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Effect of citrus peeling (Citrus sinensis) on production performance, humoral immunity, nutrients, and energy utilization of broiler quails. Poult Sci 2024; 103:103207. [PMID: 37931398 PMCID: PMC10654238 DOI: 10.1016/j.psj.2023.103207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023] Open
Abstract
Citrus citrus peeling has a wide range of vitamins and trace minerals that have antioxidant and antimicrobial properties. It is hypothesized that the addition of citrus peeling to broiler quail diets can improve their production performance, humoral immunity, nutrients, and energy utilization. A trial was performed to study the impact of a methanolic extract of citrus peeling (Citrus sinensis) on production performance, humoral immunity, nutrients, and energy utilization of broiler quails. A healthy day-old 300 quails were randomly assigned with 5 replicates each replicate had 15 birds and used CRD for the trial. Different dietary supplementations were presented to different groups. The control group was not supplemented with any supplementation in their feed. While, the 3 other groups were supplemented by 0.5 mL/kg, 1 mL/kg, and 1.5 mL/kg of methanolic extract of dried Citrus sinensis peel (DCSP) in the basal diet (DCSP0.5, DCSP1, and DCSP1.5 groups, respectively). All the birds were allowed ad libitum feeding and water. The feed intake and FCR were significantly higher in the control group, followed by DCSP0.5, and then DCSP1. The significantly lowest feed intake and FCR were observed in the DCSP1.5 group. The weight gain and dressing % were significantly improved with the increasing level of methanolic extract of Citrus sinensis. The significantly highest weights of thymus, spleen, and bursa were recorded in the DCSP1.5 group, followed by the DCSP1. The antibody titers against infectious bursal disease, New Castle disease, and infectious bronchitis disease were significantly higher in the DCSP1.5, DCSP1, and DCSP0.5 groups than in the control group. It was concluded from the study that supplementation of quails with methanolic extract of citrus at a dose rate of 0.5 to 1.5 mL/kg of feed can improve feed intake, weight gain, FCR, dressing percentage, relative weight of lymphoid organs, and digestibility coefficient. Supplementation of Citrus sinensis has also concluded positive impacts on antibody titers against various viral diseases. The best improvement in the evaluated parameters was observed at a dose of extract of citrus was 1.5 mL/kg of feed.
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The human-wildlife conflict in Musk Deer National Park, Neelum Gureze Valley, Azad Jammu & Kashmir, Pakistan. BRAZ J BIOL 2024; 84:e261655. [DOI: 10.1590/1519-6984.261655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/13/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Growing human population is a solemn risk to biodiversity at a global level. Massive anthropogenic pressure and invasion in the natural habitats initiated the human-wildlife conflict in rural areas. Present study aimed to assess human-wildlife conflict in Musk Deer National Park (MDNP) from 2013 to 2018. Results revealed an estimated 241784 nomadic and 5589 residential livestock heads grazed in different areas of MDNP during the summer season. A total of 126 heads were depredated by carnivores during the study period. Majority (n=39) of livestock heads were killed in May (n=29). Livestock depredation resulted in economic losses worth 3.115 million PKRs (25744 US$) to the herder community while farmers received 1.629 million PKRs (13466 US$) losses due to crop raiding. Most (64%) of the respondents believed human-wildlife conflict heightened due to scarcity of food or prey in the natural habitats of carnivores. Majority (92%) of the respondents did not like the presence of predators in MDNP. Loss compensation schemes could turn this negative attitude into the positive one and increase tolerance about the presence of carnivores in their vicinity. This study provides an insight into the human-wildlife conflict in MDNP and paves a way for understanding the conflict and conservation of carnivore species in the study area.
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Effectiveness of neck stabilization and Contrology training in comparison to conventional therapy amongst individuals with text neck syndrome. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2023; 27:8340-8349. [PMID: 37782151 DOI: 10.26355/eurrev_202309_33756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
OBJECTIVE Cell phones are carried by 79% of people between 18 and 44 years of age for nearly the entire day. Smartphone users spend an average of three hours/per day on their devices, whereas heavy smartphone users spend 8-10 hours/per day on their devices. Text neck is a dangerous disorder that can accelerate the degeneration of the spine. This study aimed to investigate the efficacy of neck stabilization training vs. Contrology or Pilates training in individuals with Text Neck Syndrome. PATIENTS AND METHODS Participants (n=75) with a history of recurrent neck pain in the previous four months, having moderate pain (at least 4/10 on the numeric pain rating scale, NPRS), and constantly using mobile phones (>4 hours/day) were randomly allocated to one of three groups: a control group (neck isometric training) and two intervention groups (neck stabilization training and Contrology). They were assessed for craniovertebral angle (CVA), NPRS, and neck disability index (NDI) at baseline and at 4 weeks post-intervention. RESULTS There was a significant difference in the CVA, NPRS, and NDI among individuals with Text Neck Syndrome following intervention as compared to the control. Both the neck stabilization and Contrology training increased CVA and reduced neck pain and neck disability in individuals with Text Neck Syndrome. The two intervention groups showed similar effects in all the clinical outcome measures, suggesting almost equivalent effectiveness in the individuals with Text Neck Syndrome. CONCLUSIONS Neck stabilization seems to work better than Contrology training when it comes to increasing the craniovertebral angle, reducing pain intensity, and making it easier for individuals with Text Neck Syndrome to move their necks.
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Estimands for atopic dermatitis clinical trials: Expert opinion on the importance of intercurrent events. J Eur Acad Dermatol Venereol 2023; 37:976-983. [PMID: 36652273 DOI: 10.1111/jdv.18881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
Despite the emergence of novel targeted treatments for atopic dermatitis (AD), there is a lack of guidelines on standardizing analysis of clinical trial data. To define and estimate meaningful treatment comparisons, several factors, including intercurrent events, must be taken into account. Intercurrent events are defined as events occurring after treatment initiation that affect either the interpretation or existence of the measurements associated with clinical questions of interest. Due to the relapsing, unpredictable nature of AD, intercurrent events frequently occur in AD trials, such as use of rescue therapy for intense itch and sleep deprivation. Despite the impact of intercurrent events in AD, they are often handled in an inconsistent manner across trials, which limits results interpretation. The estimand framework is increasingly used to estimate treatment effects while accounting for intercurrent events. This review explores how guidance from the International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use (ICH) on the use of estimands can be applied to support AD clinical trial design and analysis. We propose that estimands are used in AD trials and defined early during trial design. The use of estimands can provide clinicians with interventional trial results that are more reflective of clinical practice, help facilitate comparisons across clinical trials, and are more informative to enable improved treatment selection for patients.
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Author Correction: Association of monomeric C-Reactive Protein (m-CRP) with hypothalamic neurons after CRP hippo-campal administration in a model of dementia. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2023; 27:443. [PMID: 36734699 DOI: 10.26355/eurrev_202301_31044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Correction to: European Review for Medical and Pharmacological Sciences 2022; 26 (22): 8713-8718. DOI: 10.26355/eurrev_202212_30543- PMID: 36524490-published online on December 15, 2022. After publication, the authors applied a correction to the funding statement: The authors extend their appreciation to the deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number (lFP-2020-36). There are amendments to this paper. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/30543.
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Integrating Surface Functional Modification and Energy-Level Adapted Coupling of Photocatalyst with Ultrafast Carrier Separation for Uranium Extraction. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Synergistically boosting the Oxygen Evolution Reaction activity of NiOOH nanosheets by Fe Doping. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Effects of cooking methods on physicochemical properties, antioxidant
properties and sensory acceptability of purple sweet potato (Ipomoea batatas). FOOD RESEARCH 2022. [DOI: 10.26656/fr.2017.6(6).1008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Purple sweet potato is commonly cooked by boiling, steaming, baking and microwaving.
However, information on the effects of cooking methods on the physicochemical
properties, antioxidants properties and sensory acceptability is limited. In this study, the
effect of cooking methods (boiling, steaming, baking and microwaving) on the
physicochemical properties, antioxidant properties and sensory acceptability of purple
sweet potato were investigated. The results showed that the boiled sample was the softest
(hardness of 933.39 g) and also had the highest total colour difference (18.56), while the
steamed sample was the most adhesive (-92.35 g.s) and least cohesive (0.41). An
increased moisture content caused a decrease in other proximate compositions in the
samples. The baked sample had the highest antioxidant properties, with 232.20 mg
GAE/100 g of total phenolic content, 2.05 mg cyaniding-3-glucoside/L of total
anthocyanins, 61.95% of DPPH and 79.20% of ABTS radical-scavenging activity. The
steamed sample was rated most acceptable by the panellists.
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Fused Deposition Modelling of Polymer Composite: A Progress. Polymers (Basel) 2022; 15:polym15010028. [PMID: 36616377 PMCID: PMC9823360 DOI: 10.3390/polym15010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 12/24/2022] Open
Abstract
Additive manufacturing (AM) highlights developing complex and efficient parts for various uses. Fused deposition modelling (FDM) is the most frequent fabrication procedure used to make polymer products. Although it is widely used, due to its low characteristics, such as weak mechanical properties and poor surface, the types of polymer material that may be produced are limited, affecting the structural applications of FDM. Therefore, the FDM process utilises the polymer composition to produce a better physical product. The review's objective is to systematically document all critical information on FDMed-polymer composite processing, specifically for part fabrication. The review covers the published works on the FDMed-polymer composite from 2011 to 2021 based on our systematic literature review of more than 150 high-impact related research articles. The base and filler material used, and the process parameters including layer height, nozzle temperature, bed temperature, and screw type are also discussed in this review. FDM is utilised in various biomedical, automotive, and other manufacturing industries. This study is expected to be one of the essential pit-stops for future related works in the FDMed-polymeric composite study.
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Schizosaccharomyces pombe Grx4, Fep1, and Php4: In silico analysis and expression response to different iron concentrations. Front Genet 2022; 13:1069068. [PMID: 36568394 PMCID: PMC9768344 DOI: 10.3389/fgene.2022.1069068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/16/2022] [Indexed: 12/12/2022] Open
Abstract
Due to iron's essential role in cellular metabolism, most organisms must maintain their homeostasis. In this regard, the fission yeast Schizosaccharomyces pombe (sp) uses two transcription factors to regulate intracellular iron levels: spFep1 under iron-rich conditions and spPhp4 under iron-deficient conditions, which are controlled by spGrx4. However, bioinformatics analysis to understand the role of the spGrx4/spFep1/spPhp4 axis in maintaining iron homeostasis in S. pombe is still lacking. Our study aimed to perform bioinformatics analysis on S. pombe proteins and their sequence homologs in Aspergillus flavus (af), Saccharomyces cerevisiae (sc), and Homo sapiens (hs) to understand the role of spGrx4, spFep1, and spPhp4 in maintaining iron homeostasis. The three genes' expression patterns were also examined at various iron concentrations. A multiple sequence alignment analysis of spGrx4 and its sequence homologs revealed a conserved cysteine residue in each PF00085 domain. Blast results showed that hsGLRX3 is most similar to spGrx4. In addition, spFep1 is most closely related in sequence to scDal80, whereas scHap4 is most similar to spFep1. We also found two highly conserved motifs in spFep1 and its sequence homologs that are significant for iron transport systems because they contain residues involved in iron homeostasis. The scHap4 is most similar to spPhp4. Using STRING to analyze protein-protein interactions, we found that spGrx4 interacts strongly with spPhp4 and spFep1. Furthermore, spGrx4, spPhp4, and spFep1 interact with spPhp2, spPhp3, and spPhp5, indicating that the three proteins play cooperative roles in iron homeostasis. At the highest level of Fe, spgrx4 had the highest expression, followed by spfep1, while spphp4 had the lowest expression; a contrast occurred at the lowest level of Fe, where spgrx4 expression remained constant. Our findings support the notion that organisms develop diverse strategies to maintain iron homeostasis.
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Small dense low-density lipoprotein and clinical factors factors associated with early onset acute coronary syndrome. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Association of monomeric C-Reactive Protein (m-CRP) with hypothalamic neurons after CRP hippo-campal administration in a model of dementia. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2022; 26:8713-8718. [PMID: 36524490 DOI: 10.26355/eurrev_202212_30543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The ensuing ischemia due to the disruption of blood supply to the brain is one of the most common causes of stroke. Evidence suggests a clear association of the ischemic injury with vascular dementia and Alzheimer's disease (AD). In response to the brain ischemia, a cascade reaction starts leading to neuronal damage due to oxidative stress and other inflammatory mediators. A pilot study was done, which showed that following stroke, monomeric-C-reactive protein (mCRP) is expressed in large quantities around the infarcted zone and this CRP is able to induce neurodegeneration and inflammation potentially perpetuating dementia. MATERIALS AND METHODS We examined both patient brain samples and excised mouse brain tissue, previously injected with 1.75 mg/mL mCRP into the CA1 area of the hippocampus through the stereotactic surgical procedures and followed them over a period of over 6 months. The distribution of mCRP was examined through immunohistochemistry (mouse anti-human mCRP-specific antibodies 8C10). RESULTS We observed a novel finding: those micro vessels close to the injection location were strongly stained with mCRP only in the mice that had been injected with mCRP, indicating that this small blood vessel can spread it throughout the brain. CONCLUSIONS mCRP found in the brain after a hemorrhagic stroke promotes damage over a large area via the induction of inflammation and degeneration of perivascular compartments.
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Do banks enjoy technology under competitive pressures? Cross-country evidence. TECHNOLOGY ANALYSIS & STRATEGIC MANAGEMENT 2022. [DOI: 10.1080/09537325.2022.2147423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Comparison of Growth of School Children in Mymensingh City Area, Bangladesh Using the 2000 CDC Standards and 2007 WHO Standards. Mymensingh Med J 2022; 31:983-991. [PMID: 36189542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Growth assessment is an essential component of child health surveillance. The most influential tool in the growth assessment is the growth chart. Growth parameters of children are usually interpreted in relation to international standards like the NCHS/1977, CDC/2000 and WHO/2007 growth charts. This comparative study was carried out in the Department of Paediatrics, Mymensingh Medical College, Mymensingh, Bangladesh from November 2014 to October 2015 to compare the growth parameters of children using 2000 CDC standards and 2007 WHO standards. A total of five hundred healthy school children, aged 6 to 10 years were randomly selected proportionately from each class of five government primary schools from Mymensingh city area. Children with physical deformities and acutely ill and those with chronic debilitating diseases were excluded from the study. The mean and median weight, height and BMI were calculated for each age and sex. The median weight, height and BMI were then standardized by converting them to Z-scores (SD) for comparing against known reference values of 2000 CDC and 2007 WHO charts. Among 500 children, 252(50.4%) were boys and 248(49.6%) were girls. The mean age was found 8.0±1.42 years in boys and 8.04±1.42 years in girls. The mean weight was found 24.4±6.36kg in boys and 24.08±6.35kg in girls. The mean height was 125.90±10.16cm in boys and 125.38±10.74cm in girls. The mean weight, height and BMI of boys and girls were found to be lower in all age groups with compared to 2000 CDC standard and 2007 WHO standard but were closer to the WHO standards compared to the CDC standards. According to CDC and WHO in the study it was observed that underweight was found 16.3% and 14.7%, stunting 7.1% and 6.7%, overweight 6.7% and 8.7%, and obese 2.8% and 4.0% respectively in male subjects. On the other hand, in female subjects it was observed that according to CDC chart and WHO chart underweight was found 19.4% and 13.3%, stunting 6.0% and 4.8%, overweight 7.3% and 8.1% and obese 2.0% and 2.0% respectively. The findings in this study imply that growth pattern of Bangladeshi school children is closer with WHO standards and wider from CDC standards.
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Nemolizumab efficacy in prurigo nodularis: onset of action on itch and sleep disturbances. J Eur Acad Dermatol Venereol 2022; 36:1820-1825. [PMID: 35766128 PMCID: PMC9796585 DOI: 10.1111/jdv.18377] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 06/02/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Patients with prurigo nodularis (PN) have multiple itchy nodules, impaired quality of life and sleep deprivation. Prurigo nodularis patients have a high burden of disease, primarily due to the intensity of the itch. It is reasonable to expect that rapid relief of itch - and associated improvement of sleep - are highly valued clinical outcomes for patients. Nemolizumab is an IL-31A-receptor inhibitor that modulates the neuroimmune response with reported positive efficacy and safety data in a phase 2 study of PN. OBJECTIVES To evaluate the onset of action of nemolizumab on itch and sleep disturbances. METHODS Post hoc analysis of a phase 2 trial of nemolizumab 0.5 mg/kg SC vs. placebo in patients (n = 70) with moderate-to-severe PN (≥20 nodules) and severe pruritus (NRS ≥ 7). Time to significant reduction was assessed for peak pruritus (PP) and sleep disturbance (SD) using numerical rating scales (NRS), also assessed was scratching time during sleep. RESULTS Nemolizumab significantly reduced itch vs. placebo within 48 h (PP NRS -19.5% vs. -5.8%, respectively, P = 0.014). Significant difference between nemolizumab and placebo in reducing itch by ≥4 on PP NRS was achieved at Day 3 (23.5% vs. 0%, P < 0.001). A significant difference in SD NRS was reported by Day 4 (-24.0% vs. -4.3% placebo, P = 0.012). In addition, there was a separation between groups in SD responders (decrease of ≥4 points) in favour of nemolizumab by Day 2 (8.8% vs. 0%, P = 0.037). Sleep continued improving through Week 4, when there was a -56.0% reduction in SD NRS vs. -22.9% placebo (P < 0.001). Actigraphy data showed improvement in scratch/sleep duration for nemolizumab vs. placebo, respectively, by Week 1 (-32.15 vs. +28.15 min/h, P = 0.001). CONCLUSION Nemolizumab has a rapid and robust onset of action in PN with itch reduction and improvement of sleep within 48 h.
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Sorption of Ni(II) by sol-gel silica functionalized with DMG and other chelating agents. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2127751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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A review on fish sauce processing, free amino acids and peptides with sensory
properties. FOOD RESEARCH 2022. [DOI: 10.26656/fr.2017.6(5).562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Fish sauce is a well-known condiment for its delicious flavour developed through a
fermentation process. It is generally used as an additive for flavour enhancement in
cooking. The fish sauce comes in several appearances, ranging from a clear liquid with
light colour and texture to a dark and cloudy liquid. This product is produced by a longduration of fermentation process by the combination of fish and salt. This high salt
fermentation began with the action of enzymes from fish muscle and its digestive tracts,
then continued with halophilic bacteria activity to further break down fish proteins in
producing a liquid product with a mixture of soluble proteins, peptides and amino acids.
This review is comprised of two sections, the first section covers various processing
methods of fish sauces, mainly in the Asia region, namely Nam-pla, Nuoc-mam, Yu-lu,
Ishiru, Shottsuru, Bakasang and Budu. These fish sauces roughly involve applying salt for
fermentation, with different fish species, salt concentration, fermentation duration and
processing techniques. The later section covers taste-contributing components of fish
sauces in the scope of amino acids and peptides. Five of the major amino acids found to
taste in the fish sauce, glutamic acid, threonine, alanine, methionine and histidine, are also
reviewed in this paper. Sensory peptides in fish sauces shown in this paper are peptides
with salt taste enhancement properties and peptides exhibiting sweet, sour, bitter, umami
and kokumi tastes.
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Scoping Review of Existing Evaluations of Smokeless Tobacco Control Policies: What Is Known About Countries Covered, Level of Jurisdictions, Target Groups Studied, and Instruments Evaluated? Nicotine Tob Res 2022; 24:1344-1354. [PMID: 35428887 DOI: 10.1093/ntr/ntac102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/17/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The implementation of smokeless tobacco control policies lags behind those for smoking. This scoping review summarizes the studies that evaluated public policies on smokeless tobacco regulation (SLT) and provides an overview of the jurisdictional level, target groups, and policy instruments. METHODS Seven databases were systematically searched for studies reporting on public policies regulating SLT. Two reviewers independently screened all studies. Data extraction was performed using a predefined extraction form. Extraction was replicated for 10% of the identified studies for quality assurance. A narrative synthesis of the included studies was used to analyze and interpret the data. The protocol was published beforehand with the Open Science Foundation (OSF). RESULTS Fourty articles comprising 41 studies were included. Most of the studies reported in the articles were conducted in the United States (n = 17) or India (n = 14). Most studies reported outcomes for students (n = 8), retailers/sellers (n = 8), and users/former users (n = 5). The impact of public policies on smokeless tobacco use, in general, was most frequently assessed (n = 9), followed by the impact of taxes (n = 7), product bans (n = 6), sales/advertising bans near educational institutions (n = 4), and health warnings (n = 3) on consumer behavior. CONCLUSIONS There are significant gaps in the evaluation of smokeless tobacco regulation studies that need to be filled by further research to understand the observed outcomes. WHO reporting on Framework Convention on Tobacco Control (FCTC) implementation should be linked to studies evaluating smokeless tobacco control measures at all levels of jurisdictions and in countries not members of the WHO FCTC or do not provide data. IMPLICATION Large gaps in the evaluation of SLT control policies exist. For some countries, WHO FCTC evaluations are available for different levels of jurisdictions. In countries with a strong federal structure, there is a lack of data beyond the national level to provide a more detailed look at compliance, indirect effects, or implementation gaps. More research is needed at all levels of jurisdictions, which add to the work of the WHO to understand what works for which target group, how the different levels of jurisdiction interact, how the real-world context can be incorporated, and what indirect effects may occur.
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Biosorption of Ni(II) ions from aqueous solutions using Melia azedarach biomass. B CHEM SOC ETHIOPIA 2022. [DOI: 10.4314/bcse.v36i3.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
ABSTRACT. Biosorption is a cost effective tool for removing heavy metals from aqueous solutions. In the present study, M. azedarach biomass has been used for the biosorption of Ni(II) ion from aqueous solution. The effect of pH, contact time, concentration and temperature were separately studied. The optimum pH was found to be 6.0. 92% biosorption of Ni(II) ion was founded, when 25 mg/L of initial Ni(II) ion concentrations was used at room temperatures in 60 min. It was also observed that percent biosorption of Ni(II) increases with increase in temperature. The equilibrium biosorption data were analyzed by the Langmuir and Freundlich isotherms both were best fitted to our data. The maximum biosorption capacity (qmax) of 9.345 mg/g for Ni(II) according to Langmuir model. The kinetics of Ni(II) ion revealed that present biosorption process proceeds according to pseudo second order kinetics. From Thermodynamic parameters including Gibbs free energy change (∆G), enthalpy change (DH) and entropy change (ΔS), it was concluded that biosorption of Ni(II) ion using M. azedarach biomass is feasible, spontaneous and endothermic in nature.
KEY WORDS: Ni(II) ions, Melia azedarach, Biosorption, Kinetics, Thermodynamics
Bull. Chem. Soc. Ethiop. 2022, 36(3), 521-530.
DOI: https://dx.doi.org/10.4314/bcse.v36i3.3
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Proactive Caching in D2D Assisted Multitier Cellular Network. SENSORS 2022; 22:s22145078. [PMID: 35890758 PMCID: PMC9322377 DOI: 10.3390/s22145078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023]
Abstract
Cache-enabled networks suffer hugely from the challenge of content caching and content delivery. In this regard, cache-enabled device-to-device (D2D) assisted multitier cellular networks are expected to relieve the network data pressure and effectively solve the problem of content placement and content delivery. Consequently, the user can have a better opportunity to get their favored contents from nearby cache-enabled transmitters (CETs) through reliable and good-quality links; however, as expected, designing an effective caching policy is a challenging task due to the limited cache memory of CETs and uncertainty in user preferences. In this article, we introduce a joint content placement and content delivery technique for D2D assisted multitier cellular networks (D2DMCN). A support vector machine (SVM) is employed to predict the content popularity to determine which content is to be cached and where it is to be cached, thereby increasing the overall cache hit ratio (CHR). The content request is satisfied either by the neighboring node through the D2D link or by the cache-enabled base stations (BSs) of the multitier cellular networks (MCNs). Similarly, to solve the problem of optimal content delivery, the Hungarian algorithm is employed aiming to improve the quality of satisfaction. The simulation results indicate that the proposed content placement strategy effectively optimizes the overall cache hit ratio of the system. Similarly, an effective content delivery approach reduces the request content delivery delay and power consumption.
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21
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Proximate composition, amino acid composition and food product application of
anchovy: a review. FOOD RESEARCH 2022. [DOI: 10.26656/fr.2017.6(4).419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Anchovies are the small pelagic fish that belongs to the family of Engraulidae dominant
all over the Indo-Pacific region, which account for human consumption and as feed for
other larger fish. Anchovies are rich in macronutrients and micronutrients such as protein,
carbohydrate, fat and amino acids. In addition, anchovy is composed of well-balanced
amino acid compositions containing eight essential amino acids and eight non-essential
amino acids. The nutritive value of anchovies has become the reason for numerous food
applications. Proximate analysis is vital in the food industry for the development and
quality controls of food products. Knowledge and information regarding the proximate
composition of fish are essential in the food processing technology of fish products at
commercial and industrial scales. Additionally, this review highlights both conventional
and innovative anchovy-based food items. The review demonstrated that anchovies have
several possible breakthroughs in the food industry, as shown by their proximate
composition and the amino acid profiles used in various food items.
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22
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Effects of Cu 2+/Zn 2+ on the electrochemical performance of polyacrylamide hydrogels as advanced flexible electrode materials. RSC Adv 2022; 12:19072-19085. [PMID: 35865600 PMCID: PMC9244644 DOI: 10.1039/d2ra02391a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Previously, solid-state electrode materials have been utilized for the fabrication of energy storage devices; however, their application is impeded by their brittle nature and ion mobility problems. To address issues faced in such a modern era where energy saving and utility is of prior importance, a novel approach has been applied for the preparation of electrode materials based on polyacrylamide hydrogels embedded with reduced graphene oxide and transition metals, namely, Cu2+ and Zn2+. The fabricated hydrogel exhibits high electrical properties and flexibility that make it a favorable candidate to be used in energy storage devices, where both elastic and electrical properties are desired. For the first time, a multi-cross-linked polyacrylamide hydrogel was constructed and compared in the presence of other electro-active materials such as reduced graphene oxide and transition metals. Polyacrylamide hydrogels embedded with reduced graphene oxide demonstrate excellent electrical properties such as specific capacitance, least impedance, low phase angle shift and AC conductivity of 22.92 F g-1, 2115 Ω, 2.88° and 0.67 μδ m-1 respectively as compared to Cu2+- and Zn2+-loaded hydrogels, which block all available active sites causing an increase in impedance with a parallel decrease in capacitance. The capacitance retention and coulombic efficiency calculated were 88.22% and 77.23% respectively, indicating high stability up to 150 cycles at 0.1 A g-1. Storage moduli obtained were 10.52 kPa, which infers the more elastic nature of the hydrogel loaded with graphene oxide than that of other synthesized hydrogels.
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23
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Screening a novel six critical gene-based system of diagnostic and prognostic biomarkers in prostate adenocarcinoma patients with different clinical variables. Am J Transl Res 2022; 14:3658-3682. [PMID: 35836886 PMCID: PMC9274568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/10/2022] [Indexed: 06/15/2023]
Abstract
The mechanisms behind prostate adenocarcinoma (PRAD) pathogenicity remain to be understood due to tumor heterogeneity. In the current study, we identified by microarray technology six eligible real hub genes from already identified hub genes through a systematic in silico approach that could be useful to lower the heterogenetic-specific barriers in PRAD patients for diagnosis, prognosis, and treatment. For this purpose, microarray technology-based, already-identified PRAD-associated hub genes were initially explored through extensive literature mining; then, a protein-protein interaction (PPI) network construction of those hub genes and its analysis helped us to identify six most critical genes (real hub genes). Various online available expression databases were then used to explore the tumor driving, diagnostic, and prognostic roles of real hub genes in PRAD patients with different clinicopathologic variables. In total, 124 hub genes were extracted from the literature, and among those genes, six, including CDC20, HMMR, AURKA, CDK1, ASF1B, and CCNB1 were identified as real hub genes by the degree method. Further expression analysis revealed the significant up-regulation of real hub genes in PRAD patients of different races, age groups, and nodal metastasis status relative to controls. Moreover, through correlational analyses, different valuable correlations between treal hub genes expression and different other data (promoter methylation status, genetic alterations, overall survival (OS), tumor purity, CD4+ T, CD8+ T immune cells infiltration, and different other mutant genes and a few more) across PRAD samples were also documented. Ultimately, from this study, a few important transcription factors (TFS), miRNAs, and chemotherapeutic drugs showing a great therapeutic potential were also identified. In conclusion, we have discovered a set of six real hub genes that might be utilized as new biomarkers for lowering heterogenetic-specific barriers in PRAD patients for diagnosis, prognosis, and treatment.
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Immunotherapy of inflammatory bowel disease (IBD) through mesenchymal stem cells. Int Immunopharmacol 2022; 107:108698. [DOI: 10.1016/j.intimp.2022.108698] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/02/2022] [Accepted: 03/10/2022] [Indexed: 02/07/2023]
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25
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Evaluation of taste active peptides and amino acids from anchovy proteins in fish sauce by in silico approach. Food Sci Biotechnol 2022; 31:767-785. [DOI: 10.1007/s10068-022-01097-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/14/2022] [Accepted: 05/02/2022] [Indexed: 11/04/2022] Open
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26
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Rationale and Design of the TARGET-EFT Trial: Multicomponent Intervention for Frail and Pre-frail Patients Hospitalized with Acute Cardiac Conditions. J Nutr Health Aging 2022; 26:282-289. [PMID: 35297472 PMCID: PMC8900965 DOI: 10.1007/s12603-022-1759-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/02/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND With the aging population and rising rates of cardiovascular disease (CVD), cardiologists and cardiac surgeons are encountering a growing number of frail older patients that have complex cardiac and non-cardiac issues. Measuring frailty provides valuable prognostic information to help personalize treatment decisions. However, there is minimal evidence on multicomponent frailty interventions in this setting. The TARGET-EFT (The MulTicomponent Acute Intervention in FRail GEriatric PaTients with cardiovascular disease using the Essential Frailty Toolset) trial aims to target physical and non-physical frailty deficits to improve health-related quality of life and hospital-acquired disability in frail patients hospitalized with CVD. METHODS The TARGET-EFT trial is a single-center parallel-group randomized clinical trial in frail and pre-frail older adults ≥65 years admitted to the cardiovascular unit (CVU) at the Jewish General Hospital, Montreal, Quebec. The trial will compare usual inpatient care to a multicomponent intervention targeting physical weakness, cognitive impairment, malnutrition, and anemia. Outcomes of interest in both groups will be assessed at three time points: (1) study enrollment, (2) discharge from the CVU, and (3) 30 days after hospital discharge. CONCLUSIONS The overarching goal is to treat patients' frailty in parallel with their CVD, and in doing so, optimize patient functional losses while in-hospital and shortly thereafter. The results of this trial will inform best practices for patient-centered care in this vulnerable patient group.
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Hypomagnesemia in Pre-Renal Acute Kidney Injury Patients with Non-Recovery of the Renal Functions. PAKISTAN ARMED FORCES MEDICAL JOURNAL 2022. [DOI: 10.51253/pafmj.v72i2.3479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective: To determine the hypomagnesaemia frequency in pre-renal acute kidney injury (AKI) patients with non-recovery of renal functions.
Study Design: Cross-sectional study.
Place and Duration of Study: Al-Noor Specialist Hospital Holy Makah, Saudi Arabia, from Jul 2014 to Jan 2015.
Methodology: A total of 150 acute kidney injury patients qualifying the inclusion/exclusion criteria were enrolled in this study. Serum magnesium (Mg) levels were measured for all the patients. Serum magnesium level <0.70 mmol/L (<1.7 mg/dL) was labeled as hypomagnesaemia.
Results: The mean age of the patients was 51.64 ± 13.61 years, with 31% males and 69% females. Hypertension was present in 58 (38.7%) patients, 38 (25.3%) patients were obese, and hypomagnesaemia was present in 25% patients. A statistically insignificant difference was found between age of patients (p=0.086) and gender (p=0.970).
Conclusion: Our study showed that in patients with acute kidney injury with non-recovery of renal functions, the rate of hypomagnesaemia is quite high. Therefore patients with non-recovery should be screened for magnesium levels in future acute kidney injury.
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Efficacy of Nebulized Hypertonic Saline (3%) Versus Normal Saline and Salbutamol in Treating Acute Bronchiolitis in A Tertiary Hospital: A Randomized Controlled Trial. Mymensingh Med J 2022; 31:295-303. [PMID: 35383741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Acute bronchiolitis is a viral respiratory illness of infants and young children that occurs in the first two years of life. It is a major cause of hospital admissions in Bangladesh. Management of bronchiolitis is a great challenge for the pediatrician both in the outpatient and inpatient department. Because mainstay of treatment options are usually supportive like cool humidified oxygen, fluids, bronchodilators, epinephrine and corticosteroids. A number of agents have been proposed as adjunctive therapies, but their effects are controversial. Nebulized hypertonic saline (3%) has been reported to have some benefit in recent studies. So the objective of this study was to compare the efficacy of nebulized 3% hypertonic saline (HS) with salbutamol and normal saline (0.9%) nebulization in children with acute bronchiolitis. A double-blind randomized controlled trial was conducted in the Department of Paediatrics, Mymensingh Medical College Hospital, Bangladesh from November 2015 to October 2016. A total of 100 children aged one month to two years with acute bronchiolitis admitted in the Pediatric wards of MMCH were included in the study and were randomly assigned to either 3% nebulized hypertonic saline (n=50) or to 0.9% nebulized isotonic saline with salbutamol solution (n=50). The main outcome variables were clinical severity score, length of hospital stay, duration of oxygen therapy and oxygen saturation (SpO2). The therapy was repeated three times on every hospitalization day and the outcome was evaluated two times daily (12 hourly) for 60 hours. Mean duration of oxygen therapy in study group was 33.6±21.7 hours and in control group was 36.8±22.5 hours. But their difference was not statistically significant (p>0.05). The mean clinical severity score and mean oxygen saturation of the entire study patients in both groups decreased and increased respectively during hospital stay. There was significant difference of mean clinical severity score and oxygen saturation between admission and follow up-5 in each group (p<0.001). But their difference between two groups was not statistically significant (p>0.05). Mean duration of hospital stay was 2.91±1.54 days in study group and 3.09±1.85 days in control group. But their difference between two groups was not statistically significant (p>0.05). So in acute bronchiolitis nebulized hypertonic saline (3%) is as effective as normal saline (0.9%) and salbutamol nebulization.
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Serum Electrolyte, Serum Calcium and Blood Sugar Status in Severe Acute Malnutrition and Their Relationship with Edema, Vomiting and Diarrhea. Mymensingh Med J 2022; 31:281-288. [PMID: 35383739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Severe acute malnutrition (SAM) is the most severe form of protein energy malnutrition (PEM). Few studies found serum electrolyte, serum calcium level changes as important factors of poor outcome. Hypoglycemia is already established as a risk factor for death in severe acute malnutrition. Edema, diarrhea and vomiting are commonly present in severe acute malnutrition which has impact on electrolyte balance and blood sugar level in healthy children. Their impact in severe acute malnutrition is not clearly established. This cross sectional descriptive study was conducted in Department of Pediatrics, MMCH from March 2018 to October 2019 to estimate serum electrolyte, serum calcium and random blood sugar level in severe acute malnutrition and their relationship with edema, vomiting and diarrhea. Forty-one (41) cases of SAM were enrolled in this study. Test samples were collected before starting the treatment. Case record form was used to collect information. Cases were divided into Group A and Group B based on the presence or absence of vomiting or diarrhea, respectively. Again, all cases were divided into Group C and Group D based on presence or absence of edema, respectively. Data were analyzed using IBM SPSS statistics version 23. Mean age was 9.71±10.4 months with 85.36% having age less than 1 year. Twenty-four (58.5%) were male and 17(41.5%) were female. Parents had low level of education with 48.8% mother and 51.2% father having primary education or no education. Higher number of serum electrolyte, serum calcium and blood sugar were found with hyperglycemia present in 29.3%, hypocalcemia in 22%, hypokalemia in 22% and hyponatremia in 19.5% cases. Hypokalemia was present more in SAM with vomiting or diarrhea (p=0.008). Other disturbances do not vary on presence or absence of edema and vomiting or diarrhea. Result of the present study shows hypokalemia is associated with SAM with vomiting/diarrhea. Hypocalcemia, hyperglycemia, hyponatremia and hypernatremia were also present in high number. These changes should be detected early and treated accordingly.
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Identification and analysis of iron transporters from the fission yeast Schizosaccharomyces pombe. Arch Microbiol 2022; 204:152. [PMID: 35079912 DOI: 10.1007/s00203-021-02683-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/14/2022]
Abstract
Iron is an essential trace metal ion required for all living organisms, and is taken up by iron transporters. Here, we identified and characterized three-candidate high-affinity (Fio1, Frp1 and Frp2) and two-candidate low-affinity iron transporters (Fet4 and Pdt1) from the fission yeast Schizosaccharomyces pombe. Protein sequence analyses revealed that Fio1 is a multicopper oxidase that contains three cupredoxin domains with eleven candidate iron-binding ligands, whereas Frp1 harbors a ferric reductase domain with three-candidate heme-binding ligands. Protein sequence analyses also revealed that Fet4 and Pdt1 are integral membrane proteins with 10 and 11 transmembrane regions, respectively. Deletion of fio1 and, to a lesser extent, frp1 impaired growth under iron-depleted conditions, whereas deletion of frp1 and, to a lesser extent, frp2 inhibited growth under iron-replete conditions. Deletion of fet4 and pdt1 did not affect the growth of cells under iron-depleted and iron-replete conditions. Deletion of fio1 or frp1 also increased the sensitivity of cells to other transition metals. The copper sensitivity of Δfio1 cells could be rescued by iron, suggesting that the addition of iron might decrease the uptake of potentially toxic copper in Δfio1 cells. The copper sensitivity of Δfio1 cells could also be rescued by deletion of frp1, suggesting that Fio1 and Frp1 may function together in iron and copper uptakes in S. pombe. Our results revealed that iron and copper uptake systems may be partially overlapped in S. pombe.
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Socio-demographic and Clinico-epidemiological Study of Scrub Typhus in A Tertiary Care Hospital of Mymensingh, Bangladesh. Mymensingh Med J 2022; 31:66-71. [PMID: 34999682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Scrub typhus is one of the leading causes of undifferentiated treatable febrile illness in Asia pacific region. It is grossly under diagnosed in many tropical countries of South Asia including Bangladesh, due to wide range of non-specific clinical presentations, low index of suspicion among clinicians, limited awareness and lack of accurate diagnostic facilities. This cross sectional observational study was conducted at department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh from March 2019 to February 2020 enrolling 113 diagnosed cases of scrub typhus by Immunochromatographic test (ICT) and / or Nested PCR to characterize the socio-demographic and clinico-epidemiological features of scrub typhus in Mymensingh area. Majority of the scrub typhus cases came from rural areas (63.83%) and there was a slight female predominance (52.21%). The young (32.74%) and the young-adult age group (28.31%) were mostly affected. Most of the scrub typhus cases were housewives (30.98%), followed by farmers (23.89%) and students (21.23%). All the enrolled cases presented with fever. Other findings were myalgia (76.10%), headache (56.63%), cough (30.97%), vomiting (12.38%) and Respiratory distress (9.73%). Typical eschar of scrub typhus was present only in 9(7.96%) cases and 4(3.53%) patients had rashes on their skin. Few cases (3.53%) had jaundice and 15.96% cases were anaemic. Oliguria (7.96%) and neck rigidity (1.76%) were also documented. Most of the Nested PCR positive scrub typhus cases were documented during late rainy season and beginning of winter months. Findings of the study may offer increased awareness about high burden of scrub typhus as well as heightened suspicion among clinicians for early diagnosis, timely treatment and prevention of complications.
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Ahmad F, Sajjad M, Akram MU, Zulfiqar R, Kara R, Azam AT. Analysis of Transmission of Hepatitis C Viruses: Dental vs. Surgical Procedures.. [DOI: 10.21203/rs.3.rs-1097914/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
Objectives: The primary purpose of the present study is to evaluate the cause of HCV transmission either by dental or surgical procedures in Pakistan. It will reveal the standards of current practices and knowledge of surgical instrument sterilization in Pakistan. Methods:The contemporary study design was cross-sectional. A total of 7097 patients were included in the study that was the confirmed cases of Hepatitis C from four districts of Punjab, Pakistan, during the period of three years from Jul 1, 2018, to Jun 30, 2021. The ANN model simulates a discrete Pareto distribution; descriptive statistics were applied by using SPSS 23.Results:In age distribution, most patients were aged 26-37 from the 2020- 2021 year of study with 45.6%age. The total mean ± SD was 2.42 ± .935 with 0.000P-values. Results show that high-risk variables are strongly associated with the surgical history, such as sector analysis (public and private) with 0.000 P-values. Analysis of these variables indicated that inquiry about surgical instruments sterilization and age groups(100%)were the most vital variable in the ANN model. Pareto distribution values of surgical procedures that are transmitting hepatitis C viruses more than the dental procedures. Conclusion: Surgical procedures are high transmission source of hepatitis C viruses than dental procedures. Clinical Significance: More care should be taken, and more severe sterilization measures should be taken to prevent the transmission of hepatitis C infection, especially in dental and general surgery procedures in Pakistan.
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C87. Serial Cases of Cardiovascular Manifestation on Leptospirosis: A Tales of Unfortunate Events. Eur Heart J Suppl 2021. [DOI: 10.1093/eurheartjsupp/suab124.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Abstract
Background
Leptospirosis is a zoonosis disease caused by Leptospira species. It's endemic and has become a major public health issue, especially in tropical regions. Clinical manifestation varies from mild or asymptomatic to severe multiple organ failure. We report cases of severe leptospirosis which complicates supraventricular tachycardia and myoperdicarditis from Universitas Sebelas Maret Academic Hospital.
Case Summary
The first case was a 44-year-old man referred from Internal Medicine Department with Leptospira infection with Weil’s disease. On 5th daycare, the patient was reporting had an episode of tachyarrhythmia, the ECG show SVT-AVNRT, there was no history of arrhythmic events before admitted to the hospital, the echocardiography was normal. The second case was a 67-year-old man who was referred from emergency department with shortness of breath, the ECG reveals diffuse ST-segment elevation in all limb and precordial leads with reciprocal ST-depression at aVR and V1, there was also downsloping of the PR and TP segment on precordial leads (Spodick’s sign), with normal ejection fraction on echocardiographic examination with pericardial thickening. Both patients have hsTroponin levels rose above the normal limit and serological testing found positive leptospira IgM.
Discussion
Severe leptospirosis can cause multi-organ dysfunction including cardiac involvement. The patients, in this case, suffered from leptospirosis with SVT-AVNRT and myopericarditis. The exact pathophysiology is still unclear, but there are several hypotheses, such as cytokine storms and direct damage from leptospira endotoxins. Arrhythmias and cardiac disturbance in leptospirosis patients are associated with poor outcomes and higher mortality rates.
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C31. Closure of patent ductus arteriosus using intravenous paracetamol : a case series. Eur Heart J Suppl 2021. [DOI: 10.1093/eurheartjsupp/suab124.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Abstract
Background
Although patency of ductal arteriosus is essential for fetal circulation, postnatal ductal closure is critical for postnatal circulation adaptation in order to avoid pulmonary overcirculation with diminished circulation blood flow. Standard medical treatment for patent ductal arteriosus (PDA) consists of pharmacotheraphy and or surgical intervention.
Case Summary
We present 17 cases of PDA confirmed by echocardiography and was observed for ductal closure after 3 days of intravenous paracetamol intervention (10-15 mg/kg) given every 8 hours. The echocardiography evaluation of PDA status was conducted after those pharmacological intervention and divided based on the gestational age group. In the preterm groups (<36 weeks), 3 cases remained open, 3 cases were closed, and 1 case with reduced flow. In the aterm groups (36-42 weeks), 5 out of 8 cases were closed, while the other 3 showed reduced flow. In the postterm groups (>42 weeks), 1 case was closed and 1 case with reduced flow. Successful rate for PDA closure of each groups were 43%, 62,5% and 50%.
Discussion
Indomethacin and ibuprofen are standard treaments for PDA closure. However, they have some side effects such as acute renal failure and gastrointestinal complications. From this case series, paracetamol has a promising effect similar to indomethacin and ibuprofen in conducting PDA closure with less side effects. Paracetamol inhibits prostaglandin synthetase activity eventhough its precise mechanism of action remains controversial.
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C31. Closure of patent ductus arteriosus using intravenous paracetamol : a case series. Eur Heart J Suppl 2021. [DOI: 10.1093/eurheartjsupp/suab125.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Background
Although patency of ductal arteriosus is essential for fetal circulation, postnatal ductal closure is critical for postnatal circulation adaptation in order to avoid pulmonary overcirculation with diminished circulation blood flow. Standard medical treatment for patent ductal arteriosus (PDA) consists of pharmacotheraphy and or surgical intervention.
Case Summary
We present 17 cases of PDA confirmed by echocardiography and was observed for ductal closure after 3 days of intravenous paracetamol intervention (10-15 mg/kg) given every 8 hours. The echocardiography evaluation of PDA status was conducted after those pharmacological intervention and divided based on the gestational age group. In the preterm groups (<36 weeks), 3 cases remained open, 3 cases were closed, and 1 case with reduced flow. In the aterm groups (36-42 weeks), 5 out of 8 cases were closed, while the other 3 showed reduced flow. In the postterm groups (>42 weeks), 1 case was closed and 1 case with reduced flow. Successful rate for PDA closure of each groups were 43%, 62,5% and 50%.
Discussion
Indomethacin and ibuprofen are standard treaments for PDA closure. However, they have some side effects such as acute renal failure and gastrointestinal complications. From this case series, paracetamol has a promising effect similar to indomethacin and ibuprofen in conducting PDA closure with less side effects. Paracetamol inhibits prostaglandin synthetase activity eventhough its precise mechanism of action remains controversial.
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C87. Serial Cases of Cardiovascular Manifestation on Leptospirosis: A Tales of Unfortunate Events. Eur Heart J Suppl 2021. [DOI: 10.1093/eurheartjsupp/suab125.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Background
Leptospirosis is a zoonosis disease caused by Leptospira species. It's endemic and has become a major public health issue, especially in tropical regions. Clinical manifestation varies from mild or asymptomatic to severe multiple organ failure. We report cases of severe leptospirosis which complicates supraventricular tachycardia and myoperdicarditis from Universitas Sebelas Maret Academic Hospital.
Case Summary
The first case was a 44-year-old man referred from Internal Medicine Department with Leptospira infection with Weil’s disease. On 5th daycare, the patient was reporting had an episode of tachyarrhythmia, the ECG show SVT-AVNRT, there was no history of arrhythmic events before admitted to the hospital, the echocardiography was normal. The second case was a 67-year-old man who was referred from emergency department with shortness of breath, the ECG reveals diffuse ST-segment elevation in all limb and precordial leads with reciprocal ST-depression at aVR and V1, there was also downsloping of the PR and TP segment on precordial leads (Spodick’s sign), with normal ejection fraction on echocardiographic examination with pericardial thickening. Both patients have hsTroponin levels rose above the normal limit and serological testing found positive leptospira IgM.
Discussion
Severe leptospirosis can cause multi-organ dysfunction including cardiac involvement. The patients, in this case, suffered from leptospirosis with SVT-AVNRT and myopericarditis. The exact pathophysiology is still unclear, but there are several hypotheses, such as cytokine storms and direct damage from leptospira endotoxins. Arrhythmias and cardiac disturbance in leptospirosis patients are associated with poor outcomes and higher mortality rates.
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Bacterial strains integrated with surfactin molecules of Bacillus subtilis MTCC441 enrich nematocidal activity against Meloidogyne incognita. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:1027-1036. [PMID: 34263982 DOI: 10.1111/plb.13301] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Bacteria secrete lipopeptide (surfactin) molecules, which are known to act as natural antibiotics. Recently, research on lipopeptide molecules has grown because of their role in increasing resistance to plant pathogens. Isolated surfactin molecules at several concentrations, viz. 35, 25, 15 and 5 ppm, were used in an in vitro study for analysis of egg hatching inhibition and second-stage juvenile (J2) mortality of the nematode Meloidogyne incognita. Cell suspensions (1.2 × 108 cfu·ml-1 ) of both Bacillus subtilis (MTCC-441) and Pseudomonas putida (MTCC-102) were used in J2 inoculated tomato plants. Root-dip treatment of tomato seedlings with the crude lipopeptide (35 ppm) was also performed to analyse biocontrol potential. MALDI-TOF MS analysis was conducted to determine specific lipopeptide molecules. Data showed nematode egg mortality of 85% in the 35 ppm surfactin concentration 96 h after exposure. The maximum ovicidal activity was 83.97% after incubation with 35 ppm surfactin for the same exposure period. Plant growth attributes and biochemical parameters were significantly improved when bacterial cultures were applied before J2 inoculation of tomato seedlings. We also recorded a reduction in egg masses, nematode population and root galling. The J2 penetration into tomato roots was effective in the root-dip experiments. Surfactin mass peak was determined at m/z 1058 [M+Na]+ using MALDI-TOF MS. These results indicate that bacterial cell suspensions can be used as a potent and versatile source to deal with nematode infection and provide a rich source of bioactive compounds with antinematode activity.
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Bacillus cereus Bacteremia: An Unusual Case Following Food Poisoning. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Bacillus cereus is a spore-forming, gram-positive rod, well known for causing food poisoning. In addition, this bacterium often presents as a contaminant of blood cultures. Differentiating true bacteremia from contamination of blood samples is important as it has treatment implications. Early recognition is necessary, as it can cause septic shock if untreated. We present a challenging case of food poisoning with concomitant bacteremia in a young patient with a history of diabetes mellitus (DM), celiac disease, and new-onset chronic kidney disease (CKD).
Methods/Case Report
A 23-year-old adult male with a history of DM, new-onset CKD, and celiac disease presented with nausea, intermittent vomiting, and lower abdominal pain for 2 weeks. On initial evaluation, he had normal blood pressure but tachypnea and tachycardia. Physical examination was significant for left lower quadrant and flank tenderness. The symptoms were persistent and progressed to point that he could not tolerate meals due to vomiting. Two weeks earlier, he presented with similar complaints along with dysuria and was treated for suspected urinary tract infection with Co-trimoxazole. This time, further workup revealed normal white blood cell count (11.8 k/µL) with 81% neutrophils, elevated creatinine (3.56 mg/dL), blood urea nitrogen (49 mg/dL), and procalcitonin (0.39 ng/mL), with abnormal urinalysis showing increased turbidity, pyuria, and nitrituria. He was started on ceftriaxone, fluids, antiemetics and was admitted to the hospital for further management. The urine culture had no bacterial growth. Two sets of peripheral blood cultures (different sites at different times) had gram-positive rods which eventually turned out to be B. cereus, identified by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). Levofloxacin was started, and he reported improvement in nausea and vomiting by the next day of admission and was discharged.
Results (if a Case Study enter NA)
NA
Conclusion
Differentiating true B. cereus bacteremia from blood sample contamination is important. Additionally, no symptoms are specific for B. cereus-associated food poisoning, and the presence of risk factors doesn’t always favor this entity over other entities, hence adding difficulty to the diagnosis. A high index of suspicion is needed, as early intervention can prevent the development of life-threatening complications.
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Prevalence of Hepatitis B Virus Infection among Children with Liver Disease Admitted In Mymensingh Medical College Hospital. Mymensingh Med J 2021; 30:897-902. [PMID: 34605453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hepatitis B virus infection is an important cause of liver disease. Hepatitis B Virus may present with varying degree of severity. In older children, 5-10% cases leading to chronic liver disease, cirrhosis and hepatocellular carcinoma. This descriptive cross sectional study was done to assess the prevalence of Hepatitis B Virus infection among hospitalized children with liver disease in pediatric department of Mymensingh Medical College Hospital, Bangladesh from December 2015 to October 2016. All the children of both sexes having age between six months to twelve years admitted in the pediatric ward with acute or chronic liver disease were included in this study by purposive sampling. A written consent was obtained from legal guardian of children before inclusion. Ethical clearance was obtained from competent authority. A detailed history was taken from parents in each case according to pre-designed questionnaire about demography of the patients and the risk factors of the liver disease. A thorough clinical examination and available relevant investigations like serological testing for HBV infection was done in all patients. We had figure out the seropositivity of HBV among patients having liver disease by doing HBsAg and Anti-HBc IgM. Progress of the patient was monitored by daily clinical examinations and by investigating HBsAg and Anti-HBc IgM. Finally data analysis was done by SPSS version 21.0. Among total 100 patients most (44%) patients were in 7-10 years old and most (62%) of the participants were male. Acute liver disease was 58% cases and chronic liver disease was 42% cases. HBsAg was positive in 1 case among acute liver disease and 5 cases among chronic cases. Total 6 (six) patients were found positive for HBsAg. Anti HBc IgM was positive in 4 patients among acute liver disease. Among these Anti HBc IgM positive (4) patients only one had both HBsAg and Anti HBc IgM positive. So, four patients were confirming suffered from acute viral hepatitis because they had anti HBc IgM positive. On the contrary 5 patients suffered from chronic hepatitis by hepatitis B because they were only HBsAg positive. So, in this study 9 patients (9%) were confirming suffered from HBV infection. Possible transmission factors of hepatitis B were history of (H/O) blood transfusion/trauma/parenteral injection, H/O umbilical sepsis, H/O maternal illness/infection during pregnancy. HBV still is a major cause of morbidity. All the children with liver disease should be routinely tested for HBV.
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Methodology for Lost Gas Determination from Exploratory Coal Cores and Comparative Evaluation of the Accuracy of the Direct Method. ACS OMEGA 2021; 6:19695-19704. [PMID: 34368557 PMCID: PMC8340391 DOI: 10.1021/acsomega.1c02351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/06/2021] [Indexed: 05/08/2023]
Abstract
In the coal exploration of China, the commonly used direct method within 120 min has potential errors in lost gas calculation of deep coal seam for its complex geological conditions. The exploration of deep coal resources by drilling holes in Huainan of Eastern China offered an opportunity to starting research into developing a new method. A developed method with error analysis was constructed to estimate the lost gas using the total desorption process obtained from exploratory coal cores. The accuracy of the direct method was also evaluated comparatively. The result shows that the desorption curve of tested coal samples matches the fitted curve equation. Desorption temperature and the tectonic coal with associated pore characteristics significantly affect the variation of the adsorption characteristics and the estimation of lost gas. The direct method obviously underestimates the lost gas, and methodology using a new lost gas estimation procedure with additional residual gas allows for achieving relatively accurate results of the determination of gas content in coal seams. The calculated result of the new method is about 1.00-1.41 times that of the direct method. The error analysis of desorption results allowed us to determine the dependence between the time (retrieval time and desorption time) and determination method. The time used for desorption in the tank is allowed to extend to less than 400 min or more than 1000 min, which is very potentially important to accurately get the coalbed gas content for coring samples, especially deep exploratory cores for field application.
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Multiple optical features in binary-transition-metal borate glasses. OPTICAL AND QUANTUM ELECTRONICS 2021; 53:462. [DOI: 10.1007/s11082-021-03095-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/15/2021] [Indexed: 09/02/2023]
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Cysteamine (A lysosomotropic antioxidant) causes regression of atherosclerosis and improves liver and muscle function in LDL receptor deficient mice. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Feasibility of the TARGET-EFT trial in frail and pre-frail cardiovascular inpatients. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Older adults are at risk for hospital-acquired disability and deconditioning, often leading to the "post-hospitalization syndrome" of accelerated functional decline. We hypothesized that this syndrome could be prevented by a pragmatic multi-faceted intervention, and now report the initial experience and feasibility of our ongoing randomized clinical trial.
Methods
Patients admitted to the cardiovascular ward at a single academic center are screened with the Essential Frailty Toolset (EFT). Those ≥65 years with frailty (EFT: 3-5) or pre-frailty (EFT: 1-2) are eligible for the TARGET-EFT trial, in which they are randomly allocated to usual care or intervention. The intervention is targeted such that patients with physical weakness receive supervised exercise sessions (in addition to clinically-indicated physiotherapy), those with cognitive impairment receive stimulation activities, those with iron deficiency anemia receive intravenous iron sucrose, and those with malnutrition-related hypoalbuminemia receive protein supplements. The outcome is a composite score representing mobility, disability, activity, discomfort, and mood (EQ-5D-5L) ascertained by a blinded observer on the day of discharge and at 30 days post-hospitalization.
Results
To date, 77 out of a planned 144 patients have been randomized. The most common reasons for exclusion are age <65 years, expected discharge within <3 days and patient refusal. The median age is 80 years and length of stay is 8 days. In each group, 1 patient withdrew and 1 died. There were no intervention-related adverse events. Of the 39 intervention patients, 36 qualified for exercise and received an average of 6 sessions (46% of sessions were deferred because patients were away for tests, were bedrest post-procedures, or refused), 18 received cognitive stimulation, 15 received intravenous iron sucrose, and 16 received protein supplements.
Conclusion
The TARGET-EFT intervention is feasible and appears safe for frail and pre-frail patients hospitalized with acute cardiovascular disease. Given that nursing staff, physiotherapists, nutritionists and clinicians already address basic cognitive orientation, mobilization and nutritional/iron supplementation needs, it appears that adding targeted interventions for patients’ specific frailty deficits is feasible when shared amongst allied health professionals.
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Socio-demographic Profile of COVID-19 Patients and Difficulties Faced by Them while Testing RT-PCR: A Multi-center Cross-sectional Study. Mymensingh Med J 2021; 30:796-802. [PMID: 34226470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study was aimed to find out the socio-demographic profiles as well as difficulties of Reverse transcription polymerase chain reaction (RT-PCR) testing faced by Coronavirus Disease 2019 (COVID-19) patients. This cross-sectional study was conducted from 10th August to 7th September 2020. Data were collected by telephone interview using a pre-designed questionnaire after taking verbal consent from the participants. Out of 281 COVID-19 patients, 279 were diagnosed by RT-PCR; 10.3% were asymptomatic. Off them 67.6%were males, 24% were hospital staffs. Majority (66.2%) were from the non-city corporation area. History of recent contact with known COVID-19 patients was present in 56.9% cases. Fever (78.3%) and cough (58%) were the most common symptoms. One third of the patients faced difficulty to test RT-PCR for COVID-19. Sixteen percent patients complained of difficulty of getting serial for testing, the maximum waiting time was one week before giving samples. Thirty patients (10.8%) had to wait longer than usual time after reaching the center before giving sample. Hospital staffs were unable to co-operate in 2.5% of the patients while difficulty of managing transport to the hospital for suspected COVID-19 patient was an issue in 2.2% of the patients. Though testing was more difficult in city corporation areas (p=0.028), delay of getting test result was less (p<0.001). Maximum delay of getting test result was 10 days. Finding out the difficulties of COVID-19 testing will help to point out the issues behind these and will help to take necessary steps to tackle this matter. Testing rate can be increased to contain this highly contagious virus in this densely populated country.
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Risk Factors of Neonatal Sepsis in Neonatal Intensive Care Unit (NICU) of Mymensingh Medical College Hospital. Mymensingh Med J 2021; 30:671-677. [PMID: 34226454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Neonatal sepsis is associated with increased mortality and morbidity including prolonged hospital stay. Management of such cases is difficult, costly and need expert centers in many cases. Therefore, continued surveillance is mandatory to identify risk factors of neonatal sepsis which help optimizing its management. With the above idea, this cross-sectional descriptive study was conducted at the neonatal intensive care unit (NICU) in the department of Neonatology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from July 2017 to December 2017 to observe the effects of maternal and neonatal risk factors in the development of neonatal sepsis and to determine risk factors of neonatal sepsis. Ninety four neonates (0-28 days) who were admitted in NICU with suspected sepsis were included in this study by purposive sampling technique. After admission written informed consent from parents or guardians obtained and histories were obtained including perinatal history and full physical examination of the infants were done and septic screening were sent. All the relevant information was recorded in a pre-designed questionnaire and all data were compiled, tabulated and then analyzed by SPSS version 21.0. Among 94 cases, 72.3% were preterm and 27.6% were term. There was male predominance and male/ female ratio was 1.9:1. Most (76.6%) of the patient admitted within 72 hours of birth. Most (83%) had low birth weight (<2500gm). Most came from rural area 61(64.9%) and also from low income family 59(62.8%). Premature onset of labour 40(42.6%), PROM >18 hours 36(38.3%), vaginal route of delivery 52(55.3%), instrumental resuscitation 15(16%), prelacteal feeding 11(11.7%), bottle feeding 15(16%) were the antenatal, natal and postnatal risk factors in this study. Also the neonatal factors, like prematurity, resuscitation at birth and low APGAR score carried the significant risk of developing sepsis. Poor feeding, lethargy, respiratory distress, jaundice were more common presenting symptoms. Tachycardia, tachypnea, chest indrawing, cyanosis hypothermia, hyperthermia and apnoea were found as more common presenting sign of sepsis in this study. Based on result it is concluded that prolonged rupture of membrane>18 hours, vaginal route of delivery, preterm birth, instrumental resuscitation, prelacteal feeding, bottle feeding were the major perinatal risk factors in this study.
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Hassan MA, Ashoush MA, Ebrahim FM, Hady MME, Ahmad F, El-fattah ZMA. Multiple Optical Features In Binary-Transition-Metal Borate Glasses.. [DOI: 10.21203/rs.3.rs-583999/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
Glasses doped with transition metal (TM) ions exhibit rich optical transitions spanning the entire ultraviolet, visible, and infrared spectral regimes. Here we utilize the melt-quenching techniques to synthesis binary-TM-doped borate glasses of composition xCuO-(75-x)B2O3-24.7Li2O-0.3Cr2O3, with x = 0, 0.2, 1.0 and 2.0 mol %. We identify several optical transitions from Cr3+, Cr6+, and Cu2+ ions, the latter manifests at longer wavelengths and gains higher intensity with Cu additives. Despite Cr concentration being fixed, the Cr6+ peaks are quenched and Cr3+ signals are barely attenuated. This behavior rules out possible phase separation and suggests non-trivial interplay between the two TM ions and ligand, as supported by probing their oxidation states from electron spin resonance. The crystal field and Racah parameters followed an opposite behavior, while the optical band gap is reduced upon doping. These changes are correlated with structural modifications introduced by Cu additives, where we anticipate homogenous and preferential proximity of Cu-Cr ions within the network.
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A Pictorial Review of Ankle and Foot Coalitions Focused on Primary and Secondary Findings on Plain Films, CT, and MRI. Semin Musculoskelet Radiol 2021. [DOI: 10.1055/s-0041-1731528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Molecular Docking Unveils Prospective Inhibitors for the SARS-COV-2 Main Protease. SAINS MALAYS 2021. [DOI: 10.17576/jsm-2021-5005-26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The recent emergence of a novel coronavirus strain (SARS-CoV-2) has stimulated global efforts to identify potential drugs that target proteins expressed by this novel coronavirus. Among these, the main protease of SARS-CoV-2 (3CL-protease (3CLPro), also known as (MPro) is one of the best choices for the scientists to target. 3CLPro is involved in the processing of polyproteins into mature non-structural viral proteins. An X-ray crystallographic structure (PDB ID 6LU7) of this protein was obtained from the PDB database. ChemDiv libraries of ~80,000 antiviral and ~13,000 coronavirus-targeting molecules were screened against the 3D structure of 3CLPro of SARS-CoV-2. We have identified a panel of molecules that showed an activity and potentially block the active site of the SARS-CoV-2 main protease. These molecules can be investigated further to develop effective virus-inhibiting molecules to treat this highly distressing disease, causing extreme unrest across the globe.
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Green synthesis of silver nanoclusters via Melia azedarach plant and their potential towards catalytic reduction of 4-nitrophenol. B CHEM SOC ETHIOPIA 2021. [DOI: 10.4314/bcse.v35i1.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Biomolecules present in the plant extracts have potential to reduce metal ions to nanoclusters by a single-step green synthesis approach. In the current study, we have synthesized the silver nanoclusters (AgNCs) from a medicinal plant, Melia azedarach and studied their catalytic activity toward the reduction of 4-nitophenol to 4-aminophenol and organic dyes. Morover, the phytochemical analysis of the plant extract was carried out in order to determine the bioactive compounds present in it. Metallic nature of the synthesized AgNCs was verified by X-ray diffraction study, while their morphology and size of was confirmed by transmission electron microscopy and Zetasizer, respectively. The study revealed that they were 56±2 nm in size and formed clusters. Fourier transformed infrared spectroscopy gives information about the different functional groups present in synthesized these NCs. Furthermore, the important catalytic applications, such as catalytic reduction of 4-nitrophenol in the presence of mild reducing agent NaBH4 and the catalytic degradation of organic dyes was monitored by FTIR. Therefore, these results indicate that the obtained nanomaterials have important applications in industrial areas.
KEY WORDS: Green synthesis, Silver nanoclusters, Catalytic reduction, Characterization
Bull. Chem. Soc. Ethiop. 2021, 35(1), 197-206.
DOI: https://dx.doi.org/10.4314/bcse.v35i1.17
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Seed priming with gibberellic acid induces high salinity tolerance in Pisum sativum through antioxidants, secondary metabolites and up-regulation of antiporter genes. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23 Suppl 1:113-121. [PMID: 32989871 DOI: 10.1111/plb.13187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
Salinity is one of the major abiotic stresses that limit productivity of pulse crops all over the world. Seed priming with phytohormone(s) is one of the most promising, authentic and cost-effective methods to mitigate the deleterious effect of salinity. The study was conducted to investigate potential of seed priming with gibberellic acid (GA3 ) to cope up with the adverse effects of salinity (0, 100, 200 and 300 mm NaCl) in pea (Pisum sativum L.) seedlings. There were different responses to salinity, which induced oxidative stress, higher accumulation of Na+ in shoots and roots and inhibition of photosynthetic traits. However, seed priming with GA3 showed promising effects on physiological traits under salinity stress and alleviated the adverse effects of salinity by inducing the antioxidant system, proline production, total phenol and flavonoid content and regulating ion homeostasis, along with up-regulation of Na+ /H+ antiporters (SOS1 and NHX1). Plants adapt and prevent high salt accumulation by inducing expression of Na+ /H+ antiporter (SOS1 and NHX1) proteins that enhance Na+ sequestration. Thus, seed priming with GA3 is important in alleviation of high salinity stress and can be used as a criterion for developing salt-tolerant cultivars.
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