Aparupa Bose Mazumdar Ghosh and Sharmila Chattopadhyay*
Published on: 27th March, 2024
Phyllanthus amarus Schum. and Thonn., a plant of substantial medicinal significance, is known for its usage in the ‘Ayurvedic’ system of medicine for over 2000 years. This herb grows throughout the world including India. P. amarus along with other species of its genus has been a vital part of several herbal formulations available in the Indian market under the trade name Bhuiamlaki. Several pharmacognostic evaluations over the years established the genus Phyllanthus of great commercial value. Ethnopharmacological studies conducted with P. amarus to date have shown its diverse therapeutic usage globally. This owes to the vast array of secondary metabolites present in the herb, substantially in the leaf tissue. Different analytical and phytochemistry studies performed across the globe revealed that P. amarus is a hub of various classes of secondary metabolites viz. lignans like phyllanthin, hypophyllanthin, flavonoids, alkaloids, triterpenes, sterols, volatile oil, ellagitannins including simple and complex tannins, etc. Different analytical techniques have been employed over the past years for isolating and studying these varied secondary metabolites. Further, bioactivities and pharmacological properties of P. amarus that were mainly due to the presence of these wide arrays of secondary metabolites have also been explored extensively across the globe by several research groups. This plant has also been explored at molecular and transcriptome level, although relatively lesser but its extensive molecular and transcriptome analysis have only been performed from our lab. Thus, P. amarus has considerable potential to be explored in the future as a significant therapeutic source not only in the traditional medicinal system but also in the modern pharmaceutical industry.
Background: Human 30kb coronaviruses entered through the ACE-2 receptors causing fibrosis of the lungs and causing six million deaths worldwide. Here, we have investigated the mutations, deletions and insertions of the recent JN.1 omicron coronaviruses to demonstrate that coronaviruses have reached the pre-elimination stage. Methods: We multi-aligned the genomes of recent JN.1 variants using NCBI Virus Portal and CLUSTAL-Omega. The spike proteins are multi-aligned using MultAlin software and CLUSTAL-Omega.Results: The 17MPLF spike insertion was confirmed to compensate 24LPP, 31S, 69HV, 145Y, 211N and 483V deletions. The 49nt deletions in the 3’-UTR were found in 4997 JN.1 sequences although 26nt deletion was initiated previously in JN.1 as well as BA.5, BF.7, BQ.1 and XBB.1.5 omicron viruses. We first compare 3-D structures of spike proteins with or without 17MPLF four amino acids insertion and nine amino acids deletions using SWISS MODELLING. The JN.1 viruses caused a more stable trimeric spike involving Thr342, Lys436, Lys440, His441, Ser442, Gly443, Tyr445, Lys479, Ser489, Tyr490, Arg493, Pro494, Thr495, and Gln501 amino acids to interact with ACE-2 receptors. The FLiRT spike mutations were found in most KP.2 variants and other changes occurred at the NH2 terminus.Conclusion: We claimed that pre-death changes were initiated in JN.1 COVID-19 lineages and computer simulation showed that the Howard spike with 17MPLF spike insertion appeared more stable than the Oppentrons-spike without 17MPLF insertion. Surely, conflicts of COVID-19 spike sequences must be resolved.
Background:Topical therapy with antimicrobial agents is used in otitis treatment. Due to increase of antibiotic resistance, new strategies are needed. Antiseptics are used but they may induce contact dermatitis. Natural antimicrobial peptides may represent future effective drugs.
Objectives:The objectives were to test the efficacy of an 11% lactoferricin otological solution (LCF) in bacterial and yeasts otic overgrowth and compare LCF with a commercial one containing chlorhexidine (CLX) 0.05%.
Materials and methods:Forty-one dogs diagnosed with bacterial or yeasts otitis overgrowths were included according to general good practice. They were randomly assigned to lactoferricin or chlorhexidine group for treatment. Otological solution were applied twice a day for a week and then daily for another week. Clinical and cytological score was assessed at day 1 and day 14. At the end of the study, the owners had to express an opinion on the overall efficacy of the products. Statistical analyses were performed using Wilkoxon’s test and T test for paired samples. Results in lesional and cytological score were significative with a p<0.05.
Results:Forty dogs completed the study. All cases, receiving lactoferricin or chlorhexidine, were successfully treated with clinical signs remission and regression of infection (p<0.05). The owners’ judgment was good in 87%, mild in 13% for LCF group. For CLX they scored good in 41%, mild in 24% and unuseful in 35% of cases.
Conclusions:Lactoferricin, an antimicrobial natural peptide, showed the same efficacy of chlorhexidine in the treatment of otitis characterized by bacterial or/and yeast overgrowth.
Sheep are not native to Australia and were originally imported; 44 sheep were among the animals transported from Great Britain to the penal colony established on the east coast of Terra Australis in January 1788 http://firstfleetfelowshp.org.au.
The following brief account of the history of wool in Australia is taken from “The Australian Merino” which began;
The Australian Merino…comprised one of the greatest creative expressions of domestic animal species by and for mankind…one of the greatest contributions to the world economy [1].
These original sheep were for human provisions and consisted of fat-tailed native sheep from the Cape of Good Hope, but the primary source of sheep for the first three or four decades of Australia’s history were from Bengal, the closest British colony to Australia.
Narimane Kebieche*, Farzana Liakath Ali, Seungae Yim, Mohamed Ali, Claude Lambert and Rachid Soulimani
Published on: 15th November, 2024
Neurotoxicity is increasingly recognized as a critical factor impacting long-term health, with growing evidence linking it to both neurodevelopmental and neurodegenerative diseases. Pesticides, widely used in agriculture and industry, have emerged as significant contributors to neurotoxic risk, given their capacity to disrupt key neurodevelopmental processes at low exposure levels. As conventional animal models present limitations in interspecies translation, human-derived neuron-based in vitro screening strategies are urgently needed to assess potential toxicants accurately. Human-induced pluripotent stem cells (hiPSCs) offer an innovative and scalable source for human-specific neuronal models that complement traditional animal-based approaches and support the development of predictive assays for neurotoxicity. Recent various stem cell models, including 2D cultures, 3D organoids, and microfluidic systems, are now available, advancing predictive neurotoxicology by simulating key aspects of human neural development and function. With the integration of High-Throughput (HT) and High-Content (HC) screening methodologies, these hiPSC-based systems enable efficient, large-scale evaluation of chemical effects on neural cells, enhancing our ability to detect early biomarkers of neurotoxic effects. Identifying early biomarkers of neurotoxic is essential to developing therapeutic interventions before irreversible damage occurs. This is particularly crucial in the context of developmental neurotoxicity, where early exposure to toxicants can have lifelong consequences. This review specifically presents an in-depth overview of the current progress in hiPSC-derived neural models and their applications in neurotoxicity testing, with a specific focus on their utility in assessing pesticide-induced neurotoxicity. Emphasizing future research priorities, we highlight the potential of these models to transform predictive toxicology, offering more human-relevant assessments and advancing the field toward a more precise evaluation of environmental neurotoxicants.
Giardia is the most common pathogenic intestinal flagellate protozoan in the world. The most studied species is Giardia lamblia (syn. Giardia intestinalis, Giardia duodenalis) that infects mammals, including humans. About the other seven species the scientific literature is very scarce and little is known about its characteristics and epidemiological importance. The exception is Giardia muris species that is frequently used in experimental infection to attempt to understand the parasite-host interaction in G. lamblia infection [1].
Emerging evidence indicates that micronutrient deficiency could play a significant role in the pathogenesis and progression of many chronic diseases including diabetes mellitus, hypertension, obesity, dyslipidemia, hyperuricemia, kidney disease, cancer, anemia and other cardio-metabolic and neurodegenerative diseases through the induction of Insulin resistance (IR). However, there are still gaps in our scientific knowledge regarding the links between micronutrient deficiencies, IR, and cardio metabolic disorders. This review provides current information on recent advances and a global perspective regarding the relationship between micronutrient deficiency, IR, and cardio metabolic disorders. Empirical evidence indicates that deficiencies in either micronutrients associated with insulin activity (such as Chromium, manganese, magnesium, and iron) or antioxidant enzyme cofactors (such as vitamin A, copper, zinc, and manganese) could impact several physiological processes leading to a cascade of metabolic and biochemical derangements such as B-cell apoptosis, loss of islet cell mass, defective tyrosine kinase activity, oxidative stress, pancreatic β-cell dysfunction, reduction in lean body mass, defective insulin signaling mechanism, elevated protein kinase C activity, and excess intracellular calcium. Collaboratively, these states of metabolic malfunctioning are associated with IR, which triggers the onset of many cardio metabolic diseases. Undoubtedly, the prevention of micronutrient deficiency may indeed ameliorate the incidence of IR and cardio-metabolic disorders in those at risk and in the general population.
Zucchini yellow mosaic potyvirus (ZYMV) was first identified in northern Italy. It likes other species of the family Potyuiridue. ZYMV has been recorded in many countries since 1981. The efficient intercontinental spread of the virus can be explained by international trading of infected seeds. Since coat protein (CP) analysis has become a primary method for taxonomic assignment of potyviruses the aims were to characterize this genomic region of ZYMV originating from virus-infected cucurbitaceous seedlings. Virus infection in cucurbits is typically associated with mosaic symptoms on leaves and lumpy, distorted fruit. The range of symptoms produced by each virus can overlap and plants are commonly infected by more than one virus at once. The viruses are spread by many species of aphids moving through or within a crop. Control options include: destroying old cucurbit crops as soon as harvesting is completed destroying weeds and volunteer cucurbits, within and around crops as these harbor the viruses and/or the aphids separating new crops from maturing crops as these will have high levels of virus infection avoiding overlapping crops of cucurbits.
Citrus Vein Phloem Degeneration (CVPD) is the main disease of citrus plants in Indonesia. This disease is caused by Gram negative bacteria, Candidatus Liberibacter asiaticus. Almost all citrus plants are susceptible to this disease and only a few citrus plants such as seedless lime (Citrus aurantiifolia var. Seedles) and kinkit citrus (Triphacia trifoliate) are tolerant. Both of these citrus plants store DNA fragments of CVPDr which are considered as tolerant factors (841 bp). However, this study found that CVPDr DNA fragments were also found in citrus plants susceptible to CVPD disease. This research aims to study DNA polymorphisms from CVPDr DNA fragments in citrus plants on the island of Bali. The PCR test showed T. trifoliate and C. aurantifolia that are resistant to CVPD and Pylogenically are in the same group as C. nobilis var Buleleng, C. reticulate var. Slayer Buleleng, and C. amblicarpa. On the other hand, citrus plants susceptible to CVPD are in a different group. There are two types of citrus plants not containing CVPDr DNA fragments, namely C. nobilis var. Petang and M. paniculata L. These results indicate that the CVPDr DNA fragment polymorphism is a factor tolerant to CVPD disease.
An experimental study of fluoride (F) accumulation in Abelmoschus esculentus var. Soh-198 and its effect on the growth and crop yield was conducted in a pot experiment. Eight different concentrations of F in the water were used for irrigation ranging from 2 to 14 ppm with distilled water as the control. Potentiometric determinations of the F content in different parts of the plant were made 45, 60, and 120 days after sowing the seeds (first, second, and third harvest, respectively). At the third harvest the highest mean plant part concentrations of F were recorded with 14 ppm F in the irrigation water: 9.0638 mg/kg in the roots, 5.6896 mg/kg in shoot, 4.5348 mg/kg in leaf and 3.563 mg/kg in fruit.
The Clinical Journal of Obstetrics and Gynecology is an open access journal focused on scientific knowledge publication with emphasis laid on the fields of Gynecology and Obstetrics. Their services to...
Carole Assontsa
The service from the journal staff has been excellent.
Andy Smith
Submission of paper was smooth, the review process was fast. I had excellent communication and on time response from the editor.
Ekiti State University Teaching Hospital, Nigeria
Ayokunle Dada
In my opinion, you provide a very fast and practical service.
Ahmet Eroglu
Great, thank you! It was very efficient working w/ your group. Very thorough reviews (i.e., plagiarism, peer, etc.). Would certainly recommend that future authors consider working w/ your group.
David W Brett
I do appreciate for your service including submission, analysis, review, editorial and publishing process. I believe these esteemed journal enlighten the science with its high-quality personel.
Bora Uysal
I am delighted and satisfied with. Heighten Science Publications as my manuscript was thoroughly assessed and published on time without delay. Keep up the good work.
Ido-Ekiti/Afe Babalola University, Nigeria
Dr. Shuaib Kayode Aremu
Submission of paper was smooth, the review process was fast. I had excellent communication and on time response from the editor.
Ayokunle Dada
I would like to thank this journal for publishing my Research Article. Something I really appreciate about this journal is, they did not take much time from the day of Submission to the publishing dat...
Ayush Chandra
"This is my first time publishing with the journal/publisher. I am impressed at the promptness of the publishing staff and the professionalism displayed. Thank you for encouraging young researchers li...
HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."