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Morphological characterization of Verticillium dahliae isolated from olive trees in District Mardan 马丹区橄榄树黄萎病菌的形态鉴定
Pub Date : 2022-01-27 DOI: 10.47262/bl/8.1.20211013
Verticillium dahliae is a soil-borne fungus that causes Verticillium wilt, a destructive disease of Olive trees worldwide. The common symptoms of Verticillium wilt in Olive trees include wilting, leaf rolling, chlorosis, defoliation, and dead brown leaves on sunny days. During the year 2020-21, one field of Olive Arched (17-acre area) was investigated for the incidence of Verticillium wilt located in Mardan District of Khyber Pakhtunkhwa. Root, stem and leaves, samples were collected from suspected plants, and cultured on potato dextrose agar (PDA) media for the isolation of Verticillium dahliae. Spores of the isolated fungal colonies were counted using a hemocytometer. The diameter of colonies was measured on PDA and complete media (CM) using a ruler with intervals of three days. Verticillium dahliae was isolated only from the olive tree roots, while no isolation of Verticillium dahliae was observed in stem and leaves samples. The average colony diameter after seven days on PDA and CM media was 4.6 cm and 2.4 cm respectively. Spores count for the pure colony was 3.44 x 107/ml conidia. It was concluded that the wilting observed in Olive trees was due to Verticillium dahliae in district Mardan.
大丽花黄萎病是一种土壤传播的真菌,引起黄萎病,一种世界范围内的橄榄树破坏性疾病。橄榄树黄萎病的常见症状包括萎蔫、卷叶、黄化、落叶和晴天枯黄的叶子。在2020-21年期间,对位于开伯尔-普赫图赫瓦省马尔丹地区的一块橄榄园(17英亩面积)进行了黄萎病发病率调查。收集可疑植株的根、茎、叶,在马铃薯葡萄糖琼脂培养基上分离大丽花黄萎病菌。用血细胞计对分离真菌菌落的孢子进行计数。用直尺在PDA和全培养基(CM)上测量菌落直径,每隔三天测量一次。仅从橄榄树的根中分离到大丽花黄萎病菌,茎和叶样品中未分离到大丽花黄萎病菌。在PDA和CM培养基上7 d后平均菌落直径分别为4.6 CM和2.4 CM。纯菌落孢子数为3.44 × 107个/ml。结果表明,马尔丹地区橄榄树的萎蔫是由大丽花黄萎病引起的。
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引用次数: 0
In vitro apoptotic, anti-proliferative and antioxidant activities of therapeutic plant Datura metel 治疗植物曼陀罗体外细胞凋亡、抗增殖及抗氧化活性的研究
Pub Date : 2022-01-25 DOI: 10.47262/bl/8.1.20210927
Natural bioactive compounds with apoptotic action might be a promising new anti-cancer drug source. The purpose of the present study was to assess the apoptotic, anti-proliferative, antioxidative activities of a therapeutic plant Datura metel in liver hepatocellular carcinoma, HepG2 cell lines, as well as in normal baby hamster kidney (BHK) cell lines as controls. Ethanol and n-hexane solvents were used to extract Datura metel leaves extract. Standard techniques for identifying components were used to conduct phytochemical analysis. Cell death and viability in all sets of the cells were assessed using (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide), trypan blue and crystal violet tests. For the estimate of apoptosis and cell death in all groups ELISA of Annexin-V was used. In addition, antioxidant enzyme activity assays were also conducted to estimate H2O2, nitric oxide, superoxide and DPPH radical scavenging activities. The outcomes revealed that when cancer cells from the HepG2 cell lines were treated with Datura metel extracts, they demonstrated decreased viability, proliferation, and enhanced apoptosis as compared to normal BHK cells and untreated control cells. Anti-oxidative scavenging activities were higher in cancer cells treated with Datura metel extract than in untreated ones. It was concluded that the Datura metel leaves extract induces apoptosis, enhance antioxidant status, decrease proliferation in HepG2 cells.
具有细胞凋亡作用的天然生物活性化合物可能是一种有前景的抗癌新药物来源。本研究的目的是评估治疗性植物曼陀罗对肝癌、HepG2细胞系以及正常幼鼠肾(BHK)细胞系的凋亡、抗增殖和抗氧化活性。采用乙醇和正己烷溶剂提取曼陀罗叶提取物。采用鉴定成分的标准技术进行植物化学分析。使用(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基溴化四氮唑)、台盼蓝和结晶紫试验评估所有组细胞的细胞死亡和活力。采用Annexin-V酶联免疫吸附法测定各组细胞凋亡和死亡情况。此外,还进行了抗氧化酶活性测定,以评估H2O2,一氧化氮,超氧化物和DPPH自由基的清除能力。结果显示,与正常BHK细胞和未处理的对照细胞相比,曼陀罗提取物处理HepG2细胞系的癌细胞表现出活力、增殖和凋亡增强。曼陀罗提取物处理的癌细胞抗氧化清除活性高于未处理的癌细胞。结论曼陀罗叶提取物可诱导HepG2细胞凋亡,增强抗氧化能力,抑制细胞增殖。
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引用次数: 0
Relationship of smoking with COVID-19 and its adverse effects 吸烟与COVID-19的关系及其不良反应
Pub Date : 2021-12-25 DOI: 10.47262/bl/7.2.20210903
There is a direct relationship between COVID-19 and smoking. This relationship has detrimental consequences for smoking and COVID-19 on body physiology. Smoking causes disc herniation, lungs diseases, heart illness, lipid profile changes, muscle protein synthesis declines, head, neck, and gastric cancers, cerebral inflammation, weight loss and obesity. The smoking habit of pregnant women leads to miscarriage, poor foetal growth, and low lipid and protein levels in breast milk. In males, it also reduces semen ejaculation and seminal vesicle volume. The treatment is based on quitting the smoking. Preventive measures such as a healthy diet and regular exercise can help to mitigate the negative consequences of smoking. In addition, smoking has been recognised as a major factor in COVID-19 transmission. Tobacco smokers are at increased risk of serious COVID-19 infection due to poor lung function, cross-infection, and vulnerable hygiene behaviors. People who have smoked in the past are thought to be more susceptible than non-smokers to have more severe COVID-19 illness symptoms. COVID-19 is more common among smokers than nonsmokers. Current smokers are five times more likely to have influenza infection than non-smokers. Smoking has been identified as one of the risk factors linked to infection and death.
COVID-19与吸烟之间存在直接关系。这种关系对吸烟和COVID-19对身体生理产生不利影响。吸烟会导致椎间盘突出、肺部疾病、心脏病、血脂改变、肌肉蛋白质合成下降、头颈和胃癌、脑炎、体重减轻和肥胖。孕妇吸烟的习惯会导致流产、胎儿生长不良、母乳中脂质和蛋白质含量低。在男性中,它也会减少精液、射精和精囊的体积。治疗是以戒烟为基础的。健康饮食和定期锻炼等预防措施有助于减轻吸烟的负面影响。此外,吸烟已被认为是COVID-19传播的一个主要因素。由于肺功能差、交叉感染和卫生行为不佳,吸烟者严重感染COVID-19的风险增加。过去吸烟的人被认为比不吸烟者更容易出现更严重的COVID-19疾病症状。COVID-19在吸烟者中比在非吸烟者中更常见。目前吸烟者感染流感的可能性是不吸烟者的五倍。吸烟已被确定为与感染和死亡相关的风险因素之一。
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引用次数: 0
Strategies used to treat waste material for energy production on sustainable basis 在可持续的基础上处理废物用于能源生产的战略
Pub Date : 2021-12-25 DOI: 10.47262/bl/7.2.20210827
In the developing world, traditional forms of energy are rapidly eradicated, and contribute freely to global concerns such as waste exposure and dangerous deviations in an environment. So, it is required to develop and used renewable or humorous energy resources for future. Every month, a huge amount of waste is generated and becomes the part of landfill or sent to less developed areas, and sometimes left untreated. It has significant environmental consequences for biological systems, and human well-being. Due to this, numerous new waste disposal plants have emerged and developed to generate energy from garbage dumps. Large amount of trash created each day for landfills causes numerous critical ecological effects. Various new approaches are accessible for changing waste materials into energy sources, going from exceptionally straightforward frameworks of discarding waste to more perplexing advancements fit. Waste can be converted into energy by using three possible strategies such as thermochemical, biochemical, and chemical changes. This article explores the impact of waste on environment, and how waste can be used to generate energy.
在发展中世界,传统形式的能源正在迅速消失,并自由地引起诸如废物暴露和环境中的危险偏差等全球性问题。因此,未来需要开发和使用可再生能源或幽默能源。每个月都会产生大量的垃圾,这些垃圾要么被填埋,要么被送往欠发达地区,有时甚至被置之不理。它对生物系统和人类福祉具有重大的环境后果。正因为如此,许多新的废物处理工厂已经出现并发展起来,从垃圾堆中产生能源。每天为垃圾填埋场制造的大量垃圾造成了许多严重的生态影响。有各种各样的新方法可以将废物转化为能源,从非常简单的丢弃废物的框架到更复杂的进步。废物可以通过热化学、生化和化学变化等三种可能的策略转化为能源。这篇文章探讨了废物对环境的影响,以及如何利用废物来产生能源。
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引用次数: 1
Aloe Vera in Dentistry: A Review 芦荟在牙科中的应用综述
Pub Date : 2021-12-17 DOI: 10.47262/bl/7.2.20211006
Humaira, Farman, Sarmad, Fayyaz, Jabeen, Nawshad, Muhammad, Muhammad Adnan Khan, S. Liaqat
Aloe Vera is a tender and succulent type of plant belonging to the Liliaceae family and genus Aloe. It has been used as a medicinal plant for its healing and soothing properties for more than 2000 years. Properties of the Aloe Vera are not only specie dependent but also on how it is handled after being collected. Due to the adverse effects associated with conventional drugs, researchers are again interested in pursuing plant-based therapies for diseases. Aloe Vera possesses number of beneficial ingredients whilst some studies have also reported its potentially harmful effects. Presence of Aloe Vera in the scaffold material increases viability of the regenerating cells. It is crucial to understand how Aloe Vera interacts with the human body and its physiology when used for dental diseases and discomforts. Components like anthraquinones, aloe-emodin, and aloin present in the Aloe Vera leaves are responsible for their strong anti-bacterial and anti-viral properties. Therefore, this article reviews the current literature related to Aloe Vera use as a replacement or adjunctive therapy in dental diseases.
芦荟是一种柔软多汁的植物,属于百合科和芦荟属。2000多年来,它一直被用作药用植物,具有治疗和舒缓的功效。芦荟的特性不仅取决于品种,还取决于采集后的处理方式。由于与传统药物相关的副作用,研究人员再次对寻求基于植物的疾病疗法感兴趣。芦荟拥有许多有益的成分,同时一些研究也报告了它潜在的有害影响。芦荟在支架材料中的存在增加了再生细胞的活力。这是至关重要的了解芦荟如何与人体及其生理相互作用时,用于牙科疾病和不适。芦荟叶中存在的蒽醌、芦荟大黄素和芦荟素等成分具有很强的抗菌和抗病毒特性。因此,本文回顾了目前有关芦荟作为替代或辅助治疗牙科疾病的文献。
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引用次数: 0
Prevalence of Newcastle Disease Virus in Pakistan, its present status and future challenges 巴基斯坦新城疫病毒流行现状及未来挑战
Pub Date : 2021-12-15 DOI: 10.47262/bl/7.2.20210901
Muhammad, Abrar, Sidra, Rao, Lyba, Bashir, Fiza, Abbas, Farkhanda Sarwar, H. Fatima, A. Kanwal, Taiba Asif, Shoaib, Akhtar, Samra, Islam, Maryam, Liaqat, M. Luqman, N. Mukhtar
Newcastle disease is caused by Newcastle Disease Virus (NDV) leads to severe morbidity and mortality in poultry throughout the world and considered as lentogenic, mesogenic or velogenic based on the mean death of the chicken embryo. The NDV velogenic strain is deadly endemic in Pakistan. Poultry is considered as the second major industry in Pakistan having annual growth of 8-10%. Unfortunately, the increase of NDV cases leads to severe cost impact, loss of production and livelihood. This review highlights the current status and epidemiology of NDV in Pakistan. Various genotypes and sub-genotypes have been identified in Pakistan. Various ND cases have been reported in Pakistan which has very bad consequences on the economy and dealing of poultry products.
新城疫病是由新城疫病病毒(NDV)引起的一种疫病,在全世界的家禽中引起严重的发病率和死亡率,根据鸡胚的平均死亡率分为慢源性、中源性和速源性。NDV的速度性毒株是巴基斯坦致命的地方性毒株。家禽被认为是巴基斯坦的第二大产业,年增长率为8-10%。不幸的是,新冠病毒病例的增加导致了严重的成本影响、生产和生计损失。本文综述了NDV在巴基斯坦的现状和流行病学。在巴基斯坦已鉴定出各种基因型和亚基因型。巴基斯坦已经报告了各种ND病例,这对经济和家禽产品的处理产生了非常严重的后果。
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引用次数: 1
Study on effect of hair coat color on various reproductive attributes of Cholistani service bulls 毛色对千里斯坦服役公牛各生殖性状影响的研究
Pub Date : 2021-12-04 DOI: 10.47262/bl/7.2.20210814
U. Riaz, Umer Farooq, M. Idris, Mushtaq Hussain, Lashari, S. Sajjad, S. Hameed, Syed Aamir Mehmood, Bukhari
The objective of the present study was to assess the possible effect of hair coat color on various orchidometric, seminal and andrological attributes of black-coated and brown-coated Cholistani service bulls. Adult Cholistani bulls (n= 8) were grouped as black-spotted (n= 4) and brown-spotted (n=4). Semen collection was performed once weekly (2 ejaculates/collection) using artificial vagina (AV) throughout the study period (October-May). Semen samples were evaluated for various physical attributes. Body weight and orchidometric attributes of the bulls were attained using calipers. Blood sampling was performed twice weekly and serum testosterone level was deduced through automated analyzer. The scrotal circumference, Scrotal Skin Fold Thickness and Paired Testicular Volume were significantly higher (P<0.05) in black-spotted Cholistani bulls as compared to brown-spotted bulls. Similarly, the ejaculatory volume (5.8±0.1 mL) and individual sperm motility (63.3±1.4%) were significantly higher (P<0.05) in black-spotted bulls. Percentage of live spermatozoa, and spermatozoa with normal morphology and acrosome was also higher in black-spotted bulls though statistically non-significant (P>0.05). Amongst post-thaw seminal attributes, percentage of live spermatozoa, and spermatozoa with normal morphology and acrosome were significantly higher (P<0.05) in black-spotted bulls. Similarly, serum testosterone level in black-spotted Cholistani bulls (6.9±0.3 ng/mL) was significantly higher (P<0.05) compared to brown-spotted bulls (5.4±0.3 ng/mL). The black-spotted Cholistani service bulls showed substantially better orchidometric and seminal attributes allied with higher serum level of testosterone.
本研究的目的是评估毛颜色对黑被毛和棕被毛千氏公牛的各种兰花、精子和雄性特征的可能影响。成年公牛(n= 8)分为黑斑公牛(n=4)和褐斑公牛(n=4)。在整个研究期间(10月至5月),使用人工阴道(AV)每周采集一次精液(2次射精/采集)。对精液样本的各种物理属性进行了评估。用卡尺测量公牛的体重和兰花性状。每周抽血2次,通过自动分析仪测定血清睾酮水平。阴囊周长、阴囊皮褶厚度、配对睾丸体积显著高于对照组(P0.05)。在解冻后的精液属性中,黑点公牛的活精子比例、形态和顶体正常的精子比例显著高于黑点公牛(P<0.05)。黑斑公牛血清睾酮水平(6.9±0.3 ng/mL)显著高于褐斑公牛(5.4±0.3 ng/mL) (P<0.05)。黑斑Cholistani服役公牛表现出更好的睾丸测量和精液属性,与较高的血清睾酮水平相关。
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引用次数: 1
Anti-microbial, antioxidant potential of Cassia fistula and study their phytochemical assessments 决明子瘘管的抗微生物、抗氧化潜能及其植物化学评价研究
Pub Date : 2021-11-23 DOI: 10.47262/bl/7.2.20210803
M. Sharif, F. Ansari, Najamul Hassan
Cassia fistula (C. fistula) is a flowering plant and a member of Fabaceae family. This study was designed to examine the antibacterial, antioxidant and phytochemical activity of ethanolic extract of C. fistula plant. The microbial inhibitory effect of ethanolic extracts of C. fistula was tested against Gram positive isolates such as Bacillus cereus, Staphylococcus aureus and Gram-negative isolates such as Salmonella typhi, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa using disc diffusion method and well diffusion method. The 25 mg extract of C. fistula leaves (CF-05) showed more zone of inhibition against Salmonella typhi, i.e., (21mm) and in 50 mg extract of CF-13 fruit showed best zone of inhibition against Salmonella typhi, i.e., 17 mm. Qualitative analysis and antioxidant activity at various concentrations was also measured. The phytochemical analysis showed the presence of alkaloids, carbohydrates, fats, tannins, flavonoids, saponins, terpenoids, and sterols. The antioxidant activity in 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity revealed the distinguished antioxidant activity of C. fistula.
决明子是一种开花植物,是豆科植物。摘要本研究旨在研究鸢尾草乙醇提取物的抑菌、抗氧化及植物化学活性。采用盘式扩散法和孔式扩散法,对革兰氏阳性分离株蜡样芽孢杆菌、金黄色葡萄球菌和革兰氏阴性分离株伤寒沙门氏菌、肺炎克雷伯菌、大肠杆菌、铜绿假单胞菌进行抑菌试验。其中,25 mg叶提取物(CF-05)对伤寒沙门菌的抑制区最大,为21mm; 50 mg果提取物(CF-13)对伤寒沙门菌的抑制区最大,为17 mm。定性分析和测定了不同浓度下的抗氧化活性。植物化学分析显示存在生物碱、碳水化合物、脂肪、单宁、类黄酮、皂苷、萜类和甾醇。对2,2 -二苯基-1-吡啶酰肼(DPPH)自由基的清除活性显示了其独特的抗氧化活性。
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引用次数: 0
Computational detection, analysis and interpretations of genomic variants in human diseases associated GENEMDM 2 与GENEMDM 2相关的人类疾病基因组变异的计算检测、分析和解释
Pub Date : 2021-11-20 DOI: 10.47262/bl/7.2.20210705
M. Baksh, Farkhanda Yasmin, Majeeda Rasheed, Waqas, Farooq, M. S. Iqbal, U. Ashfaq
Most of the mutations described in human MDM2 are tolerated without significantly disrupting the corresponding structural or molecular function. However, some of them are associated with a variety of human diseases, including cancer. Numerous computational methods have been developed to predict the effects of missense single nucleotide variants (SNVs). The non-synonymous single nucleotide polymorphisms affect the function of XRCC1, which impairs the ability to repair DNA and therefore increases the risk of diseases such as cancer. In this study, sequence and structure-based computational tools were used to screen the total listed coding SNPs of the MDM2 gene in order to recognize and describe them. The potential 6 ns SNP of MDM2 were identified from 29 ns SNP by consistent analysis using computational tools PolyPhen 2, SIFT, PANTHER and cSNP. The computational methods were used to systematically classify functional mutations in the regulatory and coding regions that modify the expression and function of the MDM2 enzyme. The HOPE project also made it possible to elaborate the structural effects of the substitutions of amino acids. In silico analysis predicted that rs759244097 is harmful. This study concluded that identifying this SNP will help to determine an individual's cancer susceptibility, prognosis and further treatment. Furthermore, current high-throughput sequencing efforts and the need for extensive interpretation of protein sequence variants requires more efficient and accurate computational methods in the coming years.
在人类MDM2中描述的大多数突变都是耐受的,而不会显著破坏相应的结构或分子功能。然而,其中一些与包括癌症在内的各种人类疾病有关。许多计算方法已经发展到预测错义单核苷酸变异(snv)的影响。非同义单核苷酸多态性影响XRCC1的功能,从而损害修复DNA的能力,从而增加癌症等疾病的风险。本研究使用基于序列和结构的计算工具筛选MDM2基因的编码snp,以识别和描述它们。利用计算工具PolyPhen 2、SIFT、PANTHER和cSNP进行一致性分析,从29 ns SNP中鉴定出MDM2潜在的6 ns SNP。计算方法用于系统地分类调节区和编码区改变MDM2酶的表达和功能的功能突变。HOPE项目还使阐明氨基酸取代的结构效应成为可能。硅分析预测rs759244097是有害的。这项研究的结论是,识别这种SNP将有助于确定个体的癌症易感性、预后和进一步的治疗。此外,目前的高通量测序工作和对蛋白质序列变异的广泛解释需要在未来几年更有效和准确的计算方法。
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引用次数: 0
RISPR-Cas9: a weapon against COVID-19 RISPR-Cas9:对抗COVID-19的武器
Pub Date : 2021-11-20 DOI: 10.47262/bl/7.2.20210820
In current pandemic circumstances, novel coronavirus is a salutary challenge for all over the world and coronavirus used the host cell for replication. Coronavirus usually use the host cellular products to perform their basic functions. Various specific target sites also present in coronavirus proteins for target-specific therapy such as small inhibitor molecule for viral polymerase or prevent the attachment of viruses to the receptor sites for vaccination purpose. The virus attaches to ACE2 receptors and uses enzyme to cleave translated products which encodes for various enzymes like RNA polymerase, helicase etc. The system needs some processes which lead for the disturbance and make the virus unable to replicate. The recombinant DNA technology makes a great advancement in every field of life with a number of importance in agriculture, industries, and clinics. It is used to manipulate the genetic material of living organism for the purpose of producing desirable products such as disease resistant crops, treatment of cancer, genetic disease and viral disease. Thus, for the purpose of antiviral strategies, the specific technique called CRISPR/Cas9 is used, and this technique has the capability to target specific nucleotide sequence inside the genome of coronavirus.
在当前大流行形势下,新型冠状病毒对全世界都是一个有益的挑战,冠状病毒利用宿主细胞进行复制。冠状病毒通常使用宿主细胞产物来执行其基本功能。冠状病毒蛋白中还存在各种特异性靶点,用于靶向治疗,如病毒聚合酶的小抑制剂分子或用于疫苗接种目的的防止病毒附着在受体位点。病毒附着在ACE2受体上,利用酶来切割翻译产物,这些翻译产物编码各种酶,如RNA聚合酶,解旋酶等。系统需要一些过程来引起干扰,使病毒无法复制。重组DNA技术在生活的各个领域都取得了巨大的进步,在农业、工业和临床中具有重要意义。它用于操纵活生物体的遗传物质,以生产诸如抗病作物、治疗癌症、遗传疾病和病毒性疾病等理想产品。因此,为了抗病毒策略的目的,使用了称为CRISPR/Cas9的特定技术,该技术具有靶向冠状病毒基因组内特定核苷酸序列的能力。
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引用次数: 0
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Biomedical Letters
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