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| 1 | Effect of sodium arsenite on spermatogenesis, plasma gonadotrophins and testosterone in rats显示文摘Aim:To investigate the effect of arsenic on spermatogenesis.Methods:Mature(4 months old)Wistar rats were intraperitoneally administered sodium arsenite at doses of 4,5 or 6mg·kg^-1·day^-1 for 26 days.Different varieties of germ cells at stage Ⅶ seminiferous epithelium cycle,namely,type A spermatogonia(ASg),preleptotene spermatocytes(pLSc),midpachytene spermatocytes(mPSc) and step 7 spermatids(7Sd) were quantitatively evaluated, along with radioimmunoassay of plasma follicle-stimulating hormone(FSH),lutuneizing hormone(LH),testosterone and assessment of the epididymal sperm count.Results:In the 5 and 6 mg/kg groups,there were significant dosedependent decreases in the accessory sex organ weights,epididymal sperm count and plasma concentrations of LH,FSH and testosterone with massive degeneration of all the germ cells at stage Ⅶ,The changes were insignificant in the 4 mg/kg group.Conclusion:Arsenite has a suppressive influence on spermatogenesis and gonadotrophin and testosterone release in rats. | Mahitosh Sarkar Gargi Ray Chaudhuri Aloke Chattopadhyay Narendra Mohan Biswas | 2003 | Asian Journal of Andrology2003,5,1: | 24 |
| 2 | A Weakly Supervised Deep Learning Framework for Sorghum Head Detection and Counting显示文摘The yield of cereal crops such as sorghum(Sorghum bicolor L.Moench)depends on the distribution of crop-heads in varying branching arrangements.Therefore,counting the head number per unit area is critical for plant breeders to correlate with the genotypic variation in a specific breeding field.However,measuring such phenotypic traitsmanually is an extremely labor-intensive process and suffers from low efficiency and human errors.Moreover,the process is almost infeasible for large-scale breeding plantations or experiments.Machine learning-based approaches like deep convolutional neural network(CNN)based object detectors are promising tools for efficient object detection and counting.However,a significant limitation of such deep learningbased approaches is that they typically require a massive amount of hand-labeled images for training,which is still a tedious process.Here,we propose an active learning inspired weakly supervised deep learning framework for sorghum head detection and counting from UAV-based images.We demonstrate that it is possible to significantly reduce human labeling effort without compromising final model performance(��2 between human count and machine count is 0.88)by using a semitrained CNN model(i.e.,trained with limited labeled data)to perform synthetic annotation.In addition,we also visualize key features that the network learns.This improves trustworthiness by enabling users to better understand and trust the decisions that the trained deep learning model makes. | Sambuddha Ghosal Bangyou Zheng Scott CChapman Andries BPotgieter David RJordan Xuemin Wang Asheesh KSingh Arti Singh Masayuki Hirafuji Seishi Ninomiya Baskar Ganapathysubramanian Soumik Sarkar Wei Guo | 2019 | Plant Phenomics2019,1,1: | 16 |
| 3 | Biochar and its importance on nutrient dynamics in soil and plant显示文摘Biochar,an environmentally friendly soil conditioner,is produced using several thermochemical processes.It has unique characteristics like high surface area,porosity,and surface charges.This paper reviews the fertilizer value of biochar,and its effects on soil properties,and nutrient use efficiency of crops.Biochar serves as an important source of plant nutrients,especially nitrogen in biochar produced from manures and wastes at low temperature(≤400℃).The phosphorus,potassium,and other nutrient contents are higher in manure/waste biochars than those in crop residues and woody biochars.The nutrient contents and pH of biochar are positively correlated with pyrolysis temperature,except for nitrogen content.Biochar improves the nutrient retention capacity of soil,which depends on porosity and surface charge of biochar.Biochar increases nitrogen retention in soil by reducing leaching and gaseous loss,and also increases phosphorus availability by decreasing the leaching process in soil.However,for potassium and other nutrients,biochar shows inconsistent(positive and negative)impacts on soil.After addition of biochar,porosity,aggregate stability,and amount of water held in soil increase and bulk density decreases.Mostly,biochar increases soil pH and,thus,influences nutrient availability for plants.Biochar also alters soil biological properties by increasing microbial populations,enzyme activity,soil respiration,and microbial biomass.Finally,nutrient use efficiency and nutrient uptake improve with the application of biochar to soil.Thus,biochar can be a potential nutrient reservoir for plants and a good amendment to improve soil properties. | Md Zahangir Hossain Md Mezbaul Bahar Binoy Sarkar Scott Wilfred Donne Young Sik Ok Kumuduni Niroshika Palansooriya Mary Beth Kirkham Saikat Chowdhury Nanthi Bolan | 2020 | Biochar2020,2,4: | 15 |
| 4 | Potential antibacterial activity of berberine against multi drug resistant enterovirulent Escherichia coli isolated from yaks(Poephagus grunniens) with haemorrhagic diarrhoea显示文摘Objective:To evaluate the antimicrobial efficacy of berberine,a plant alkaloid.Methods:Five multi-drug resistant(MDR) STEC/EPEC and five MDR ETEC isolates from yaks with haemorrhagic diarrhoea were selected for the study.Antibacterial activity of berberine was evaluated by broth dilution and disc diffusion methods.The binding kinetics of berberine to DNA and protein was also enumerated.Results:For both categories of enterovirulent Escherichia coli(E.roli) isolates, berberine displayed the antibaclerial effect in a dose dependent manner.The MIC50 of berberine chloride for STEC/EPEC isolates varied from 2.07μM to 3.6μM with a mean of(2.95±0.33)μM where as for ETEC strains it varied from 1.75 to 1.96μM with a mean of(1.87±0.03)μM. Berberine bind more tightly with double helix DNA with Bmax and Kd of(24.68±2.62) and(357.8±57.8),respectively.Berberine reacted with protein in comparatively loose manner with Bmax and Kd of(18.9±3.83) and <286.2±113.6),respectively.Conclusions:The results indicate clearly that berberine may serve as a good antibacterial against multi drug resistant E.coli. | Samiran Bandyopadhyay Pabitra H Patra Achintya Mahanti Dipak K Mondal Premanshu Dandapat Subhasis Bandyopadhyay Indranil Samanta Chandan Lodh Asit K Bera Debasish Bhattacharyya Mihir Sarkar Kishore K Baruah | 2013 | Asian Pacific Journal of Tropical Medicine2013,6,4: | 11 |
| 5 | Optimization of process parameters for the bioconversion of activated sludge by Penicillium corylophilum, using response surface methodology显示文摘为由毛丛 corylophilum 的 activatedsludge 的 bioconversion 的过程参数的优化也就是是 investigatedusing 反应表面方法论( RSM ) .Thethree 参数 33 °C 的温度, 150 r/min 的焦虑,并且从真菌的 treatment.The 的以前的学习选择为 centerpoint 的 5were 的 pH 化学的氧需求(货到付款)上的试验性的数据移动(%)旁边用多重 regressionanalysis.The 最佳进程条件 weredetermined | Sarkar Mannan Ahmadun Fakhru'l-Razi Md Zahangir Alam | 2007 | Journal of Environmental Sciences2007,19,1: | 8 |
| 6 | RNAi-Mediated Silencing of ITPK Gene Reduces Phytic Acid Content,Alters Transcripts of Phytic Acid Biosynthetic Genes,and Modulates Mineral Distribution in Rice Seeds显示文摘Phytic acid is the principal storage form of phosphorus in plant seeds and an essential signalling molecule in several regulatory processes of plant development.However,it is known as an anti-nutrient compound owing to its potent chelating property.Thus,reducing the phytic acid content in crops is desirable.Studies involving regulation of MIPS and IPK1 genes to generate low phytate rice have been reported earlier.However,the functional significance of OsITPK and the effect of its down-regulation on phytic acid content and the associated pleiotropic effects on rice have not yet been investigated.In this study,tissue specific RNA interference(RNAi)-mediated down-regulation of a major ITPK homolog(OsITP5/6K-1)resulted in 46.2%decrease in phytic acid content of T2 transgenic seeds with a subsequent 3-fold enhancement in the inorganic phosphorus content.Silencing of OsITP5/6K-1 altered the transcript levels of essential phytic acid pathway genes,without significantly affecting the transcript levels of other OsITPK homologs.Furthermore,the mapping of elements through X-ray microfluorescence analysis revealed significant changes in the spatial distribution pattern and translocation of elements in low phytate seeds.Additionally,low phytate polished seeds exhibited 1.3-fold and 1.6-fold enhancement in iron and zinc content in the grain endosperm,respectively.Silencing of OsITP5/6K-1 also altered the amino acid and myo-inositol content of the transgenic seeds.Our results successfully established that RNAi-mediated silencing of OsITP5/6K-1 gene significantly reduced the phytate levels in seeds without hampering the germination potential of seeds and plant growth.The present study provided an insight into the mechanism of phytic acid biosynthesis pathway. | Aritra KARMAKAR Sananda BHATTACHARYA Shinjini SENGUPTA Nusrat ALI Sailendra Nath SARKAR Karabi DATTA Swapan K.DATTA | 2020 | Rice science2020,27,4: | 7 |
| 7 | Curcumin reverses T cell-mediated adaptive immune dysfunctions in tumor-bearing hosts显示文摘Immune dysfunction is well documented during tumor progression and likely contributes to tumor immune evasion.CD81 cytotoxic T lymphocytes(CTLs)are involved in antigen-specific tumor destruction and CD41 T cells are essential for helping this CD81 T cell-dependent tumor eradication.Tumors often target and inhibit T-cell function to escape from immune surveillance.This dysfunction includes loss of effector and memory T cells,bias towards type 2 cytokines and expansion of T regulatory(Treg)cells.Curcumin has previously been shown to have antitumor activity and some research has addressed the immunoprotective potential of this plant-derived polyphenol in tumor-bearing hosts.Here we examined the role of curcumin in the prevention of tumor-induced dysfunction of T cell-based immune responses.We observed severe loss of both effector and memory T-cell populations,downregulation of type 1 and upregulation of type 2 immune responses and decreased proliferation of effector T cells in the presence of tumors.Curcumin,in turn,prevented this loss of T cells,expanded central memory T cell(TCM)/effector memory T cell(TEM)populations,reversed the type 2 immune bias and attenuated the tumor-induced inhibition of T-cell proliferation in tumor-bearing hosts.Further investigation revealed that tumor burden upregulated Treg cell populations and stimulated the production of the immunosuppressive cytokines transforming growth factor(TGF)-b and IL-10 in these cells.Curcumin,however,inhibited the suppressive activity of Treg cells by downregulating the production of TGF-b and IL-10 in these cells.More importantly,curcumin treatment enhanced the ability of effector T cells to kill cancer cells.Overall,our observations suggest that the unique properties of curcumin may be exploited for successful attenuation of tumor-induced suppression of cell-mediated immune responses. | Sankar Bhattacharyya Dewan Md Sakib Hossain Suchismita Mohanty Gouri Sankar Sen Sreya Chattopadhyay Shuvomoy Banerjee Juni Chakraborty Kaushik Das Diptendra Sarkar Tanya Das Gaurisankar Sa | 2010 | Cellular & Molecular Immunology2010,7,4: | 7 |
| 8 | 妊娠期非酒精性脂肪性肝病与孕产妇及围产期不良结局相关显示文摘【据Journal of Hepatology 2020年4月报道】题:妊娠期非酒精性脂肪性肝病与孕产妇及围产期不良结局相关(作者Sarkar M等)非酒精性脂肪性肝病(NAFLD)在青年人中发病率呈上升趋势,该疾病对育龄期妇女具有潜在的影响。目前尚不清楚妊娠期NAFLD是否给孕期或围产期健康带来更大的风险。 | 邵玥明 温晓玉 SARKAR M GRAB J DODGE JL | 2020 | 临床肝胆病杂志2020,36,9: | 7 |
| 9 | Synthesis of ion imprinted polymers for selective recognition and separation of rare earth metals显示文摘Lanthanide-ion imprinted polymers(L-IIPs) were synthesized by stoichiometric amounts of rare earth ions and the cavities in the polymers were created for the corresponding lanthanide ions. The maximum sorption capacities were estimated to be 125.3, 126.5, 127.6, 128.2 and 129.1 mg/g for Pr, Nd, Sm, Eu and Gd, respectively at p H 6. In the selectivity study, the L-IIPs exhibited good selectivity to the specific rare earth ions in the presence of coexisting cations. The imprinting results were found to be excellent with some rare earth ions over other competitor rare earth ions with the same charges and close ionic radius. | Mashitah M.Yusoff Nik Rohani Nik Mostapa Md Shaheen Sarkar Tapan Kumar Biswas Md Lutfor Rahman Sazmal Effendi Arshad Mohd Sani Sarjadi Ajaykumar D.Kulkarni | 2017 | Journal of Rare Earths2017,35,2: | 6 |
| 10 | Potential of Steinernema carpocapsae(Weiser) as a biological control agent against potato tuber moth, Phthorimaea operculella(Zeller)(Lepidoptera: Gelechiidae)显示文摘The entomopathogenic nematode,Steinernema carpocapsae,was evaluated for control of the potato tuber moth,Phthorimaea operculella,under laboratory conditions.We evaluated different concentrations of S.carpocapsae for control of 2 nd,3 rd,and 4 th instar P.operculella.The median lethal concentration(LC50)of S.carpocapsae infective juveniles(IJs)to 2 nd,3 rd and 4 th instar larvae of P.operculella was 200,363,181 IJs mL–1,respectively.With the extension of treatment time,the cumulative mortality increased for 2 nd,3 rd,and 4 th instar larvae and pupae of P.operculella.Fourth instars were the most susceptible for all observation periods.Therefore,our results suggest that S.carpocapsae could be an effective biological control agent for P.operculella. | YAN Jun-jie Shovon Chandra SARKAR MENG Rui-xia Stuart REITZ GAO Yu-lin | 2020 | Journal of Integrative Agriculture2020,19,2: | 6 |
| 11 | Identification of lineariifolianoid A as a novel dual NFAT1 and MDM2 inhibitor for human cancer therapy显示文摘There is an increasing interest in development of novel anticancer agents that target oncogenes.We have recently discovered that nuclear factor of activated T cells 1(NFAT1) is a novel regulator of the Mouse Double Minute 2(MDM2) oncogene and the NFAT1-MDM2 pathway has been implicated in human cancer development and progression,justifying that targeting the NFAT1-MDM2 pathway could be a novel strategy for discovery and development of novel cancer therapeutics.The present study was designed to examine the anticancer activity and underlying mechanisms of action of lineariifolianoid A(LinA),a novel natural product inhibitor of the NFAT1-MDM2 pathway.The cytotoxicity of LinA was first tested in various human cancer cell lines in comparison with normal cell lines.The results showed that the breast cancer cells were highly sensitive to LinA treatment.We next demonstrated the effects of LinA on cell proliferation,colony formation,cell cycle progression,and apoptosis in breast cancer MCF7 and MDA-MB-231 cells,in dose-dependent and p53-independent manners.LinA also inhibited the migration and invasion of these cancer cells.Our mechanistic studies further indicated that its anticancer activities were attributed to its inhibitory effects on the NFAT1-MDM2 pathway and modulatory effects on the expression of key proteins involved in cell cycle progression,apoptosis,and DNA damage.In summary,LinA is a novel NFAT1-MDM2 inhibitor and may be developed as a preventive and therapeutic agent against human cancer. | Jiang-Jiang Qin Sushanta Sarkar Sukesh Voruganti Rajesh Agarwal Wei Wang Ruiwen Zhang | 2016 | The Journal of Biomedical Research2016,30,4: | 5 |
| 12 | Efficient removal of heavy metals from electroplating wastewater using polymer ligands显示文摘(hydroxamic 酸) Poly, -poly(amidoxime) chelating ligands 被综合从 poly (甲基 acrylate-co-acrylonitrile ) 为把有毒的金属离子从工业废水移开的 grafted 相思树纤维素。这些 ligands 显示出更高的吸附能力到铜(2.80 mmol 湩浩浵椠 ? 湯 ? 牯敤 ? 浳污敬 ? 桴湡洠獯 ?硥獩楴杮愠杬牯瑩浨 | Md. Lutfor RAHMAN Shaheen M. SARKAR Mashitah Mohd YUSOFF | 2016 | Frontiers of Environmental Science & Engineering2016,10,2: | 5 |
| 13 | Curcumin as a potential therapeutic candidate for Helicobacter pylori associated diseases显示文摘Curcumin, a yellow pigment and principal polyphenolic Curcuminoid obtained from the turmeric rhizome Curcuma longa, is commonly used as a food-coloring agent. Studies suggest that curcumin has a wide range of beneficial properties e.g., anti-inflammatory, antioxidant, anti-cancer, anti-proliferative, anti-fungal and anti-microbial. These pleiotropic activities prompted several research groups to elucidate the role of curcumin in Helicobacter pylori(H. pylori) infection. This is the first review with this heading where we discussed regarding the role of curcumin as an anti-H. pylori agent along with its potential in other gastrointestinal diseases. Based on several in vitro, early cell culture, animal research and few pre-clinical trials, curcumin projected as a potential therapeutic candidate against H. pylori mediated gastric pathogenesis. This review sheds light on the anti-H. pylori effects of curcumin in different models with meticulous emphasis on its anti-oxidant, anti-inflammatory and anti-carcinogenic effects as well as some critical signaling and effecter molecules. Remarkably, non-toxic molecule curcumin fulfills the characteristics for an ideal chemopreventive agent against H. pylori mediated gastric carcinogenesis but the foremost challenge is to obtain the optimum therapeutic levels of curcumin, due to its low solubility and poor bioavailability. Further, we have discussed about the possibilities for improving its efficacy and bioavailability. Lastly, we concluded with the anticipation that in near future curcumin may be used to develop a therapeutic drug against H. pylori mediated gastric ailments through improved formulation or delivery systems, facilitating its enhanced absorption and cellular uptake. | Avijit Sarkar Ronita De Asish K Mukhopadhyay | 2016 | World Journal of Gastroenterology2016,22,9: | 5 |
| 14 | Leaf Photosynthetic Activity and Antioxidant Defense Associated with Sub1 QTL in Rice Subjected to Submergence and Subsequent Re-aeration显示文摘The influence of submergence on photosynthesis and antioxidant capacities in rice varieties Swarna and Swarna-Sub1 with or without Sub1 QTL were evaluated under control,simulated complete submergence and subsequent re-aeration.The leaf photosynthetic rate and stomatal conductance decreased in the both varieties during the progression of submergence as compared to the control plants,but significant varietal differences were observed after 1 d of submergence.Submergence also altered the PSII activity,as reflected in a decrease in the values of Fo,Fm and Fv/Fm and degradation of chlorophyll,more in Swarna than in Swarna-Sub1.During early submergence period,the activities of superoxide dismutase(SOD),ascorbate peroxidase(APX),dehydroascorbate reductase(DHAR),glutathione reductase(GR) against reactive oxygen species were increased in the both varieties.However,with the progress of submergence period(after 7 d),the activities of SOD,catalase(CAT),APX,guaiacol peroxidase(GPX),GR and DHAR declined,more in Swarna than in Swarna-Sub1.During re-aeration,Swarna-Sub1 showed significant increase of above antioxidant enzymes but not in Swarna.Swarna-Sub1 improves photosynthetic activity,showing higher photosynthetic rate compared to Swarna under submergence and subsequent re-aeration because of less degradation of chlorophyll,higher stomatal conductance,and efficient PSII activity along with better antioxidant protection from oxidative damage. | Debabrata PANDA Ramani Kumar SARKAR | 2012 | Rice science2012,19,2: | 5 |
| 15 | Anti-endothelial cell antibody rich sera from rheumatic heart disease patients induces proinflammatory phenotype and methylation alteration in endothelial cells显示文摘Rheumatic heart disease(RHD)is a major cause of cardiovascular morbidity and mortality in developing nations like India.RHD commonly affects the mitral valve which is lined by a single layer of endothelial cells(ECs).The role of ECs in mitral valve damage during RHD is not well elucidated.In here,anti-endothelial cell antibody from RHD patients has been used to stimulate the ECs(HUVECs and HMVECs).ECs proinflammatory phenotype with increased expression of TNFa,IL-6,IL-8,IFNg,IL-1b,ICAM1,VCAM1,E-selectin,laminin B,and vimentin was documented in both ECs.The promoter hypomethylation of various key inflammatory cytokines(TNFa,IL-6,and IL-8),integrin(ICAM1)associated with leukocyte transendothelial migration,and extracellular matrix genes(vimentin,and laminin)were also observed.Further,the in-vitro data was in accordance with ex-vivo observations which correlated significantly with the etiological factors such as smoking,socioeconomic status,and housing.Thus,the study sheds light on the role of ECs in RHD which is a step forward in the elucidation of disease pathogenesis. | Mukul Rastogi Subendu Sarkar Ankita Makol Rana Sandip Singh Uma Nahar Saikia Dibyajyoti Banerjee Seema Chopra Anuradha Chakraborti | 2018 | Genes & Diseases2018,5,3: | 5 |
| 16 | Novel virulence factor dupA of Helicobacter pylori as an important risk determinant for disease manifestation:An overview显示文摘Helicobacter pylori(H.pylori)is a microaerophilic,Gram-negative,human gastric pathogen found usually in the mucous lining of stomach.It infects more than 50%of the world’s population and leads to gastroduodenal diseases.The outcome of disease depends on mainly three factors:Host genetics,environment and bacterial factors.Among these,bacterial virulence factors such as cagA,vacA are well known for their role in disease outcomes.However,based on the global epidemiological results,none of the bacterial virulence(gene)factors was found to be associated with particular diseases like duodenal ulcer(DU)in all populations.Hence,substantial importance has been provided for research in strain-specific genes outside the cag pathogenicity island,especially genes located within the plasticity regions.dupA found within the plasticity regions was first demonstrated in 2005 and was proposed for duodenal ulcer development and reduced risk of gastric cancer in certain geographical regions.Due to the discrepancies in report from different parts of the world in DU development related to H.pylori virulence factor,dupA became an interesting area of research in elucidating the role of this gene in the disease progression.In this review,we shed light on the detailed information available on the polymorphisms in dupA and their clinical relevance.We have critically appraised several pertinent studies on dupA and discussed their merits and shortcomings.This review also highlights dupA gene as an important biomarker for DU in certain populations. | Jawed Alam Avijit Sarkar Bipul Chandra Karmakar Mou Ganguly Sangita Paul Asish K Mukhopadhyay | 2020 | World Journal of Gastroenterology2020,26,32: | 5 |
| 17 | Development of Optimized Phenomic Predictors for Efficient Plant Breeding Decisions Using Phenomic-Assisted Selection in Soybean显示文摘The rate of advancement made in phenomic-assisted breeding methodologies has lagged those of genomic-assisted techniques,which is now a critical component of mainstream cultivar development pipelines.However,advancements made in phenotyping technologies have empowered plant scientists with affordable high-dimensional datasets to optimize the operational efficiencies of breeding programs.Phenomic and seed yield data was collected across six environments for a panel of 292 soybean accessions with varying genetic improvements.Random forest,a machine learning(ML)algorithm,was used to map complex relationships between phenomic traits and seed yield and prediction performance assessed using two cross-validation(CV)scenarios consistent with breeding challenges.To develop a prescriptive sensor package for future high-throughput phenotyping deployment to meet breeding objectives,feature importance in tandem with a genetic algorithm(GA)technique allowed selection of a subset of phenotypic traits,specifically optimal wavebands.The results illuminated the capability of fusingML and optimization techniques to identify a suite of in-season phenomic traits that will allow breeding programs to decrease the dependence on resource-intensive end-season phenotyping(e.g.,seed yield harvest).While we illustrate with soybean,this study establishes a template for deploying multitrait phenomic prediction that is easily amendable to any crop species and any breeding objective。 | Kyle Parmley Koushik Nagasubramanian Soumik Sarkar Baskar Ganapathysubramanian Asheesh K.Singh | 2019 | Plant Phenomics2019,1,1: | 5 |
| 18 | 可吸收陶瓷改善椎弓根螺钉稳定性的体外生物力学试验显示文摘目的探讨在椎弓根螺钉置入时添加可吸收陶瓷Biobon对椎弓根螺钉稳定性的影响。方法采用28个L3~L5椎体标本,将椎弓根螺钉按标准操作分别置入两侧椎弓根,随机在其中一侧加Biobon。对其中16个椎体测试螺钉最大轴向拔出力F-max和螺钉拔出过程中达到最大轴向拔出力时的能量吸收值E-F-max及螺钉拔出一个螺距2.0mm时的能量吸收值E-2mm。另外12个椎体作梯增负荷的周期抗屈试验。结果同未加Biobon组比较,加入Biobon组的F-max增加了79.7%。E-F-max和E-2mm也分别增加了83.1%和68.2%,两组差异有非常显著性意义Wilcoxon检验,P<0.01。周期抗屈试验中,添加Biobon可使螺钉耐受更强的负荷或在同等负荷下仅产生较小的位移。结论在椎弓根螺钉置入时添加Biobon能显著提高其初始稳定性。 | 邵景范 MR Sarkar LE Claes L Kinzl 罗永湘 | 2001 | 中华骨科杂志2001,21,10: | 4 |
| 19 | An Experimental Method to Quantify Extractable Amino Acids in Soils from Southeast China显示文摘The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4 , Na2SO4 , NaCl, KCl) were reported. Results showed that 0.5 mol L-1 K2SO4 with a 5 times extraction was a better method to assess the concentration of extractable amino acids in soils. The total amino acids extracted from soil planted for tea were similar to the total inorganic nitrogen. While they extracted from vegetable soil and paddy soil were much lower than the total inorganic nitrogen. | CHEN Xian-you WU Liang-huan CAO Xiao-chuang Sarkar Animesh ZHU Yuan-hong | 2013 | Journal of Integrative Agriculture2013,12,4: | 4 |
| 20 | Emblica officinalis improves glycemic status and oxidative stress in STZ induced type 2 diabetic model rats显示文摘Objective:To evaluate the antidiabetic and antioxidant potential of Emblica officinalis(E.officinalis)fruit on normal and type 2 diabetic rats.Methods:Type 2 diabetes was induced into the male Long-Evans rats.The rats were divided into nine groups including control groups receiving water,type 2 diabetic controls,type 2 diabetic rats treated with glibenclamide(T2GT)and type 2diabetic rats treated with aqueous extract of fruit pulp of E.officinalis.They were fed orally for8 weeks with a single feeding.Blood was collected by cutting the tail tip on 0 and 28 days and by decapitation on 56 day.Packed red blood cells and serum were used for evaluating different biochemical parameters.Results:Four weeks administration of aqueous extract of E.officinalis improved oral glucose tolerance in type 2 rats and after 8 weeks it caused significant(P<0.007)reduction in fasting serum glucose level compared to 0 day.Triglycerides decreased by 14%but there was no significant change in serum ALT,creatinine,cholesterol and insulin level in any group.Furthermore,reduced erythrocyte malondialdehyde level showed no significant change(P<0.07)but reduced glutathione content was found to be increased significantly(P<0.05).Conclusions:The aqueous extract of E.officinalis has a promising antidiabetic and antioxidant properties and may be considered for further clinical studies in drug development. | Aneesa Ansari Md.Shahed Zaman Shahriar Md.Mehedi Hassan Shukla Rani Das Begum Rokeya Md.Anwarul Haque Md.Enamul Haque Nirupam Biswas Tama Sarkar | 2014 | Asian Pacific Journal of Tropical Medicine2014,7,1: | 4 |