Abstract The pandemic causing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has gl... more Abstract The pandemic causing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has globally infected more than 50 million people and ∼1.2 million have succumbed to this deadly pathogen. With the vaccine trials still in clinical phases, mitigation of Coronavirus Disease 2019 (COVID-19) relies primarily on robust virus detection methods and subsequent quarantine measures. Hence, the importance of rapid, affordable and reproducible virus testing will serve the need to identify and treat infected subjects in a timely manner. Based on the type of diagnostic assay, the primary targets are viral genome (RNA) and encoded proteins. Currently, COVID-19 detection is performed using various molecular platforms as well as serodiagnostics that exhibit approximately 71% sensitivity. These methods encounter several limitations including sensitivity, specificity, availability of skilled expertise and instrument access. Saliva-based COVID-19 diagnostics are emerging as a superior alternative to nasal swabs because of the ease of sample collection, no interaction during sampling, and high viral titers during early stages of infection. In addition, SARS-CoV-2 is detected in the environment as aerosols associated with suspended particulate matter. Designing virus detection strategies in diverse samples will allow timely monitoring of virus spread in humans and its persistence in the environment. With the passage of time, advanced technologies are overcoming limitations associated with detection. Enhanced sensitivity and specificity of next-generation diagnostics are key features enabling improved prognostic care. In this comprehensive review, we analyze currently adopted advanced technologies and their concurrent use in the development of diagnostics for SARS-CoV-2 detection.
New and Future Developments in Microbial Biotechnology and Bioengineering, 2020
Abstract Secondary metabolites from fungi have been purified, characterized, and further modified... more Abstract Secondary metabolites from fungi have been purified, characterized, and further modified in their moieties as anticancer agents. In the last few decades, fungal metabolites have become an important role in cancer drug discovery, resulting in a large number of therapeutic agents. Several studies have identified fungal metabolites as promising anticancer agents, and they have been investigated for their efficacy by using various types of cell lines, animal models, and clinical trials for cancer. This chapter discusses fungal metabolites and their efficacy as well as the toxicity of synthetic derivatives. Further, we discuss the efficacy of metabolites in animal models as well as clinical trials on fungal metabolites as anticancer agents.
Dengue virus (DV) infection has emerged as a major health problem in north India. Here, we report... more Dengue virus (DV) infection has emerged as a major health problem in north India. Here, we report the annual trend of dengue virus infection as seen in Lucknow, Uttar Pradesh, during 2008-2010. Blood samples from clinically suspected cases of dengue virus infection were collected and history was taken on structured clinical data sheet. All samples were tested for dengue IgM by antibody capture ELISA. Selected samples were tested by conventional RT-PCR for dengue virus RNA. Weather information was continuously recorded from website of world weather information service . There was a gradual increase in number of dengue fever cases with increased occurrence in 2010. Cases referred in January - December 2008 were 398 (54.5% anti DV IgM positive), in January - December 2009 were 599 (51.9% anti DV IgM positive) and in January - December 2010 were 1602 (64.9% anti DV IgM positive). Serotypes circulating in years 2008, 2009 and 2010 were DV-2 & DV-3, DV -1, 2 & 3 and DV-1 and DV-2 respecti...
Lactation is an important physiological process in dairy animals. During lactation, up to 85% of ... more Lactation is an important physiological process in dairy animals. During lactation, up to 85% of the body glucose is directed toward the mammary glands for milk synthesis. Studies related to lactation physiology are generally carried out on mammary biopsies, which may adversely affect animal health. In the present study, milk enriched MEC were used to study the expression pattern of GLUT1 and apoptotic genes (BAX and BCL2) across different stages of lactation in riverine buffalo in relation to milk yield. MEC were enriched from milk using cytokeratin-8 antibodies coated magnetic beads. Total RNA isolated from enriched MEC showed significant correlation (r(2) = 0.92 ± 0.02) with the milk yield at different stages of lactation. GLUT1 expression pattern correlated with the milk yield as highest GLUT1 expression (4.68 ± 0.79) was observed during peak-lactation (90 days post-parturition), whereas low GLUT1 expression (1.01 ± 0.1, 15 d; 0.71 ± 0.03, 30 d) was observed during early lactation. The BAX/BCL2 ratio was high (1.02 ± 0.2, 15 d; 0.94 ± 0.06, 30 d) during the early phase of lactation, indicating high rate of apoptosis, whereas low BAX/BCL2 ratio (0.25 ± 0.03, 60 d; 0.42 ± 0.04, 90 d) was observed during mid-lactation coinciding with the increase in RNA concentration and milk yield. Highest BAX/BCL2 ratio (1.41 ± 0.3, 120 d; 4.02 ± 0.6, 240 d) was observed during late lactation i.e., 240 days, which was also reflected as decline in milk yield and RNA concentration. Also, BAX/BCL2 ratio in milk enriched MEC was in accordance with RNA concentration in MEC and milk yield at different phases of lactation. Our study showed that expression pattern of genes under study (GLUT1, BAX, and BCL2) in milk enriched MEC correlated well with important physiological properties such as milk yield in buffalo.
Breast cancer (BC) is caused by epigenetic modifications and genetic heterogeneity and exhibits v... more Breast cancer (BC) is caused by epigenetic modifications and genetic heterogeneity and exhibits various histological feature. HER2+ (Human epidermal growth factor receptor 2) is a more aggressive type of breast cancer, diagnosis and prognosis are difficult for HER2+ BC. Anti-HER2+ inhibitors have been effectively used for patient treatment. High mortality rate is reported in HER2+ BC, due to availability of limited therapeutic options. Despite advances in systemic medications to treat metastatic breast cancer (MBC), HER2-positive MBC is still challenging for patients and treating clinicians. The clinical characteristics of the disease have changed after treatment with HER2-targeted therapy. Various types of Tyrosine kinase inhibitors (TKIs) have been developed to treat patients with HER2+ BC including afatinib, lapatinib, neratinib, tucatinib, and pyrotinib, have been developed as HER2-targeted therapies. The antibody-drug conjugates adotrastuzumab, emtansine, famtrastuzumab, and de...
Background: Antimicrobial resistance against pathogenic bacterial strains is the current problem ... more Background: Antimicrobial resistance against pathogenic bacterial strains is the current problem faced by the world. Medicinal plants are being focussed for new alternatives to routine antibiotics for novel therapeutic and antimicrobial approaches. Objective: In this present study, fennel extract from Foeniculum vulgare plant was investigated against methicillin-resistant Staphylococcus aureus (MRSA). Method: Ethanol extraction of fennel seeds was performed and minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and time-kill curve was studied to find antimicrobial activities. Biofilm eradication was estimated by crystal violet assay. Result: Antimicrobial study showed a MIC of 500 μg/ml and MBC of 1000 μg/ml for fennel extract. Sub-inhibitory concentrations (½ MIC and ¾ MIC) started to kill bacterial cells after the addition of fennel extract at mid-log phase of growth. Test phytochemical eradicated 38.7%, 62.2%, and 76.9% of MRSA biofilm from microtitre plate when added at a concentration of 250 μg/ml, 375 μg/ml and 500 μg/ml, respectively. Conclusion: This study showed different bactericidal and antibiofilm activity of fennel seed extract against MRSA. We suggested that the phytocompound could be a promising candidate and further investigation is needed to isolate the active component of the extract for the management of MRSA.
Increasing globalization, industrialization, population, and burning of fossil fuels have been ad... more Increasing globalization, industrialization, population, and burning of fossil fuels have been adversely affecting the environment for a long time. The consequences of the effects can be seen even within a short period of time in the current scenario. The air pollutants such as SO2, NO2, CO, and PM are the main contributors to the adverse health effects. Long-term and short-term exposure to pollutants may cause acute and chronic effects on the human body as they can enter deep into the organ and circulate in the bloodstream. The ultimate purpose of this review is to develop a quantitative perceptive of the existing state of facts about potential health effects concerning the dose-response relationship between exposure level of air pollutants and induced diseases. We have drawn around 376 scientific research papers on high-impact factors related to air pollution and health. These publications were analyzed with consideration of experimental methods, design, observations, and reports ...
Multiple variants of SARS-CoV-2 have emerged and are now prevalent at the global level. Currently... more Multiple variants of SARS-CoV-2 have emerged and are now prevalent at the global level. Currently designated variants of concern (VOCs) are B.1.1.7, B1.351, P.1, B.1.617.2 variants and B.1.1.529. Possible options for VOC are urgently required as they carry mutations in the virus spike protein that allow them to spread more easily and cause more serious illness. The primary targets for most therapeutic methods against SARS-CoV-2 are the S (Spike) protein and RBD (Receptor-Binding Domain), which alter the binding to ACE2 (Angiotensin-Converting Enzyme 2). The most popular of these strategies involves the use of drug development targeting the RBD and the NTD (N-terminal domain) of the spike protein and multiple epitopes of the S protein. Various types of mutations have been observed in the RBDs of B.1.1.7, B1.351, P. and B.1.620. The incidence of RBD mutations increases the binding affinity to the ACE2 receptor. The high binding affinity of RBD and ACE2 has provided a structural basis ...
Background: Garlic (Allium sativum) from the family Amaryllidaceae is widely used in culinary and... more Background: Garlic (Allium sativum) from the family Amaryllidaceae is widely used in culinary and is reported to have potential anticancer, anti-diabetic, antimicrobial, and cardioprotective activities. Allium sativum agglutinin (ASA) is a bulb-type lectin (BTL) domaincontaining lectin isolated from garlic and has been studied for its various biological functions. Previous studies have reported the anti-cancer effects of ASA on histiocytic lymphoma (U937), promyelocytic leukemia (HL60), and oral cancer (KB). Methods: In this study, we have purified and characterized ASA and evaluated it for its anticancer effects on other cancer cell lines. MTT assay and FACS analysis was done to corroborate the anticancer findings against cervical (HeLa) and lung cancer (A549) cell lines. Results: IC50 value of 37 μg/ml in HeLa and a weak activity (26.4 ± 1.9% cellular inhibition at 100μg/ml treatment) in A549 were found in the MTT assay. FACS analysis further corroborated these findings and showed...
Study was to investigates antimicrobial properties against clinical isolates of human pathogen, p... more Study was to investigates antimicrobial properties against clinical isolates of human pathogen, physiochemical and Phytochemical analysis of Acalypha indica. The aqueous, methanol, acetone and chloroform fractions of Acalypha indica were investigated for antimicrobial properties using pathogenic species of 18 bacteria and 8 fungi. Efficacy of antimicrobial properties were shown by all fraction. Significant antimicrobial properties were observed by disc diffusion assay and Microbroth dilution assay against tested pathogen such as Staphylococcus epidermidis, Staphylococcus epidermidis, Streptococcus pyrogens, Salmonella typhi, Bacillus cereus, Escherichia coli, P. aeurigonosa, S. aureus, A. fumigatus, A. flavus, A. niger, C. albicans and C. tropicals. The MICs by microbroth dilution assay was found to be ranged from 0.625 to 10.0 mg/ml in most of the fractions. Chloroform extract was found to be least active against the fungal pathogens. All the fractions of Acalypha indica were exhibited moderate to high activity against human pathogenic microbes; so that, identification of various extracts may be useful in novel antimicrobial compound having less toxicity with high sensitivity and specificity.
Frontiers in Cellular and Infection Microbiology, 2021
The emergence of SARS-CoV-2 variants may cause resistance at the immunity level against current v... more The emergence of SARS-CoV-2 variants may cause resistance at the immunity level against current vaccines. Some emergent new variants have increased transmissibility, infectivity, hospitalization, and mortality. Since the administration of the first SARS-CoV-2 vaccine to a human in March 2020, there is an ongoing global race against SARS-CoV-2 to control the current pandemic situation. Spike (S) glycoprotein of SARS-CoV-2 is the main target for current vaccine development, which can neutralize the infection. Companies and academic institutions have developed vaccines based on the S glycoprotein, as well as its antigenic domains and epitopes, which have been proven effective in generating neutralizing antibodies. The effectiveness of SARS-CoV-2 vaccines and other therapeutics developments are limited by the new emergent variants at the global level. We have discussed the emergent variants of SARS-CoV-2 on the efficacy of developed vaccines. Presently, most of the vaccines have been tr...
Evidence-Based Complementary and Alternative Medicine, 2022
The incidence of obesity and over bodyweight is emerging as a major health concern. Obesity is a ... more The incidence of obesity and over bodyweight is emerging as a major health concern. Obesity is a complex metabolic disease with multiple pathophysiological clinical conditions as comorbidities are associated with obesity such as diabetes, hypertension, cardiovascular disorders, sleep apnea, osteoarthritis, some cancers, and inflammation-based clinical conditions. In obese individuals, adipocyte cells increased the expression of leptin, angiotensin, adipocytokines, plasminogen activators, and C-reactive protein. Currently, options for treatment and lifestyle behaviors interventions are limited, and keeping a healthy lifestyle is challenging. Various types of phytochemicals have been investigated for antiobesity potential. Here, we discuss pathophysiology and signaling pathways in obesity, epigenetic regulations, regulatory mechanism, functional ingredients in natural antiobesity products, and therapeutic application of phytochemicals in obesity.
South Asian journal of experimental biology, Feb 4, 2015
Hepatitis B virus (HBV) and hepatitis C virus (HCV) infection substantially cause series of liver... more Hepatitis B virus (HBV) and hepatitis C virus (HCV) infection substantially cause series of liver diseases worldwide. Because these two viruses share the modes of transmission, HBV HCV co-infection is common with approximately 7-20 million people affected globally. Hemodialysis individuals are at risk of HBV and HCV infections. The prevalence rates of coinfection with HBV and HCV in Hemodialysis patients have been variable worldwide depending on the geographic regions, and the type of exposure. This study aimed to exam-ine HBV and HCV coinfection and determine the shared and significant fac-tors in the coinfection in Hemodialysis patients. This descriptive, cross-sectional study was carried out on 237 Hemodialysis patients including 153 males and 84 females in Lucknow, Uttar Pradesh, to survey coinfection with HBV and HCV using ELISA. The retrospective demographic data of the sub-jects was collected and the patient’s serums were analyzed by ELISA. The collected data was analyzed with Instat (Graphpad) software. Fisher's exact test with 5% error intervals was used to measure the correlation of variables and infection rates. The results of the study indicated that the prevalence of hepatitis B & C virus in hemodialysis patients was 9.70% (n=23), out of which 1 (0.42%) was suffering with HBV & HCV co-infection while 6 were only HBV positive and 16 were only HCV positive. There is very low prevalence of Hep-atitis C Virus and Hepatitis B Virus coinfection in hemodialysis patients in this region.
Aspergillus niger commonly found in air and individuals exposed by its spore, causes otomycosis i... more Aspergillus niger commonly found in air and individuals exposed by its spore, causes otomycosis infections, which can cause temporary hearing loss and leads to damage of the ear canal and tympanic membrane. Protein profile of A. niger were observed in 48 h cultured by using 2DPAGE (2-Dimensional acrylamide gel electrophoresis) and MS-TOF (Mass spectroscopy -time of flight) analysis. A few 2D-PAGE protein spots were subjected to detection secondary metabolites and provides strong evidence for the analysis of multiple pathways and help in early diagnosis and treatment of the infection.
Brain function activity is regulated by several mechanisms of genetic and epigenetic factors such... more Brain function activity is regulated by several mechanisms of genetic and epigenetic factors such as histone modelling, DNA methylation, and non-coding RNA. Alterations in these regulatory mechanisms affect the normal development of neurons that causes Neuropsychiatric Disorders (ND). However, it is required to analyse the functional significance of neuropsychiatric disorders associated with a molecular mechanism to bring about therapeutic advances in early diagnosis and treatment of the patients. The CRISPR/Cas 9 (Clustered Regularly Interspaced Short Palindromic Repeats) genome editing tools have revolutionized multiple genome and epigenome manipulation targets the same time. This review discussed the possibilities of using CRISPR/Cas 9 tools during molecular mechanism in the ND as a therapeutic approach to overcome ND that is caused due to genetic and epigenetic abnormalities.
Abstract The pandemic causing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has gl... more Abstract The pandemic causing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has globally infected more than 50 million people and ∼1.2 million have succumbed to this deadly pathogen. With the vaccine trials still in clinical phases, mitigation of Coronavirus Disease 2019 (COVID-19) relies primarily on robust virus detection methods and subsequent quarantine measures. Hence, the importance of rapid, affordable and reproducible virus testing will serve the need to identify and treat infected subjects in a timely manner. Based on the type of diagnostic assay, the primary targets are viral genome (RNA) and encoded proteins. Currently, COVID-19 detection is performed using various molecular platforms as well as serodiagnostics that exhibit approximately 71% sensitivity. These methods encounter several limitations including sensitivity, specificity, availability of skilled expertise and instrument access. Saliva-based COVID-19 diagnostics are emerging as a superior alternative to nasal swabs because of the ease of sample collection, no interaction during sampling, and high viral titers during early stages of infection. In addition, SARS-CoV-2 is detected in the environment as aerosols associated with suspended particulate matter. Designing virus detection strategies in diverse samples will allow timely monitoring of virus spread in humans and its persistence in the environment. With the passage of time, advanced technologies are overcoming limitations associated with detection. Enhanced sensitivity and specificity of next-generation diagnostics are key features enabling improved prognostic care. In this comprehensive review, we analyze currently adopted advanced technologies and their concurrent use in the development of diagnostics for SARS-CoV-2 detection.
New and Future Developments in Microbial Biotechnology and Bioengineering, 2020
Abstract Secondary metabolites from fungi have been purified, characterized, and further modified... more Abstract Secondary metabolites from fungi have been purified, characterized, and further modified in their moieties as anticancer agents. In the last few decades, fungal metabolites have become an important role in cancer drug discovery, resulting in a large number of therapeutic agents. Several studies have identified fungal metabolites as promising anticancer agents, and they have been investigated for their efficacy by using various types of cell lines, animal models, and clinical trials for cancer. This chapter discusses fungal metabolites and their efficacy as well as the toxicity of synthetic derivatives. Further, we discuss the efficacy of metabolites in animal models as well as clinical trials on fungal metabolites as anticancer agents.
Dengue virus (DV) infection has emerged as a major health problem in north India. Here, we report... more Dengue virus (DV) infection has emerged as a major health problem in north India. Here, we report the annual trend of dengue virus infection as seen in Lucknow, Uttar Pradesh, during 2008-2010. Blood samples from clinically suspected cases of dengue virus infection were collected and history was taken on structured clinical data sheet. All samples were tested for dengue IgM by antibody capture ELISA. Selected samples were tested by conventional RT-PCR for dengue virus RNA. Weather information was continuously recorded from website of world weather information service . There was a gradual increase in number of dengue fever cases with increased occurrence in 2010. Cases referred in January - December 2008 were 398 (54.5% anti DV IgM positive), in January - December 2009 were 599 (51.9% anti DV IgM positive) and in January - December 2010 were 1602 (64.9% anti DV IgM positive). Serotypes circulating in years 2008, 2009 and 2010 were DV-2 & DV-3, DV -1, 2 & 3 and DV-1 and DV-2 respecti...
Lactation is an important physiological process in dairy animals. During lactation, up to 85% of ... more Lactation is an important physiological process in dairy animals. During lactation, up to 85% of the body glucose is directed toward the mammary glands for milk synthesis. Studies related to lactation physiology are generally carried out on mammary biopsies, which may adversely affect animal health. In the present study, milk enriched MEC were used to study the expression pattern of GLUT1 and apoptotic genes (BAX and BCL2) across different stages of lactation in riverine buffalo in relation to milk yield. MEC were enriched from milk using cytokeratin-8 antibodies coated magnetic beads. Total RNA isolated from enriched MEC showed significant correlation (r(2) = 0.92 ± 0.02) with the milk yield at different stages of lactation. GLUT1 expression pattern correlated with the milk yield as highest GLUT1 expression (4.68 ± 0.79) was observed during peak-lactation (90 days post-parturition), whereas low GLUT1 expression (1.01 ± 0.1, 15 d; 0.71 ± 0.03, 30 d) was observed during early lactation. The BAX/BCL2 ratio was high (1.02 ± 0.2, 15 d; 0.94 ± 0.06, 30 d) during the early phase of lactation, indicating high rate of apoptosis, whereas low BAX/BCL2 ratio (0.25 ± 0.03, 60 d; 0.42 ± 0.04, 90 d) was observed during mid-lactation coinciding with the increase in RNA concentration and milk yield. Highest BAX/BCL2 ratio (1.41 ± 0.3, 120 d; 4.02 ± 0.6, 240 d) was observed during late lactation i.e., 240 days, which was also reflected as decline in milk yield and RNA concentration. Also, BAX/BCL2 ratio in milk enriched MEC was in accordance with RNA concentration in MEC and milk yield at different phases of lactation. Our study showed that expression pattern of genes under study (GLUT1, BAX, and BCL2) in milk enriched MEC correlated well with important physiological properties such as milk yield in buffalo.
Breast cancer (BC) is caused by epigenetic modifications and genetic heterogeneity and exhibits v... more Breast cancer (BC) is caused by epigenetic modifications and genetic heterogeneity and exhibits various histological feature. HER2+ (Human epidermal growth factor receptor 2) is a more aggressive type of breast cancer, diagnosis and prognosis are difficult for HER2+ BC. Anti-HER2+ inhibitors have been effectively used for patient treatment. High mortality rate is reported in HER2+ BC, due to availability of limited therapeutic options. Despite advances in systemic medications to treat metastatic breast cancer (MBC), HER2-positive MBC is still challenging for patients and treating clinicians. The clinical characteristics of the disease have changed after treatment with HER2-targeted therapy. Various types of Tyrosine kinase inhibitors (TKIs) have been developed to treat patients with HER2+ BC including afatinib, lapatinib, neratinib, tucatinib, and pyrotinib, have been developed as HER2-targeted therapies. The antibody-drug conjugates adotrastuzumab, emtansine, famtrastuzumab, and de...
Background: Antimicrobial resistance against pathogenic bacterial strains is the current problem ... more Background: Antimicrobial resistance against pathogenic bacterial strains is the current problem faced by the world. Medicinal plants are being focussed for new alternatives to routine antibiotics for novel therapeutic and antimicrobial approaches. Objective: In this present study, fennel extract from Foeniculum vulgare plant was investigated against methicillin-resistant Staphylococcus aureus (MRSA). Method: Ethanol extraction of fennel seeds was performed and minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and time-kill curve was studied to find antimicrobial activities. Biofilm eradication was estimated by crystal violet assay. Result: Antimicrobial study showed a MIC of 500 μg/ml and MBC of 1000 μg/ml for fennel extract. Sub-inhibitory concentrations (½ MIC and ¾ MIC) started to kill bacterial cells after the addition of fennel extract at mid-log phase of growth. Test phytochemical eradicated 38.7%, 62.2%, and 76.9% of MRSA biofilm from microtitre plate when added at a concentration of 250 μg/ml, 375 μg/ml and 500 μg/ml, respectively. Conclusion: This study showed different bactericidal and antibiofilm activity of fennel seed extract against MRSA. We suggested that the phytocompound could be a promising candidate and further investigation is needed to isolate the active component of the extract for the management of MRSA.
Increasing globalization, industrialization, population, and burning of fossil fuels have been ad... more Increasing globalization, industrialization, population, and burning of fossil fuels have been adversely affecting the environment for a long time. The consequences of the effects can be seen even within a short period of time in the current scenario. The air pollutants such as SO2, NO2, CO, and PM are the main contributors to the adverse health effects. Long-term and short-term exposure to pollutants may cause acute and chronic effects on the human body as they can enter deep into the organ and circulate in the bloodstream. The ultimate purpose of this review is to develop a quantitative perceptive of the existing state of facts about potential health effects concerning the dose-response relationship between exposure level of air pollutants and induced diseases. We have drawn around 376 scientific research papers on high-impact factors related to air pollution and health. These publications were analyzed with consideration of experimental methods, design, observations, and reports ...
Multiple variants of SARS-CoV-2 have emerged and are now prevalent at the global level. Currently... more Multiple variants of SARS-CoV-2 have emerged and are now prevalent at the global level. Currently designated variants of concern (VOCs) are B.1.1.7, B1.351, P.1, B.1.617.2 variants and B.1.1.529. Possible options for VOC are urgently required as they carry mutations in the virus spike protein that allow them to spread more easily and cause more serious illness. The primary targets for most therapeutic methods against SARS-CoV-2 are the S (Spike) protein and RBD (Receptor-Binding Domain), which alter the binding to ACE2 (Angiotensin-Converting Enzyme 2). The most popular of these strategies involves the use of drug development targeting the RBD and the NTD (N-terminal domain) of the spike protein and multiple epitopes of the S protein. Various types of mutations have been observed in the RBDs of B.1.1.7, B1.351, P. and B.1.620. The incidence of RBD mutations increases the binding affinity to the ACE2 receptor. The high binding affinity of RBD and ACE2 has provided a structural basis ...
Background: Garlic (Allium sativum) from the family Amaryllidaceae is widely used in culinary and... more Background: Garlic (Allium sativum) from the family Amaryllidaceae is widely used in culinary and is reported to have potential anticancer, anti-diabetic, antimicrobial, and cardioprotective activities. Allium sativum agglutinin (ASA) is a bulb-type lectin (BTL) domaincontaining lectin isolated from garlic and has been studied for its various biological functions. Previous studies have reported the anti-cancer effects of ASA on histiocytic lymphoma (U937), promyelocytic leukemia (HL60), and oral cancer (KB). Methods: In this study, we have purified and characterized ASA and evaluated it for its anticancer effects on other cancer cell lines. MTT assay and FACS analysis was done to corroborate the anticancer findings against cervical (HeLa) and lung cancer (A549) cell lines. Results: IC50 value of 37 μg/ml in HeLa and a weak activity (26.4 ± 1.9% cellular inhibition at 100μg/ml treatment) in A549 were found in the MTT assay. FACS analysis further corroborated these findings and showed...
Study was to investigates antimicrobial properties against clinical isolates of human pathogen, p... more Study was to investigates antimicrobial properties against clinical isolates of human pathogen, physiochemical and Phytochemical analysis of Acalypha indica. The aqueous, methanol, acetone and chloroform fractions of Acalypha indica were investigated for antimicrobial properties using pathogenic species of 18 bacteria and 8 fungi. Efficacy of antimicrobial properties were shown by all fraction. Significant antimicrobial properties were observed by disc diffusion assay and Microbroth dilution assay against tested pathogen such as Staphylococcus epidermidis, Staphylococcus epidermidis, Streptococcus pyrogens, Salmonella typhi, Bacillus cereus, Escherichia coli, P. aeurigonosa, S. aureus, A. fumigatus, A. flavus, A. niger, C. albicans and C. tropicals. The MICs by microbroth dilution assay was found to be ranged from 0.625 to 10.0 mg/ml in most of the fractions. Chloroform extract was found to be least active against the fungal pathogens. All the fractions of Acalypha indica were exhibited moderate to high activity against human pathogenic microbes; so that, identification of various extracts may be useful in novel antimicrobial compound having less toxicity with high sensitivity and specificity.
Frontiers in Cellular and Infection Microbiology, 2021
The emergence of SARS-CoV-2 variants may cause resistance at the immunity level against current v... more The emergence of SARS-CoV-2 variants may cause resistance at the immunity level against current vaccines. Some emergent new variants have increased transmissibility, infectivity, hospitalization, and mortality. Since the administration of the first SARS-CoV-2 vaccine to a human in March 2020, there is an ongoing global race against SARS-CoV-2 to control the current pandemic situation. Spike (S) glycoprotein of SARS-CoV-2 is the main target for current vaccine development, which can neutralize the infection. Companies and academic institutions have developed vaccines based on the S glycoprotein, as well as its antigenic domains and epitopes, which have been proven effective in generating neutralizing antibodies. The effectiveness of SARS-CoV-2 vaccines and other therapeutics developments are limited by the new emergent variants at the global level. We have discussed the emergent variants of SARS-CoV-2 on the efficacy of developed vaccines. Presently, most of the vaccines have been tr...
Evidence-Based Complementary and Alternative Medicine, 2022
The incidence of obesity and over bodyweight is emerging as a major health concern. Obesity is a ... more The incidence of obesity and over bodyweight is emerging as a major health concern. Obesity is a complex metabolic disease with multiple pathophysiological clinical conditions as comorbidities are associated with obesity such as diabetes, hypertension, cardiovascular disorders, sleep apnea, osteoarthritis, some cancers, and inflammation-based clinical conditions. In obese individuals, adipocyte cells increased the expression of leptin, angiotensin, adipocytokines, plasminogen activators, and C-reactive protein. Currently, options for treatment and lifestyle behaviors interventions are limited, and keeping a healthy lifestyle is challenging. Various types of phytochemicals have been investigated for antiobesity potential. Here, we discuss pathophysiology and signaling pathways in obesity, epigenetic regulations, regulatory mechanism, functional ingredients in natural antiobesity products, and therapeutic application of phytochemicals in obesity.
South Asian journal of experimental biology, Feb 4, 2015
Hepatitis B virus (HBV) and hepatitis C virus (HCV) infection substantially cause series of liver... more Hepatitis B virus (HBV) and hepatitis C virus (HCV) infection substantially cause series of liver diseases worldwide. Because these two viruses share the modes of transmission, HBV HCV co-infection is common with approximately 7-20 million people affected globally. Hemodialysis individuals are at risk of HBV and HCV infections. The prevalence rates of coinfection with HBV and HCV in Hemodialysis patients have been variable worldwide depending on the geographic regions, and the type of exposure. This study aimed to exam-ine HBV and HCV coinfection and determine the shared and significant fac-tors in the coinfection in Hemodialysis patients. This descriptive, cross-sectional study was carried out on 237 Hemodialysis patients including 153 males and 84 females in Lucknow, Uttar Pradesh, to survey coinfection with HBV and HCV using ELISA. The retrospective demographic data of the sub-jects was collected and the patient’s serums were analyzed by ELISA. The collected data was analyzed with Instat (Graphpad) software. Fisher's exact test with 5% error intervals was used to measure the correlation of variables and infection rates. The results of the study indicated that the prevalence of hepatitis B & C virus in hemodialysis patients was 9.70% (n=23), out of which 1 (0.42%) was suffering with HBV & HCV co-infection while 6 were only HBV positive and 16 were only HCV positive. There is very low prevalence of Hep-atitis C Virus and Hepatitis B Virus coinfection in hemodialysis patients in this region.
Aspergillus niger commonly found in air and individuals exposed by its spore, causes otomycosis i... more Aspergillus niger commonly found in air and individuals exposed by its spore, causes otomycosis infections, which can cause temporary hearing loss and leads to damage of the ear canal and tympanic membrane. Protein profile of A. niger were observed in 48 h cultured by using 2DPAGE (2-Dimensional acrylamide gel electrophoresis) and MS-TOF (Mass spectroscopy -time of flight) analysis. A few 2D-PAGE protein spots were subjected to detection secondary metabolites and provides strong evidence for the analysis of multiple pathways and help in early diagnosis and treatment of the infection.
Brain function activity is regulated by several mechanisms of genetic and epigenetic factors such... more Brain function activity is regulated by several mechanisms of genetic and epigenetic factors such as histone modelling, DNA methylation, and non-coding RNA. Alterations in these regulatory mechanisms affect the normal development of neurons that causes Neuropsychiatric Disorders (ND). However, it is required to analyse the functional significance of neuropsychiatric disorders associated with a molecular mechanism to bring about therapeutic advances in early diagnosis and treatment of the patients. The CRISPR/Cas 9 (Clustered Regularly Interspaced Short Palindromic Repeats) genome editing tools have revolutionized multiple genome and epigenome manipulation targets the same time. This review discussed the possibilities of using CRISPR/Cas 9 tools during molecular mechanism in the ND as a therapeutic approach to overcome ND that is caused due to genetic and epigenetic abnormalities.
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