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Adverse Effects of Allelopathy from Legume Crops and Its Possible Avoidance 被引量:2
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作者 md. Fuad Mondal md. asaduzzaman Toshiki Asao 《American Journal of Plant Sciences》 2015年第6期804-810,共7页
Plant releases many bioactive chemicals from its various parts such as leaves, stem, root and sometimes decomposed body through different mechanism into its surrounding environment. These bioactive chemicals are often... Plant releases many bioactive chemicals from its various parts such as leaves, stem, root and sometimes decomposed body through different mechanism into its surrounding environment. These bioactive chemicals are often termed as allelochemicals because they interact with the surrounding environment. This interaction is either positive or negative. Effects of allelochemicals to the agricultural and biological ecosystem are well documented. In leguminosae family many species are involved in releasing of allelochemicals. Many researchers found that this allelochemicals have both positive and detrimental effects on the successive legume crops. Legume monoculture is common in many parts of the world where they cause a numbers of ecological and economic problems such as decline in crop yield due to soil sickness, regeneration failure and replant problem. These negative effects of allelochemicals open a great concern on allelopathy research. This article reviews the adverse effects of allelochemicals, their extraction and isolation, mechanism inside the plant body. These all are done to find out the possible selection methods of succeeding crops to avoid the allelopathic effects in the next crop of a monoculture farm field. The main purpose of this article is to highlight the adverse allelopathic effects of legume crops to provide ways for sustainable development in agro-ecosystem. 展开更多
关键词 ALLELOPATHY ALLELOCHEMICALS Replant INJURY Succeeding CROPS
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Neuroprotective Effect of Phyllanthus acidus L. on Learning and Memory Impairment in Scopolamine-Induced Animal Model of Dementia and Oxidative Stress: Natural Wonder for Regulating the Development and Progression of Alzheimer’s Disease 被引量:2
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作者 md. Sahab Uddin Abdullah Al Mamun +6 位作者 md. Saddam Hossain Muhammad Ashaduzzaman md. Ali Asif Noor md. Sarwar Hossain md. Josim Uddin Jyotirmoy Sarker md. asaduzzaman 《Advances in Alzheimer's Disease》 2016年第2期53-72,共20页
Nature is the best source of complementary and alternative medicine. The plant Phyllanthus acidus (PA) L. has been used traditionally in pain, inflammatory and oxidative stress related disorders. In this consequence, ... Nature is the best source of complementary and alternative medicine. The plant Phyllanthus acidus (PA) L. has been used traditionally in pain, inflammatory and oxidative stress related disorders. In this consequence, methanolic extract of PA (MEPA) was selected to explore the ability of this plant to enhance cognitive function, brain antioxidant enzymes and anti-acetylcholinesterase activity which can be used for the treatment of oxidative stress related disorders like Alzheimer’s disease (AD). The purpose of this study was to investigate the neuroprotective effect of MEPA on learning and memory impairment in scopolamine-induced rats of dementia and oxidative stress. Treatment with MEPA (i.e., 100 and 200 mg/kg b.w.) was investigated in scopolamine-treated Swiss albino male rats for 14 days and its neuroprotective effects were examined using Elevated Plus Maze (EPM) test, Passive Avoidance (PA) test, Novel Object Recognition (NOR) test, Morris Water Maze (MWM) test as well as level of antioxidant enzymes such as catalase (CAT), super oxide dismutase (SOD), glutathione reductase (GSR), glutathione-S-transferase (GST), reduced glutathione (GSH), glutathione peroxidase (GSH-Px), lipid peroxidation (TBARS) contents and acetylcholinesterase (AChE) activity in rat brain tissue homogenates. Administration of MEPA significantly (P < 0.05, P < 0.01;P < 0.01) decreased RTL (retention transfer latency) in rats on 7<sup>th</sup> and 14<sup>th</sup> day compared to the disease control and control group in the EPM test. In PA test the doses of MEPA suggestively (P < 0.05, P < 0.001;P < 0.05, P < 0.01) increased STL (step-through latency) in rats on 7<sup>th</sup> and 14<sup>th</sup> day with respect to disease control and control group. For NOR test administration of MEPA considerably (P < 0.01, P < 0.001;P < 0.01) increased the DI (discrimination index) in rats with respect to that of disease control and control group. The doses of MEPA markedly (P < 0.05, P < 0.01;P < 0.01) decreased EL (escape latency) and significantly (P < 0.01, P < 0.001;P < 0.05, P < 0.01) increased TSTQ (time spent in the target quadrant) on successive days as compared to that of disease control and control group in the acquisition trial of MWM test. In case of probe trial of MWM test MEPA administration considerably (P < 0.01;P < 0.05, P < 0.01) increased TSTQ and significantly (P < 0.05, P < 0.01;P < 0.05, P < 0.01) increased TSA (time spent in the annuli) in rats on successive days as compared to that of disease control and control group. MEPA administration significantly (P < 0.05, P < 0.01, P < 0.001;P < 0.05, P < 0.01) increased the level of CAT, SOD, GSR, GST GSH, GSH-Px and markedly (P < 0.01;P < 0.01, P < 0.001) decreased TBARS level through inhibiting lipid peroxidation as well as significantly (P < 0.01, P < 0.001;P < 0.05, P < 0.01, P < 0.001) decreasing AChE activity in rats brain compared to the disease control and control group. The present study demonstrates that MEPA showed the neuroprotective effect by improving cognitive functions and reduces oxidative stress by increasing the level of brain antioxidant enzymes as well as decreasing lipid peroxidation and acetylcholinesterase activity. Therefore, this plant extract can be used for enhancing learning, memory, antioxidant potentiality and anti-acetylcholinesterase activity in neurodegenerative disorders like AD. 展开更多
关键词 NEUROPROTECTIVE Phyllanthus acidus Antioxidant Enzyme DEMENTIA Oxidative Stress Acetylcholinesterase Activity Alzheimer’s Disease
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Antidiabetic Drugs in Combination with Hydroxychloroquine Improve Glycemic Control in Alloxan Induced Diabetic Rats 被引量:1
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作者 Shaheda Zannah md. Saiful Islam +7 位作者 A. F. M. Towheedur Rahman md. asaduzzaman Abdul Alim Al Bari Yusuf Ali Gazi Jahirul Islam A. H. M. Khurshid Alam Hazrat Ali Mamunur Rashid 《Pharmacology & Pharmacy》 2014年第7期725-735,共11页
Worldwide prevalence of diabetes mellitus has become an issue of great concern in current decades. This life threatening disease is associated with worsening of glycemic control and progressive metabolic dysfunctions.... Worldwide prevalence of diabetes mellitus has become an issue of great concern in current decades. This life threatening disease is associated with worsening of glycemic control and progressive metabolic dysfunctions. Objective: Current study aimed to investigate the effect of hydroxychloroquine (HCQ) as an adjunct to glibenclamide or metformin on glycemic control in alloxan induced diabetic rats. Methods: HCQ was combined separately with two conventional anti-diabetic drugs;glibenclamide and metformin. At first, alloxan (120 mg/kg) induced diabetic rats were treated with single dose of metformin (850 mg/70 kg BW), glibenclamide (10 mg/70 kg BW) and HCQ (300 mg/70 kg BW) intraperitoneally once daily for two weeks. Then non fixed dose combinations of glibenclamide (5 mg/70 kg BW) with HCQ (150 mg/70 kg BW) and metformin (425 mg/70 kg BW) with HCQ (150 mg/70 kg BW) were injected along with those of the three drugs alone once daily for four weeks. Results: In alloxan induced diabetic rats, glibenclamide, metformin and their combination therapies reduced blood glucose level significantly but combination therapies are the most effective. Glibenclamide or metformin in combination with HCQ also significantly (P < 0.05) reduced the elevated levels of total cholesterol, triglycerides, and low density lipoprotein cholesterol (LDL-C) level and increased high density lipoprotein cholesterol (HDL-C) level. Moreover, HCQ potentiates the liver glycogen synthesis of metformin or glibenclamide. Conclusion: Outcomes of this investigation indicate that combination of glibenclamide or metformin with HCQ improves glycemic control and provides additional metabolic benefits, not achieved with either glibenclamide or metformin alone. 展开更多
关键词 DIABETES MELLITUS Glycemic Control HCQ GLIBENCLAMIDE METFORMIN
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Level of Stress, Predisposing Factors and Status of Mental Health among Pharmacy Students of a Private University of Dhaka, Bangladesh: A Cross Sectional Study
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作者 A. H. M. Nazmul Hasan md. Anzam Ul Islam +10 位作者 Smaranika Rahman Zobaida Mostarin Nishi md. Jakir Hossain md. Zobayer Hossain Gorapi Farhan Jamil md. Abu Sufian Zabun Nahar Kanij Nahar Deepa md. Hamiduzzaman md. asaduzzaman Mohiuddin Ahmed Bhuiyan 《Health》 2019年第2期222-232,共11页
Stress during tertiary educational period has significant negative effect on the performance of a student. Mental distress is increasing among students and is one of the important public health concerns. This study wa... Stress during tertiary educational period has significant negative effect on the performance of a student. Mental distress is increasing among students and is one of the important public health concerns. This study was carried out to investigate the socio demographic characteristics of students, level of their stress feeling, and status of mental health and to find out the co-relation of different factors associated with the level of stress feelings. A cross sectional study was conducted among the students of the Department of Pharmacy of UAP. A total of 504 students (181 male students and 323 female students) participated in this study. Feeling of severe stress was almost equal to both sexes. But, moderate level of stress was more associated with female students (N = 253, F = 78.33%) and overall female students were more stressful than male. Thought towards future career ranked one among many reasons of stress in students (59.67% for male students and 37.46% for female students). In terms of academic achievements, feeling of stress was higher in female students compared to male students (34.98% for female students vs. 15.47% for male students). Other factors such as unrealistic expectations, family relationship and affairs, socio economic condition, being of too busy also significantly participate in the development of stress in young mind. Mental health status was estimated by considering some facts such as state of shock due to unwanted life events, lacking of expression of emotions, reduced feeling of pleasure, unusual thinking, fear of any specific objects, short term memory loss, self identity disorder and lack of self confidence. We co-related different risk factors like age, gender, socio-economic condition, unrealistic thought patter to different levels of stress feeling. Feelings of stress were most among the student of 21 - 25 years of age. Socio-economic condition is always a great factor of stress, middle class society has more stress compared to other socio-economic classes. Psychological counseling is required in educational institution to detect and prevent mental distress and stress among students. 展开更多
关键词 STRESS Factors of STRESS MENTAL HEALTH
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A Smart Fluorescent Light Spectroscope to Identify the Pork Adulteration for Halal Authentication
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作者 Khondoker Ziaul Islam md. Abdullah Al Ahasan +3 位作者 md. Sanwar Hossain Mohammed Hadifur Rahman Ummey Sufia Mousumi md. asaduzzaman 《Food and Nutrition Sciences》 2021年第1期73-89,共17页
The complication of adulterated ingredients in processed food items is widely observed in the food industry and remains a continuous disquiet for end users. This problem may affect consumers’ spiritual beliefs, likew... The complication of adulterated ingredients in processed food items is widely observed in the food industry and remains a continuous disquiet for end users. This problem may affect consumers’ spiritual beliefs, likewise with their fitness and diet. Hence commercial foods should be scrutinized for the precision of the avowed ingredients. This study is dedicated to developing a Fluorescent light Spectroscope to identify the pork adulteration. A simple way of DNA extraction process has been introduced to make the system more convenient. The spectral bands linked with pork fat (PF), beef fat (BF) and their combinations in different food formulation were skimmed, and recognized by correlating them to those spectroscopically illustrative to clean Pork or PF and other different items. Every material has the properties to absorb some light of specific wavelength, and our activity is to determine thus wavelength range at which are absorbed or make any change by the target material. The findings have revealed that spectroscopy can be used as one of the procedures to detect and quantify of pork in different foods and beverages formulation for Halal verification purposes. Special laborious procedures and equipment both are essential for the existing testing methods named RT-PCR (Reverse transcription-polymerase chain reaction) and ELISA (enzyme-linked immunosorbent assay). Most of the food processors and dealers are not skillful to conduct sufficient testing for their products with all these sample preparation, extraction, analysis, and obtaining results which can be overcome by our proposed setup. 展开更多
关键词 Pork Adulteration SPECTROSCOPE DNA Extraction Fluorescence
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Simvastatin Potentiates the Antihyperglycemic, Antidyslipidimic and Antioxidative Effect of Glibenclamide on Alloxan-Induced Diabetic Rats
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作者 Mst. Marium Begum A. F. M. Towheedur Rahman +7 位作者 Saiful Islam md. asaduzzaman Hazrat Ali Yusuf Ali Shaheda Zannah A. H. M. Khurshid Alam Aziz Abdur Rahman Mamunur Rashid 《Pharmacology & Pharmacy》 2014年第11期1059-1069,共11页
The aim of the current study is to investigate the effect of combination of glibenclamide;an antidiabetic drug and simvastatin;a HMG-CoA reductase inhibitor on long-term (four weeks) alloxan-induced diabetes rats (ADR... The aim of the current study is to investigate the effect of combination of glibenclamide;an antidiabetic drug and simvastatin;a HMG-CoA reductase inhibitor on long-term (four weeks) alloxan-induced diabetes rats (ADRs). Methods: Alloxan (120 mg/kg body weight, BW) was injected intra-peritonially (i.p.) in rats. At first alloxan (120 mg/kg BW) induced diabetic rats were treated with single dose of glibenclamide (1.2 mg/70kg BW) and simvastatin (10 mg/70kg BW) for two weeks. Then fixed dose combinations of glibenclamide (0.6 mg/70kg BW) and simvastatin (5 mg/70kg BW) were injected along with those of two drugs for four weeks. Results: At first it was found that glibenclamide reduced significant amount of glucose in blood, but it had no significant effect on lipid profile on short term (two weeks) ADRs. In contrast, simvastatin had no effect on blood glucose level, whereas it significantly reduced total cholesterol (TC), triglycerides (TG) and low density lipoprotein cholesterol (LDL-C) and increased significant amount of high density lipoprotein cholesterol (HDL-C). However, pathological changes of pancreas’s Islets of Langerhans were observed only after long-term (four weeks) induction of alloxan in rats. The inhibitory effect of combination therapy on blood glucose, TC, TG and LDL-C level was higher than those of monotherapy alone on long term ADRs. In addition, treatment with combination therapy on long term ADRs showed higher amount of HDL-C level and super oxide dismutase and catalase enzyme activity than those with monotherapy. They also decreased serum glutamic pyruvic transaminase (SGPT) and Serum glutamic oxaloacetic transaminase (SGOT) level. Administration of simvastatin recovered Langerhans cells from shrinkage whereas glibenclamide displayed slight recovery. But the combination therapy showed complete recovery of Langerhans cells as compared with diabetic rats. Conclusion: Our present findings suggest that treatment of glibenclamide in combination with simvastatin may be more effective than mono-therapy for preventing diabetes in rats. It may also suggest that this combination may have some beneficial effects on reducing cardiovascular risks from long term diabetes in rats. 展开更多
关键词 DIABETES COMBINATION Therapy Gibenclamide SIMVASTATIN Beneficial Effects
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Innovation of Neuropsychopharmacological Experimental Methods to Investigate Attention in Human Participants and Its Validation by Randomized Double Blind Placebo Controlled Clinical Trial
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作者 md. Sahab Uddin Abdullah Al Mamun md. asaduzzaman 《Journal of Behavioral and Brain Science》 2016年第7期280-293,共14页
In terms of advancement of life to meet the challenges new method for neuropsychopharmacological research are continually developing to ensure superior safety, accuracy, efficacy, precision etc. In this experiment, we... In terms of advancement of life to meet the challenges new method for neuropsychopharmacological research are continually developing to ensure superior safety, accuracy, efficacy, precision etc. In this experiment, we suggested and validated two neuropsychopharmacological testing methods, these are Numeral Finding (NF) and Typo Revealing (TR) tests for the determination of attention in healthy aged human participants. The objective of this experiment was to generate more effective testing methods for the assessment of attention in human. The rationality of the aforementioned methods was checked by a randomized double blind placebo controlled clinical trial for the period of 21 days among healthy aged human participants. The experiment was conducted at Gazipur Sadar, Gazipur-1703, Dhaka, Bangladesh between the period of December 2015 and March 2016. The experiment center was the Department of Pharmacy, Southeast University, Dhaka-1213, Bangladesh. In this experiment, 60 healthy male participants between the age ranges of 40 to 50 years old were selected and randomly divided by simple randomization process into 3 groups with 20 participants in each. Ginkgo biloba standardized extract’s capsule (Giloba<sup>?</sup><sup></sup> and Kobi<sup>?</sup>) was used as a standard and as a placebo control psyllium seed husk (i.e., seed of the Plantago ovata) was used after filling in the hard gelatin capsule shell (size 0). Group 1 was treated with Giloba<sup>? </sup>in which each capsule contained 120 mg Ginkgo biloba standardized extract (GBG) and group 2 was treated with Kobi<sup>?</sup> in which each capsule contained 60 mg Ginkgo biloba standardized extract (GBK). The treatment procedure for group 3 was psyllium seed husk’s capsule that served as placebo control (PC). Throughout the experiment each capsule was administered 3 times daily. Treatment with Ginkgo biloba standardized extracts for successive days markedly increased the attention of the participants with respect to PC group. In the NF test, administration of GBG and GBK extracts significantly (P P P < 0.01) increased the attention of the participants on 14<sup>th</sup> and 21<sup>st</sup> day as compared to that of PC group. For TR test treatment with GBG and GBK extracts markedly (P P P < 0.01) increased the attention of the participants on 14<sup>th</sup> and 21<sup>st</sup> day with respect to PC group. The existing experiment proved that NF and TR tests undoubtedly revealed the attention enhancing activity of the Ginkgo biloba standardized extracts in healthy aged human participants. Consequently, the recommended newly emerging methods can be used for the assessment of attention in human and will create a miracle in the domain of neuroscience. 展开更多
关键词 NEUROPSYCHOPHARMACOLOGY Numeral Finding Test Typo Revealing Test ATTENTION Clinical Trial
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Innovation and Validation of Neuropsychopharmacological Testing Methods for the Assessment of Memory, Attention and Cognition in Human Participants
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作者 md. Sahab Uddin md. asaduzzaman 《Neuroscience & Medicine》 2016年第3期83-98,共16页
To meet the challenges of time searching for the new method for neuropsychopharmacology is still an ongoing process. In this experiment, we proposed and validated three neuropsychopharmacological testing methods, whic... To meet the challenges of time searching for the new method for neuropsychopharmacology is still an ongoing process. In this experiment, we proposed and validated three neuropsychopharmacological testing methods, which are Matching Capacity (MC), Dissimilarity Identification (DI) and Sense Making (SM) tests for the estimation of memory, attention and cognition respectively in healthy aged human participants. The purpose of this experiment was to generate more effective testing methods for the determination of memory, attention and cognition in human. To endorse proposed methods a randomized double blind placebo controlled clinical trial was conducted among healthy aged human participants between the period of December 2015 and February 2016. The experiment was conducted at Gazipur Sadar, Gazipur-1703, Dhaka, Bangladesh and the experiment center was the Department of Pharmacy, Southeast University, Dhaka-1213, Bangladesh. In this experiment, 60 healthy male participants between the age of 42 to 50 years were selected and divided into 4 groups with 15 participants in each by simple randomization process. Ginkgo biloba standardized extract’s capsule (Giloba?) and Bacopa monnieri standardized extract’s syrup (Monera?) were used as standard. Psyllium seed husk (i.e., seed of the Plantago ovata) was incorporated in the hard gelatin capsule shell (size 0) to prepare capsule and used as a placebo control of the capsule (PCC). Excipients of oral liquid preparation of vitamin were used to prepare syrup and used as a placebo control of the syrup (PCS). The treatment procedure for group 1 was Ginkgo biloba standardized extract’s capsule (120 mg/capsule), 3 times daily for 21 days;group 2 was treated with Bacopa monnieri standardized extract’s syrup (1.21 g/5 ml), 2 teaspoonfuls, 3 times daily for 21 days. Psyllium seed husk’s capsule and excipients of oral liquid vitamin’s syrup were used as placebo control (PC) for group 3 and group 4 and administered in the similar manner of group 1 and group 2, respectively. Administration of Ginkgo biloba (GB) and Bacopa monnieri (BM) standardized extracts for successive days significantly increased the memory, attention and cognition of the participants with respect to PC groups. In the MC test, treatment with GB extract markedly (P < 0.05) increased the memory of the participants on 21st day with respect to PCC group. On the other hand administration of BM extract remarkably (P < 0.01) increased the memory of the participants on 14th day in comparison with PCS group. For DI test, administration of GB extract noticeably (P < 0.01, P < 0.05) increased the attention of the participants on 14th and 21st day as compared to that of PCC group. Conversely BM extract significantly (P < 0.05, P < 0.01) increased the attention of the participants on 7th, 14th and 21st day with regard to PCS group. In the SM test, administration of GB extract noticeably (P < 0.05) increased the cognition of the participants on 7th and 21st day in comparison with PCC group. BM extract administration considerably (P < 0.01) increased cognition of the participants on 14th and 21st day related to the PCS groups. The experiment demonstrates that MC, DI and SM tests clearly exposed the memory, attention and cognition enhancing activity of the GB and BM standardized extracts in healthful aged human participants respectively. Therefore, the proposed method can be used for the fortitude of memory, attention and cognition in human and will generate a landmark in the sphere of neuroscience. 展开更多
关键词 NEUROPSYCHOPHARMACOLOGY Matching Capacity Test Dissimilarity Identification Test Sense Making Test MEMORY ATTENTION COGNITION Clinical Trial
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