 6.5.10 to 445.1 ± 13.52 nm, and the percentage of LP released after 8 h (Q8h) ranged from 30.8 ± 3.10 to 68.8 ± 1.45%. LP permeated through the nasal mucosa during 24 h and flocculated from 194.1 ± 4.90 to 435.3 ± 13.53 µg/cm2. After twenty-four hours, the optimal LP-SNVs in-situ gel showed 2.35 times more permeation through the nasal mucosa than the LP solution. It also lowered systolic blood pressure, so it is thought to be better than the reference formulation in terms of pharmacodynamics. The pharmacokinetics studies demonstrated that the intranasal LP-SNVs gel boosted its bioavailability approximately 6.36 times compared to the oral LP solution. Our research showed that intranasal LP-SNVs could be a good nanoplatform because they are well-tolerated and have possible pharmacokinetics and pharmacodynamics.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    目的:本研究的目的是研究姬松茸乙醇提取物对来曲唑诱导的多囊卵巢综合征(PCOS)大鼠模型的影响。
    方法:将30只雌性Wistar大鼠分为5组,每个由六只老鼠组成。阴性对照组施用ImL体积的0.5%羧甲基纤维素(CMC)溶液。将来曲唑(lmg/kg)施用于另外的组,持续21天,以诱导多囊卵巢综合征(PCOS)。在第22天对指定为阳性对照的动物实施安乐死。从第22天至第36天对测试组和标准组进行治疗。实验组以200mg/kg和400mg/kg的剂量口服姬松茸乙醇提取物,而对照组接受1mg/kg剂量的枸橼酸克罗米芬。该研究观察了多囊卵巢疾病患者的各种生理标志物,包括估计的血糖水平,总胆固醇水平,甘油三酯水平,和荷尔蒙波动,如睾丸激素和雌激素水平增加,以及孕酮水平下降。通过检查阴道涂片和卵巢组织病理学变化证实了月经不调的存在。
    结果:研究发现,对Agaricussubrufescens的消耗对各种生理参数有重大影响,包括血糖水平,睾酮水平,无排卵,和月经不调。所有治疗干预措施均使血清谷氨酸-草酰乙酸转氨酶(SGOT)和血清谷氨酸-丙酮酸转氨酶(SGPT)的水平显着正常化。来曲唑诱导的多囊卵巢综合征(PCOS)大鼠的尿素和肌酐水平升高。这项研究的结果表明,服用姬松茸对肾功能有保护作用,血清尿素和肌酐水平降低证明了这一点。来曲唑诱导的多囊卵巢综合征(PCOS)大鼠,抑制肝脏合成,促进卵泡不成熟,雄激素分泌的升高导致肝脏和卵巢的重量增加。在所有治疗组中,内分泌器官的重量表现出降低。PCOS标本的组织病理学检查显示囊肿和叶黄素细胞的存在增加。与接受治疗的组相比,未接受治疗的多囊卵巢综合征(PCOS)大鼠组表现出更高的囊肿数量。
    结论:本研究证明口服来曲唑导致多囊卵巢疾病的发展。结果表明血糖水平升高,总胆固醇,和甘油三酯,以及激素水平的改变,如睾酮和雌激素增加,孕酮减少。这些荷尔蒙的变化伴随着月经不调,通过阴道涂片检查和卵巢组织病理学分析证实,对照组患有多囊卵巢疾病。接受姬松茸的治疗组表现出血糖下降,总胆固醇,和睾丸激素水平。
    OBJECTIVE: The objective of this study is to investigate the effects of an ethanolic extract derived from Agaricus subrufescens on rat models exhibiting Polycystic Ovarian Syndrome (PCOS) induced by Letrozole.
    METHODS: A total of thirty female Wistar rats were divided into five groups, each consisting of six rats. The negative control group was administered a volume of 1 mL of a 0.5% solution of carboxy methylcellulose (CMC). Letrozole (1 mg/kg) was administered to additional groups for a duration of 21 days in order to induce polycystic ovary syndrome (PCOS). Animals designated as positive controls were euthanized on the 22nd day. Both the test group and the standard group were subjected to treatment from the 22nd day to the 36th day. The experimental group was administered ethanolic extract of Agaricus subrufescens at doses of 200 mg/kg and 400 mg/kg p.o, while the control group received clomiphene citrate at a dose of 1 mg/kg. The study observed various physiological markers in individuals with polycystic ovarian disease, including estimated blood glucose levels, total cholesterol levels, triglyceride levels, and hormonal fluctuations such as increased testosterone and estrogen levels, as well as decreased progesterone levels. The presence of menstrual irregularities was confirmed through the examination of vaginal smears and histopathological changes in the ovaries.
    RESULTS: The consumption of Agaricus subrufescens was found to have a significant impact on various physiological parameters, including blood glucose levels, testosterone levels, anovulation, and menstrual irregularity. All therapeutic interventions significantly normalized the levels of serum glutamic-oxaloacetic transaminase (SGOT) and serum glutamic-pyruvic transaminase (SGPT). The rats with polycystic ovary syndrome (PCOS) that were induced by Letrozole exhibited increased levels of urea and creatinine. The findings of this study indicate that the administration of Agaricus subrufescens therapy has a protective effect on renal function, as evidenced by a reduction in serum levels of urea and creatinine. In rats with polycystic ovary syndrome (PCOS) induced by Letrozole, the inhibition of hepatic synthesis, promotion of ovarian follicle immaturity, and elevation of androgen secretions result in an increase in the weight of the liver and ovaries. The weight of endocrine organs exhibited a decrease across all treatment groups. The histopathological examination of PCOS specimens revealed an increased presence of cysts and theca lutein cells. The group of rats with polycystic ovary syndrome (PCOS) that did not receive treatment exhibited a higher number of cysts compared to the groups that received treatment.
    CONCLUSIONS: This study demonstrated that the administration of Letrozole orally resulted in the development of polycystic ovarian disease. The results indicated heightened levels of blood glucose, total cholesterol, and triglycerides, as well as alterations in hormone levels such as increased testosterone and estrogen, and decreased progesterone. These hormonal changes were accompanied by menstrual irregularities, which were confirmed through the examination of vaginal smears and histopathological analysis of the ovaries in the control group with polycystic ovarian disease. The treatment groups that received Agaricus subrufescens exhibited a decrease in blood glucose, total cholesterol, and testosterone levels.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    高产率富含二苯乙烯的丙酮馏分(6.6%,制备西番莲的PEAS),并评估其在氯化铝和D-半乳糖诱导的小鼠阿尔茨海默病模型中的神经保护活性。富含多酚二苯乙烯的丙酮级分的植物化学和HPLC-DAD-MS分析表明,它含有不同的二苯乙烯,包括反式-piceatannol,PEAS的总酚含量(TPC)为413.87±1.71mgGAEeqv/g。PEAS的神经保护活性通常表现在Morris水迷宫参考空间记忆测试中,在100mg/kg(Alz-ED1)和200mg/kg(Alz-ED2)治疗的阿尔茨海默氏症小鼠花费的时间少于47%和66%,分别,比阿尔茨海默氏症模型小鼠(Alz)。两个简单的二苯乙烯,反式白藜芦醇和反式白藜芦醇,在计算机上显示出对乙酰胆碱酯酶(AChE)的选择性抑制活性。两个二苯乙烯二聚体,仙人掌E和仙人掌A,表现出对AChE和丁酰胆碱酯酶(BChE)的低纳摩尔抑制潜力,显著低于阳性对照,多奈哌齐和他克林.这些发现表明,来自紫菜种子的二苯乙烯,特别是二苯乙烯二聚体,作为预防与阿尔茨海默病相关的认知缺陷的潜在神经保护候选者,我们需要进一步研究。
    The stilbene-rich acetone fraction in high yield (6.6 %, PEAS) of Passiflora edulis Sims was prepared and evaluated for neuroprotective activity in murine Alzheimer\'s disease model induced by aluminum chloride and D-galactose. The phytochemical and HPLC-DAD-MS analysis of the polyphenolic stilbene-rich acetone fraction showed that it contained different stilbenes including trans-piceatannol, scirpusins A-B and cassigarol E. The total phenolic content (TPC) of PEAS was 413.87±1.71 mg GAE eqv/g. The neuroprotective activity of PEAS is typically presented in the Morris water maze-reference Spatial Memory test, where the Alzheimer\'s mice treated at 100 mg/kg (Alz-ED1) and 200 mg/kg (Alz-ED2) spent less than 47 % and 66 % of the time, respectively, than the Alzheimer\'s model mice (Alz). Two simple stilbenes, trans-piceatannol and trans-resveratrol, showed selectively inhibitory activity in silico against acetylcholinesterase (AChE). Two stilbene dimers, cassigarol E and scirpusin A, exhibited low nanomolar inhibitory potential against AChE and butyrylcholinesterase (BChE), significantly lower than those of the positive control, donepezil and tacrine. These findings suggest that the stilbenes from P. edulis seeds, particularly the stilbene dimers, warrant further investigation as potential neuroprotective candidates in the prevention of cognitive deficits associated with Alzheimer\'s disease.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    背景:芦荟(L.)Burm.f.广泛用于全球各种传统医学系统。自从5000多年前,几种培养物已经将A.vera提取物用于从糖尿病到湿疹的各种疾病。它已被证明可以通过增强胰岛素分泌和保护胰岛来减轻糖尿病的症状。
    目的:本研究旨在研究体外抗氧化作用,急性口服毒性,以及通过标准化深红色A.vera花甲醇提取物(AVFME)的胰腺组织学检查可能的药理体内抗糖尿病活性。
    方法:采用液-液萃取法和薄层色谱法研究化学成分。通过Folin-Ciocalteu和AlCl3比色法定量AVFME中的总酚和类黄酮,分别。本研究涉及使用抗坏血酸作为参考标准评估AVFME的体外抗氧化作用,通过使用36只白化病大鼠和不同浓度的AVFME(200mg/kg,2、4、8和10克/千克b.w.)。此外,对四氧嘧啶诱导的大鼠糖尿病进行了体内抗糖尿病研究(120mg/kg,I.P.)和两剂AVFME(200和500mg/kgb.w.,口服)与格列本脲(5mg/kg,口服)作为标准的降血糖磺脲类药物。对胰腺进行组织学检查。
    结果:AVFME的最高酚类含量为每克150.44±4.62mg没食子酸当量(GAE/g),类黄酮含量为每克70.38±0.97mg槲皮素当量(QE/g)。体外研究表明,AVFME的抗氧化作用与抗坏血酸一样强。体内研究结果表明,在不同剂量下,所有组的AVFME均未引起任何明显的毒性体征或死亡,这证明了该提取物的安全性,具有广泛的治疗指数。AVFME的抗糖尿病活性证明血糖水平显着下降,如格列本脲,没有严重的低血糖或明显的体重增加,这被认为是AVFME优于格列本脲的优势。胰腺组织的组织病理学研究证实了AVFME对胰腺β细胞的保护作用。该提取物被认为具有抗糖尿病活性,通过抑制α-淀粉酶,α-葡萄糖苷酶,和二肽基肽酶IV(DPP-IV)。进行分子对接研究以了解与这些酶的可能的分子相互作用。
    结论:基于其口服安全性,AVFME代表了抗糖尿病(DM)活性成分的有希望的替代来源,抗氧化剂,抗高血糖活性,和胰腺保护作用。这些数据揭示AVFME的抗高血糖活性由胰腺保护作用介导,同时通过增加功能β细胞显著增强胰岛素分泌。这表明AVFME具有作为治疗2型糖尿病(T2DM)的新型抗糖尿病疗法或膳食补充剂的潜力。
    BACKGROUND: Aloe vera (L.) Burm.f. is widely used in various traditional systems of medicine worldwide. Since over 5000 years ago, several cultures have used A. vera extract medicinally for conditions ranging from diabetes to eczema. It has been shown to reduce the symptoms of diabetes by enhancing insulin secretion and protecting pancreatic islets.
    OBJECTIVE: This research study aimed to investigate the in-vitro antioxidant effect, the acute oral toxicity, and the possible pharmacological in-vivo anti-diabetic activity with histological examination of the pancreas of the standardized deep red A. vera flowers methanolic extracts (AVFME).
    METHODS: The liquid-liquid extraction procedure and TLC technique were used to investigate chemical composition. Total phenolics and flavonoids in AVFME were quantified by Folin-Ciocalteu and AlCl3 colorimetric methods, respectively. The present study involved evaluating the in-vitro antioxidant effect of AVFME using ascorbic acid as the reference standard, an acute oral toxicity study by using thirty-six albino rats and different concentrations of AVFME (200 mg/kg, 2, 4, 8 and 10 g/kg b.w.). Furthermore, the in-vivo anti-diabetic study was performed on alloxan-induced diabetes in rats (120 mg/kg, I.P.) and two doses of AVFME (200 and 500 mg/kg b.w., orally) were used as compared to glibenclamide (5 mg/kg, orally) as a standard hypoglycemic sulfonylurea medication. A histological examination of the pancreas was performed.
    RESULTS: AVFME resulted in the highest phenolic content of 150.44 ± 4.62 mg gallic acid equivalent per gram (GAE/g) along with flavonoid content of 70.38 ± 0.97 mg of quercetin equivalent per gram (QE/g). An in-vitro study revealed that the antioxidant effect of AVFME was strong as ascorbic acid. The results of the in-vivo studies showed that the AVFME didn\'t cause any apparent toxicity signs or death in all groups at different doses which proves the safety of this extract with a wide therapeutic index. The antidiabetic activity of AVFME demonstrated a considerable drop in blood glucose levels as glibenclamide, without severe hypoglycemia or significant weight gain which is considered an advantage of AVFME over glibenclamide use. The histopathological study of pancreatic tissues confirmed the protective effect of AVFME on the pancreatic beta-cells. The extract is proposed to have antidiabetic activity through inhibition of α-amylase, α-glucosidase, and dipeptidyl peptidase IV (DPP-IV). Molecular docking studies were conducted to understand possible molecular interactions with these enzymes.
    CONCLUSIONS: AVFME represents a promising alternative source of active constituents against diabetes mellitus (DM) based on its oral safety, antioxidant, anti-hyperglycemic activities, and pancreatic protective effects. These data revealed the antihyperglycemic activity of AVFME is mediated by pancreatic protective effects while significantly enhancing insulin secretion through increasing functioning beta cells. This suggests that AVFME has the potential as a novel antidiabetic therapy or a dietary supplement for the treatment of type 2 diabetes (T2DM).
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    发现盐酸普萘洛尔(PNL),这是一种用于治疗高血压的β受体阻滞剂,通过局部麻醉活性或对精子细胞的β-阻断作用具有有效的杀精活性,随后可用作避孕药。这项研究旨在将PNL诱捕到侵入体(INV)中,然后将其配制为局部作用的避孕凝胶。通过薄膜水合技术制备载有PNL的粘膜粘附INV。D-最优设计用于制造采用脂质浓度(X1)的INV,萜烯浓度(X2),萜烯类型(X3),和壳聚糖浓度(X4)作为自变量,虽然观察到它们对包封效率百分比(Y1;EE%)的影响,粒度(Y2;PS),zeta电位(Y3;ZP),以及6h后的药物释放量(Y4;Q6h)。DesignExpert®被授予提名所需的配方。对所选择的INV进行进一步研究并配制成粘膜粘附凝胶用于离体和体内研究。最佳INV呈球形,EE%为65.01±1.24%,243.75±8.13nm的PS,PDI为0.203±0.01,ZP为49.80±0.42mV,Q6h为53.16±0.73%。差示扫描量热法研究证实了INV截留PNL的能力。渗透研究证实,与PNL凝胶相比,PNL负载的INVs凝胶具有所需的持续效果,INV,PNL解决方案。精子运动试验证明了INVs凝胶抑制精子运动的效力。此外,组织病理学研究证实了所制备的INVs凝胶的耐受性。一起来看,获得的数据证明了PNL负载的INVs-gel作为潜在的局部作用避孕药的有效性.
    It was found that propranolol hydrochloride (PNL), which is a beta-blocker used for hypertension treatment, has a potent spermicidal activity through local anesthetic activity or beta-blocking effect on sperm cells subsequently it could be used as a contraceptive remedy. This study aimed to entrap PNL into invasomes (INVs) and then formulate it as a locally acting contraceptive gel. PNL-loaded mucoadhesive INVs were prepared via the thin-film hydration technique. The D-optimal design was utilized to fabricate INVs employing lipid concentration (X1), terpenes concentration (X2), terpenes type (X3), and chitosan concentration (X4) as independent variables, while their impact was observed for entrapment efficiency percent (Y1; EE%), particle size (Y2; PS), zeta potential (Y3; ZP), and amount of drug released after 6 h (Y4; Q6h). Design Expert® was bestowed to nominate the desired formula. The selected INV was subjected to further studies and formulated into a mucoadhesive gel for ex-vivo and in-vivo investigations. The optimum INV showed a spherical shape with EE% of 65.01 ± 1.24%, PS of 243.75 ± 8.13 nm, PDI of 0.203 ± 0.01, ZP of 49.80 ± 0.42 mV, and Q6h of 53.16 ± 0.73%. Differential scanning calorimetry study asserted the capability of INVs to entrap PNL. Permeation studies confirmed the desired sustained effect of PNL-loaded INVs-gel compared to PNL-gel, INVs, and PNL solution. Sperm motility assay proved the potency of INVs-gel to inhibit sperm motility. Besides, the histopathological investigation verified the tolerability of the prepared INVs-gel. Taken together, the gained data justified the efficacy of PNL-loaded INVs-gel as a potential locally acting contraceptive.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    Wound healing is a great challenge in many health conditions, especially in non-healing conditions. The search for new wound healing agents continues unabated, as the use of growth factors is accompanied by several limitations. Medicinal plants have been used for a long time in would healing, despite the lack of scientific evidence veryfying their efficacy. Up to now, the number of reports about medicinal plants with wound healing properties is limited. Urtica dioica L. is a well-known plant, widely used in many applications. Reports regarding its wound healing potential are scant and sparse. In this study, the effect of an Urtica dioica L. extract (containing fewer antioxidant compounds compared to methanolic or hydroalcoholic extracts) on cell proliferation, the cell cycle, and migration were examined. Additionally, antioxidant and anti-inflammatory properties were examined. Finally, in vivo experiments were carried out on full-thickness wounds on Wistar rats. It was found that the extract increases the proliferation rate of HEK-293 and HaCaT cells up to 39% and 30% after 24 h, respectively, compared to control cells. The extract was found to increase the population of cells in the G2/M phase by almost 10%. Additionally, the extract caused a two-fold increase in the cell migration rate of both cell lines compared to control cells. Moreover, the extract was found to have anti-inflammatory properties and moderate antioxidant properties that augment its overall wound healing potential. Results from the in vivo experiments showed that wounds treated with an ointment of the extract healed in 9 days, while wounds not treated with the extract healed in 13 days. Histopathological examination of the wound tissue revealed, among other findings, that inflammation was significantly reduced compared to the control. Urtica dioica L. extract application results in faster wound healing, making the extract ideal for wound healing applications and a novel drug candidate for wound healing.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Case Reports
    近红外光谱(NIRS)已用于分析冠状动脉中动脉粥样硬化斑块的组成。然而,经皮冠状动脉介入治疗(PCI)期间最大脂质核心负荷指数在4mm(最大LCBI4mm)时显著下降的意义尚不清楚.
    一名64岁男性不稳定型心绞痛患者接受了冠状动脉造影检查,这表明右冠状动脉中段有一个模糊的紧密的罪魁祸首病变。干预前NIRS-血管内超声(NIRS-IVUS)和化学图示显示,罪魁祸首病变处具有高脂质负荷的斑块。然后,我们在PCI前使用了远端保护装置,因为病变的最大LCBI4mm高.用计分球囊预扩张后,重复NIRS-IVUS询问显示黄色信号几乎完全消失,最大LCBI4mm(从537降至44)显着降低,提示斑块的脂质含量降低。最后,药物洗脱支架展开后,再对非顺应性球囊进行充气,结果极佳.PCI后,我们在回收过滤器时检测到了大量的碎片。病理诊断证实,被困物质为富含脂质的斑块,包括胆固醇晶体。
    这是第一份报告,直接证明罪犯病变处最大LCBI4mm的显着降低应与临床患者PCI期间富含脂质的斑块中胆固醇晶体的泄漏有关。
    UNASSIGNED: Near-infrared spectroscopy (NIRS) has been used for analysis the composition of the atherosclerotic plaque in coronary arteries. However, meaning of significant decrease in max lipid core burden index at 4 mm (max LCBI4mm) during percutaneous coronary intervention (PCI) is poorly understood.
    UNASSIGNED: A 64-year-old male with unstable angina underwent coronary angiography, which demonstrated a hazy tight culprit lesion in the mid-right coronary artery. Pre-intervention NIRS-intravascular ultrasound (NIRS-IVUS) and chemogram showed plaque with high lipid burden at the culprit lesion. Then, we used a distal protection device before PCI because of high max LCBI4mm in the lesion. After pre-dilation with a scoring balloon, repeat NIRS-IVUS interrogation revealed an almost complete disappearance of the yellow signal and decrease in max LCBI4mm (from 537 to 44) significantly, suggesting decrease in the lipid content of the plaque. Finally, a drug-eluting stent deployment followed by inflation of a non-compliant balloon led to an excellent result. After PCI, we detected trapped large amounts of debris on retrieval of the filter. Pathological diagnosis confirmed that trapped material was lipid-rich plaque including cholesterol crystals.
    UNASSIGNED: This is the first report directly demonstrated that significant decrease in max LCBI4mm at culprit lesion should be associated with the leakage of cholesterol crystals from lipid-rich plaque during PCI in the clinical patient.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:已经在胆管癌(CCA)患者的肝胆道中检测到幽门螺杆菌(HP),该地区的地方性和非地方性的OV感染。然而,幽门螺杆菌感染是否促进CCA发育尚不清楚.我们研究了幽门螺杆菌感染和N-亚硝基二甲胺(NDMA)联合使用诱导的仓鼠CCA发展,并将其与OV加NDMA组的发现进行了比较。
    方法:将85只仓鼠分为四组:(1)正常,(2)管理的NDMA,(3)感染cagA+H.pylori并施用NDMA(HN组),和(4)感染OV并施用NDMA(ON组)。在感染后3和6个月对动物实施安乐死。研究了肝脏的组织病理学变化和与癌变相关的标志物的表达。
    结果:感染后3个月(p.i.),在HN组中注意到胆管炎和淋巴滤泡,没有肿瘤的出现,而广泛的纤维化见于ON组的成员,其中10%已发展为肿瘤。在6个月的p.i.,仅使用NDMA的仓鼠中有10%发展了CCA,而在HN和ON组中,20%和60%的仓鼠,分别,开发了CCA。在HN和ON组的CCA组织中均观察到细胞角蛋白19(CK19)的表达,证实CCA细胞的胆管起源。HN组的CCA发育可能是炎症介导的,如HMGB1、PCNA、CCA组织中的IL-8和8-OxodG。
    结论:cagA+H.pylori感染和致癌物质摄入可诱导CCA发展,进展缓慢。
    BACKGROUND: Helicobacter pylori (HP) has been detected in the hepatobiliary tract of cholangiocarcinoma (CCA) patients in regions both endemic and non-endemic for Opisthorchis viverrini (OV) infection. However, whether H. pylori infection promotes CCA development remains unknown. We investigated CCA development in hamsters induced by a combination of infection with H. pylori and administration of N-nitrosodimethylamine (NDMA) and compared findings with those in an OV plus NDMA group.
    METHODS: Eighty-five hamsters were divided into four groups: (1) normal, (2) administered NDMA, (3) infected with cagA+ H. pylori and administered NDMA (HN group), and (4) infected with OV and administered NDMA (ON group). Animals were euthanized at 3 and 6 months post-infection. Histopathological changes of liver and the expression of markers associated with carcinogenesis were studied.
    RESULTS: At 3 months post-infection (p.i.), cholangitis and lymphoid follicles without tumor appearance were noted in the HN group, whereas extensive fibrosis was seen in members of the ON group, 10% of which had developed tumors. At 6 months p.i., 10% of hamsters administered NDMA alone had developed CCA, whereas in the HN and ON groups, 20% and 60% of hamsters, respectively, had developed CCA. Cytokeratin-19 (CK19) expression was observed in the CCA tissues of both the HN and the ON groups, confirming the bile duct origin of the CCA cells. CCA development in the HN group might be inflammation-mediated, as suggested by overexpression of HMGB1, PCNA, IL-8, and 8-OxodG in CCA tissues.
    CONCLUSIONS: cagA+ H. pylori infection and carcinogen intake can induce CCA development with slow progression.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    糖尿病是发展中国家和非发展中国家最常见的代谢紊乱。和公认的全球健康问题。世卫组织预计病例将从2000年的1.71亿增加到2030年的3.66亿。在本研究中,我们专注于嘧啶衍生物的制备作为潜在的抗糖尿病和抗菌药物。Thein对血清总葡萄糖浓度的影响,在成年雄性白化病Wister大鼠中评估了胆固醇和抗氧化活性,并与参考药物glemperide进行了比较。对于化合物5观察到有希望的结果。组织病理学研究证实,化合物5导致肝脏维持的显著活性。对几种细菌菌株,如鼠伤寒沙门氏菌ATCC25566,蜡状芽孢杆菌,大肠杆菌NRRN3008,铜绿假单胞菌ATCC10145,金黄色葡萄球菌ATCC6538和真菌如少根霉,穆克·米黑和黑曲霉。与参比药物头孢拉定相比,化合物4和5显示出良好的细菌区抑制作用。最后,我们基于计算分析建议这些药物的蛋白质靶标,并使用分子建模从它们预测的结合模式推断它们的活动。化合物4和5的分子建模导致改进的对接分数和氢键。对接研究与体外和体内研究非常吻合。
    Diabetes is the most common metabolic disorder in both developing and non-developing countries, and a well-recognized global health problem. The WHO anticipates an increase in cases from 171 million in 2000 to 366 million by 2030. In the present study, we focus on the preparation of pyrimidine derivatives as potential antidiabetic and antimicrobial agents. Thein vivoeffect on total serum glucose concentration, cholesterol and antioxidant activity was assessed in adult male albino Wister rats and compared to the reference drug glimperide. Promising results were observed for compound 5. The histopathological study confirms that compound 5 results in significant activity with liver maintenance. The antimicrobial activities were evaluated against several bacterial strains such as Salmonella typhimurium ATCC 25566, Bacillus cereus, Escherichia coli NRRN 3008, Pseudomonas aeruginosa ATCC 10145, Staphylococcus aureus ATCC 6538and fungi such as Rhizopus oligosporus, Mucor miehei and Asperillus niger. Compounds 4 and 5 showed a good inhibition of the bacterial zone compared to the reference drug cephradine. Finally, we suggest protein targets for these drugs based on computational analysis, and infer their activities from their predicted modes of binding using molecular modeling. The molecular modeling for compounds 4 and 5 resulted in improved docking scores and hydrogen bonding. The docking studies are in good agreement with the in vitro and in vivo studies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

公众号