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  1. Article ; Online: Optimized culture conditions facilitate the estrone biodegradation ability and laccase activity of Spirulina CPCC-695

    Sami, Neha / Fatma, Tasneem

    Biodegradation. 2023 Feb., v. 34, no. 1 p.43-51

    2023  

    Abstract: Endocrine disrupting compounds (EDCs) are emerging contaminants that persist and contaminate the environment. They mimic hormones, block hormones, or modulate their synthesis, metabolism, transport, and action, affecting living organisms and their ... ...

    Abstract Endocrine disrupting compounds (EDCs) are emerging contaminants that persist and contaminate the environment. They mimic hormones, block hormones, or modulate their synthesis, metabolism, transport, and action, affecting living organisms and their progeny. Steroid hormones from exogenous sources like water bodies are important EDCs. Their biodegradation is an urgent global need. The present study is a preliminary work to maximize the estrone degradation potential of Spirulina CPCC-695 and study the effect of optimized conditions on its laccase activity. It was observed that the exponential phase culture at pH 10.0, 30 ℃, and 200 rpm of agitation speed resulted in the maximum growth, estrone degradation efficiency (93.12%), and highest laccase activity (74%) of Spirulina CPCC-695.
    Keywords Spirulina ; agitation ; biodegradation ; estrone ; laccase ; metabolism ; pH ; progeny
    Language English
    Dates of publication 2023-02
    Size p. 43-51.
    Publishing place Springer Netherlands
    Document type Article ; Online
    ZDB-ID 1056014-2
    ISSN 1572-9729 ; 0923-9820
    ISSN (online) 1572-9729
    ISSN 0923-9820
    DOI 10.1007/s10532-022-10005-2
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Optimized culture conditions facilitate the estrone biodegradation ability and laccase activity of Spirulina CPCC-695.

    Sami, Neha / Fatma, Tasneem

    Biodegradation

    2022  Volume 34, Issue 1, Page(s) 43–51

    Abstract: Endocrine disrupting compounds (EDCs) are emerging contaminants that persist and contaminate the environment. They mimic hormones, block hormones, or modulate their synthesis, metabolism, transport, and action, affecting living organisms and their ... ...

    Abstract Endocrine disrupting compounds (EDCs) are emerging contaminants that persist and contaminate the environment. They mimic hormones, block hormones, or modulate their synthesis, metabolism, transport, and action, affecting living organisms and their progeny. Steroid hormones from exogenous sources like water bodies are important EDCs. Their biodegradation is an urgent global need. The present study is a preliminary work to maximize the estrone degradation potential of Spirulina CPCC-695 and study the effect of optimized conditions on its laccase activity. It was observed that the exponential phase culture at pH 10.0, 30 ℃, and 200 rpm of agitation speed resulted in the maximum growth, estrone degradation efficiency (93.12%), and highest laccase activity (74%) of Spirulina CPCC-695.
    MeSH term(s) Estrone/analysis ; Laccase/chemistry ; Laccase/metabolism ; Spirulina/metabolism ; Biodegradation, Environmental ; Endocrine Disruptors/metabolism ; Water Pollutants, Chemical/analysis
    Chemical Substances Estrone (2DI9HA706A) ; Laccase (EC 1.10.3.2) ; Endocrine Disruptors ; Water Pollutants, Chemical
    Language English
    Publishing date 2022-11-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1056014-2
    ISSN 1572-9729 ; 0923-9820
    ISSN (online) 1572-9729
    ISSN 0923-9820
    DOI 10.1007/s10532-022-10005-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Biochemical Characterization of Laccase from Spirulina CPCC-695 and Their Role in Estrone Degradation.

    Sami, Neha / Afzal, Bushra / Yasin, Durdana / Fatma, Tasneem

    The protein journal

    2023  Volume 43, Issue 1, Page(s) 115–128

    Abstract: The addition of exogenous endocrine disrupting compounds (EDCs) like estrone, in the food chain through the aquatic system, disrupts steroid biosynthesis and metabolism by altering either the genomic or non-genomic pathway that eventually results in ... ...

    Abstract The addition of exogenous endocrine disrupting compounds (EDCs) like estrone, in the food chain through the aquatic system, disrupts steroid biosynthesis and metabolism by altering either the genomic or non-genomic pathway that eventually results in various diseases. Thus, bioremediation of these compounds is urgently required to prevent their addition and persistence in the environment. Enzymatic degradation has proven to be a knight in shining armour as it is safe and generates no toxic products. The multicopper oxidases (E.C. 1.10.3.2 benzenediol: oxygen oxidoreductase), laccase with the potential to degrade both phenolic and non-phenolic substrates has recently gained attention. In this study, the laccase was purified, characterized, and used to study estrone degradation. The culture filtrate (crude laccase) was concentrated and precipitated using cold-acetone and dialyzed against tris buffer (50 mM) giving a four-fold partially purified form, with 45.56% yield and 204.14 U/mg as specific activity and a single peak at 250-300 nm. The partially purified laccase was approximately 80 kDa as estimated by SDS-PAGE preferred ABTS as substrate. Both crude and partially purified laccase showed maximum activity at pH 3.0, 40 °C, and 4 mM ABTS. Kinetic constants (Km, Vmax) of crude and partially purified laccase were found to be 0.83 mM; 494.31 mM/min, and 0.58 mM; 480.54 mM/min respectively. Iron sulphate and sodium azide inhibited laccase maximally. Crude and partially purified laccase degradation efficiency was 87.55 and 91.35% respectively. Spirulina CPCC-695 laccase with efficient estrone degradation ability renders them promising candidates for EDCs bioremediation.
    MeSH term(s) Laccase/chemistry ; Laccase/genetics ; Laccase/metabolism ; Estrone ; Spirulina/metabolism ; Temperature ; Hydrogen-Ion Concentration ; Sulfonic Acids ; Benzothiazoles
    Chemical Substances Laccase (EC 1.10.3.2) ; 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid (28752-68-3) ; Estrone (2DI9HA706A) ; Sulfonic Acids ; Benzothiazoles
    Language English
    Publishing date 2023-12-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2143071-8
    ISSN 1875-8355 ; 1572-3887
    ISSN (online) 1875-8355
    ISSN 1572-3887
    DOI 10.1007/s10930-023-10169-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Biochemical Characterization of Novel Phenylalanine Ammonia-Lyase from Spirulina CPCC-695.

    Ahmad, Rakhshan / Sami, Neha / Perveen, Gulnar / Fatma, Tasneem

    The protein journal

    2022  Volume 41, Issue 3, Page(s) 414–423

    Abstract: Phenylalanine ammonia lyase (PAL) catalyzes the deamination of phenylalanine to cinnamic acid and ammonia. It plays a crucial role in the formation of secondary metabolites through the phenylpropanoid pathway. Recently there has been growing interest in ... ...

    Abstract Phenylalanine ammonia lyase (PAL) catalyzes the deamination of phenylalanine to cinnamic acid and ammonia. It plays a crucial role in the formation of secondary metabolites through the phenylpropanoid pathway. Recently there has been growing interest in exploring the biochemical properties of PAL for its clinical and commercial applications. PAL as a key component has been used in metabolic engineering and synthetic biology. Due to its high substrate specificity and catalytic efficacy, PAL has opened a new area of interest in the biomedical field. PAL has been frequently used in the enzyme replacement therapy of phenylketonuria, cancer treatment and microbial production of l-phe the precursor of noncalorific sweetener aspartame (Methyl L-α-aspartyl-l-phenylalaninate), antimicrobial and health supplements. PAL occurs in few plants, fungi, bacteria, and cyanobacteria. The present investigation is a preliminary study in which an attempt has been made for the isolation, partial purification, and biochemical characterization of PAL (crude and partially purified) from Spirulina CPCC-695. Partially purified PAL exhibited higher enzymatic activity and protein content than the crude enzyme. Molecular weight of the crude and partially purified PAL was ~ 66 kDa. The optimum temperature and pH for PAL activity was observed as 30 ℃ and 8.0 respectively. l-Phe was the most preferred substrate (100 mM) whereas gallic acid showed maximum inhibition of PAL activity. Enzyme kinetics suggested good catalytic efficacy of the PAL enzyme and affinity towards substrate. Both the enzyme (crude and partially purified) showed less than 5% haemolysis suggesting the biocompatible nature of PAL.
    MeSH term(s) Humans ; Phenylalanine/metabolism ; Phenylalanine/therapeutic use ; Phenylalanine Ammonia-Lyase/chemistry ; Phenylalanine Ammonia-Lyase/metabolism ; Phenylketonurias/drug therapy ; Spirulina ; Substrate Specificity
    Chemical Substances Phenylalanine (47E5O17Y3R) ; Phenylalanine Ammonia-Lyase (EC 4.3.1.24)
    Language English
    Publishing date 2022-06-17
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2143071-8
    ISSN 1875-8355 ; 1572-3887
    ISSN (online) 1875-8355
    ISSN 1572-3887
    DOI 10.1007/s10930-022-10063-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Translation and validation of oral health impact profile-49 questionnaire for use in hindi-speaking population.

    Kwatra, Neha / Sudan, Jasneet / Sogi, Girish M / Ahmed, Sami

    Indian journal of dental research : official publication of Indian Society for Dental Research

    2023  Volume 34, Issue 2, Page(s) 124–129

    Abstract: Context: The subjective dimension of oral health has become a focus area for healthcare researchers in last decades. There has been an increase in scales measuring the self-perceived oral health outcomes. Oral health impact profile (OHIP-49) was ... ...

    Abstract Context: The subjective dimension of oral health has become a focus area for healthcare researchers in last decades. There has been an increase in scales measuring the self-perceived oral health outcomes. Oral health impact profile (OHIP-49) was developed in English, and for its use in Hindi-speaking population, translation and validation along with cross cultural adaptation are needed.
    Aim: To translate and validate OHIP-49 questionnaire for use in Hindi-speaking population.
    Settings and design: Translation and validation of OHIP-49 questionnaire were carried out in a cross-sectional study conducted from January 2017 to October 2017 at a tertiary care centre.
    Methods and material: A systematic random sample of 303 subjects reporting with orofacial pain was included in the study. The original English version OHIP-49 was initially translated and cross-culturally adapted to Hindi following WHO guidelines and then, subsequently validated.
    Statistical analysis used: The OHIP subscale measures were computed using Thurston's method. Internal consistency of the translated questionnaire was quantified in terms of Cronbach's alpha and average inter-item correlations for each domain.
    Results: The standardized overall Cronbach's alpha value derived from the correlation matrix was 0.88 (excellent). The average inter-item correlation coefficient was within the range of 0.3-0.5 for all the domains except for handicap domain.
    Conclusions: The OHIP-46-H questionnaire has an acceptable validity and reliability for use in Hindi-speaking population. It provides a possibility to narrate in details how frequently oral diseases affect the quality of life.
    MeSH term(s) Humans ; Quality of Life ; Oral Health ; Reproducibility of Results ; Cross-Sectional Studies ; Surveys and Questionnaires
    Language English
    Publishing date 2023-10-13
    Publishing country India
    Document type Journal Article
    ZDB-ID 1354886-4
    ISSN 1998-3603 ; 0970-9290
    ISSN (online) 1998-3603
    ISSN 0970-9290
    DOI 10.4103/ijdr.IJDR_538_19
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Amyloid-induced neurodegeneration: A comprehensive review through aggregomics perception of proteins in health and pathology.

    Bashir, Sania / Aiman, Ayesha / Shahid, Mohammad / Chaudhary, Anis Ahmad / Sami, Neha / Basir, Seemi Farhat / Hassan, Imtaiyaz / Islam, Asimul

    Ageing research reviews

    2024  Volume 96, Page(s) 102276

    Abstract: Amyloidosis of protein caused by fibrillation and aggregation are some of the most exciting new edges not only in protein sciences but also in molecular medicines. The present review discusses recent advancements in the field of neurodegenerative ... ...

    Abstract Amyloidosis of protein caused by fibrillation and aggregation are some of the most exciting new edges not only in protein sciences but also in molecular medicines. The present review discusses recent advancements in the field of neurodegenerative diseases and therapeutic applications with ongoing clinical trials, featuring new areas of protein misfolding resulting in aggregation. The endogenous accretion of protein fibrils having fibrillar morphology symbolizes the beginning of neuro-disorders. Prognostic amyloidosis is prominent in numerous degenerative infections such as Alzheimer's and Parkinson's disease, Amyotrophic lateral sclerosis (ALS), etc. However, the molecular basis determining the intracellular or extracellular evidence of aggregates, playing a significant role as a causative factor in neurodegeneration is still unclear. Structural conversions and protein self-assembly resulting in the formation of amyloid oligomers and fibrils are important events in the pathophysiology of the disease. This comprehensive review sheds light on the evolving landscape of potential treatment modalities, highlighting the ongoing clinical trials and the potential socio-economic impact of novel therapeutic interventions in the realm of neurodegenerative diseases. Furthermore, many drugs are undergoing different levels of clinical trials that would certainly help in treating these disorders and will surely improve the socio-impact of human life.
    MeSH term(s) Humans ; Amyloid/metabolism ; Amyloidosis/metabolism ; Neurodegenerative Diseases/metabolism ; Parkinson Disease/metabolism ; Amyloidogenic Proteins ; Perception
    Chemical Substances Amyloid ; Amyloidogenic Proteins
    Language English
    Publishing date 2024-03-16
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2075672-0
    ISSN 1872-9649 ; 1568-1637
    ISSN (online) 1872-9649
    ISSN 1568-1637
    DOI 10.1016/j.arr.2024.102276
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Assessing Human-Human Kinematics for the Implementation of Robot-Assisted Physical Therapy in Humanoids: A Pilot Study.

    Nertinger, Simone / Das, Neha / Satoshi, Endo / Naceri, Abdeldjallil / Hirche, Sandra / Haddadin, Sami

    IEEE ... International Conference on Rehabilitation Robotics : [proceedings

    2023  Volume 2023, Page(s) 1–6

    Abstract: The development of humanoids with bimanual manipulator arms may facilitate assistive robots to perform physical therapy with older adults living at home. As we assume the human-human interaction to be the gold standard of physical therapy, we propose a ... ...

    Abstract The development of humanoids with bimanual manipulator arms may facilitate assistive robots to perform physical therapy with older adults living at home. As we assume the human-human interaction to be the gold standard of physical therapy, we propose a kinematics analysis to derive guidelines for implementing physical therapy assisted by humanoids. Therefore, a pilot study was carried out involving three physical therapists and two participants acting as exemplary patients. The study analyzes the therapists' movement strategy, including the position and orientation of the therapists' bodies in relation to the participants and the placement of the therapists' hands on the upper limb segment of the participants, as well as the inter- and intravariability during the performance of a ROM (range of motion) assessment. The results demonstrate that while physical therapists exhibit variation in their interaction strategies, they still achieve a consistently low level of variability in their manipulation space.
    MeSH term(s) Humans ; Aged ; Robotics/methods ; Pilot Projects ; Biomechanical Phenomena ; Upper Extremity ; Physical Therapy Modalities
    Language English
    Publishing date 2023-11-08
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1945-7901
    ISSN (online) 1945-7901
    DOI 10.1109/ICORR58425.2023.10304778
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Exploring algae and cyanobacteria as a promising natural source of antiviral drug against SARS-CoV-2

    Neha Sami / Rakhshan Ahmad / Tasneem Fatma

    Biomedical Journal, Vol 44, Iss 1, Pp 54-

    2021  Volume 62

    Abstract: The present outburst of coronavirus-associated (SARS-CoV-2) acute respiratory disease coronavirus disease 19 (COVID-19) in December 2019 in Wuhan, China is the third recognised spill over due to the zoonotic transmission. SARS-CoVs are about 29.7 kb ... ...

    Abstract The present outburst of coronavirus-associated (SARS-CoV-2) acute respiratory disease coronavirus disease 19 (COVID-19) in December 2019 in Wuhan, China is the third recognised spill over due to the zoonotic transmission. SARS-CoVs are about 29.7 kb positive, single stranded (ss) RNA viruses that are considered as zoonotic pathogens, bat being their natural reservoirs and also shows transmission within humans. The rapidly increasing COVID-19 cases and need of best and efficient drug/vaccine/strategy to counteract the virus entry and its pathogenesis has made it a Herculean challenge for scientists. Synthetic drugs associated complications has attracted scientific attention for natural product-based drugs. Chemo-diversity of algae and cyanobacteria offers a novel approach and can be recognized as a relevant source for developing a future natural “antiviral drug”. The aim of this review is to highlight important features of SARS-CoV-2/COVID-19 and the antiviral compounds recognized in algae and cyanobacteria, with their mechanisms of actions. Algae possess both immunity improving capacity and suppresses many viruses. Thus, they can be recommended as a preventive and curative remedy against SARS-CoV-2.
    Keywords Coronavirus ; 2019-nCoV ; Algal compounds ; Medicine (General) ; R5-920 ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Estrone degrading enzymes of

    Sami, Neha / Ansari, Sabbir / Yasin, Durdana / Fatma, Tasneem

    Biotechnology reports (Amsterdam, Netherlands)

    2020  Volume 26, Page(s) e00464

    Abstract: Estrone, a steroidal estrogen that is persistently contaminating the surface water has been classified as an endocrine disruptor and as Group-1 carcinogen by the World Health Organization. Long-term exposure to estrone-contaminated water disrupt ... ...

    Abstract Estrone, a steroidal estrogen that is persistently contaminating the surface water has been classified as an endocrine disruptor and as Group-1 carcinogen by the World Health Organization. Long-term exposure to estrone-contaminated water disrupt physiology, behaviour and sexual development of living organisms that lead to many disorders. So, it has to be eliminated from our surrounding. Its biological degradation is a cost effective and eco-friendly approach. The present study targets to predict the degradation pathway and understand the role of cyanobacterial enzymes: oxidoreductases (laccase, peroxidase) and esterase in estrone degradation. Poly-β-hydroxy butyrate (PHB) was also quantified as a by-product of estrone biodegradation. The estrone degradation pathway was predicted using EAWAG-BBD/PPS database.
    Language English
    Publishing date 2020-04-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2801018-8
    ISSN 2215-017X
    ISSN 2215-017X
    DOI 10.1016/j.btre.2020.e00464
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Exogenous salicylic acid mediated herbicide (Paraquat) resistance in cyanobacterial biofertilizer Microchaete sp. NCCU-342

    Naaz, Haleema / Yasin, Durdana / Afzal, Bushra / Sami, Neha / Khan, Nida Jamil / Fatma, Tasneem

    Environ Sci Pollut Res. 2023 Feb., v. 30, no. 10 p.25069-25079

    2023  

    Abstract: Paddy field farming remains the dominant form of growing rice in modern times as the rice is the staple food for over half the world’s population and is closely associated with food security and political stability of many countries. Record increase in ... ...

    Abstract Paddy field farming remains the dominant form of growing rice in modern times as the rice is the staple food for over half the world’s population and is closely associated with food security and political stability of many countries. Record increase in rice production have been observed since the start of the Green Revolution. India is one of the largest paddy producer and exporter in the world. However, constant use of chemical herbicide like paraquat had shown adverse impact on the rice yield. Non-target organisms of the habitat including cyanobacterial paddy biofertilizer face the herbicide toxicity and are unable to perform efficiently their role as biofertilizer. Therefore, in the present study, an attempt has been made to enhance the paraquat resistance in rice biofertilizer (Microchaete sp. NCCU-342) by exogenous addition of salicylic acid. Paraquat showed toxicity in Microchaete sp. NCCU-342 in a dose-dependent manner. Concentration of paraquat >1.0 μM exhibited lethal effect since the beginning. Through successive narrow range experiment, LD50 value of paraquat was obtained as 0.6 μM. Biomass exposed to paraquat (LD50 value) and salicylic acid (0.3 mM) showed mitigation in free radical production (2.20 % MDA and 1.69 % H₂O₂) and enhancement in the activity of the antioxidant enzymes activity, i.e. SOD, CAT, APX (137.76 %, 87.45 %, 118 %, respectively) and osmolytes (3.8 % proline and 21.51% sucrose). Thus, for sustainable agricultural practice, especially for paddy field cyanobacterial biofertilizer, application of salicylic acid or organism with higher salicylic acid production ability may be an alternative to overcome the paraquat toxicity.
    Keywords antioxidants ; biofertilizers ; biomass ; dose response ; food security ; free radicals ; habitats ; lethal dose 50 ; paddies ; paraquat ; politics ; proline ; rice ; salicylic acid ; staple foods ; sucrose ; India
    Language English
    Dates of publication 2023-02
    Size p. 25069-25079.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-15378-0
    Database NAL-Catalogue (AGRICOLA)

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