The impact of traditional plants and their secondary metabolites in the discovery of COVID-19 treatment

2020 ◽  
Vol 26 ◽  
Author(s):  
Shabana Bibi ◽  
Ayesha Sarfraz ◽  
Ghazala Mustafa ◽  
Zeeshan Ahmed ◽  
Muhammad Aurang Zeb ◽  
...  

Background: Coronavirus Disease-2019 belongs to the family of viruses which cause a serious pneumonia along with fever, breathing issues and infection of lungs for the first time in China and later spread worldwide. Objective: Several studies and clinical trials have been conducted to identify potential drugs and vaccines for Coronavirus Disease-2019. The present study listed natural secondary metabolites identified from plant sources with antiviral properties and could be safer and tolerable treatment for Coronavirus Disease-2019. Methods: A comprehensive search on the reported studies was conducted using different search engine such as Google scholar, SciFinder, Sciencedirect, Medline PubMed, and Scopus for the collection of research articles based on plantderived secondary metabolites, herbal extracts, and traditional medicine for coronavirus infections. Results: Status of COVID-19 worldwide and information of important molecular targets involved in COVID-19 is described and through literature search, is highlighted that numerous plant species and their extracts possess antiviral properties and studied with respect to Coronavirus treatments. Chemical information, plant source, test system type with mechanism of action for each secondary metabolite is also mentioned in this review paper. Conclusion: The present review has listed plants that have presented antiviral potential in the previous coronavirus pandemics and their secondary metabolites which could be significant for the development of novel and a safer drug which could prevent and cure coronavirus infection worldwide.

2015 ◽  
Vol 3 (4) ◽  
pp. 721-726
Author(s):  
Md. Moinul Abedin Shuvo ◽  
Mohammad AL - Mamun ◽  
Tuhina Chowdhury ◽  
Nurul Absar ◽  
Md. Hasanuzzaman

Stevia rebaudiana, belongs to the family of Asteraceae, is a perennial and medicinal shrub. It’s leaves dry powder widely used as a natural sweetener which has no calories but reported to be 50– 300 times sweetener as sweet as sugar, that are said to be having insulin balancing properties without any side effects. This research was first time conducted in Bangladesh where a quantitative analysis were performed for determining the major constituents of in vitro propagated Stevia rebaudiana plant leaves dry powder that was prepared through oven dry after sun dry. The analysis revealed the powder as mild acidic (PH 5.345). Total chlorophyll contents were found to be 0.845mg% where chlorophyll–a and -b were 0.088 and 0.761 mg% respectively.  The major macro nutrients such as ash, crude fiber, total carbohydrate, total protein and fat were determined at the amount of 7.05, 10.5, 53.52, 13.13 and 3.55 gm% respectively where the micro nutrients like Iron (Fe), Sodium (Na), Potassium (K), Calcium (Ca), Magnesium (Mg), Phosphorus (P) and Chloride (Cl) were found at the amount of 34.2, 184.3, 2500, 534.43, 465.34, 304.7 and 49.6 mg% accordingly.  Screening for secondary metabolites showed the presence of alkaloids, flavonoids, saponins and tannins as the amount of 2.83, 17.20, 6.69 and 5.84 mg% respectively in dry powder. These findings also have been compared with the other reported values on Stevia from different countries of the world.   Int J Appl Sci Biotechnol, Vol 3(4): 721-726


Crystals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 439 ◽  
Author(s):  
Edward J. Higgins ◽  
Phil J. Hasnip ◽  
Matt I.J. Probert

We introduce a number of extensions and enhancements to a genetic algorithm for crystal structure prediction, to make it suitable to study magnetic systems. The coupling between magnetic properties and crystal structure means that it is essential to take a holistic approach, and we present for the first time, a genetic algorithm that performs a simultaneous global optimisation of both magnetic structure and crystal structure. We first illustrate the power of this approach on a novel test system—the magnetic Lennard–Jones potential—which we define. Then we study the complex interface structures found at the junction of a Heusler alloy and a semiconductor substrate as found in a proposed spintronic device and show the impact of the magnetic interface structure on the device performance.


2021 ◽  
Vol 1 (4) ◽  
pp. 72-81
Author(s):  
Alexey Smirnov ◽  
Marina Khramova

The article presents the results of a sociological survey aimed at studying the impact of the pandemic of the new coronavirus infection COVID-19 on the reproductive attitudes of Russian women. The results of the survey showed that 19% of respondents postponed the birth of children due to the pandemic. 75% of respondents were not affected by the pandemic, since they did not plan to have a child, about 6% gave birth or will give birth to a child, as they wanted. Also, for 16% of respondents, the number of conflicts in the family has increased significantly, which may indicate the likelihood of a breakdown in relations, which will also negatively affect the demographic situation in the country. At the same time, about 63% of respondents noted that their incomes have become lower, for 31% of respondents, the income level has not changed, and for 6%, income has increased. Low family incomes also have a negative impact on the desire to have children. Since the beginning of a pandemic in Russia was announced in March 2020, due to physiological reasons, changes in the reproductive attitudes of women are likely to be noticeable only in statistics for 2021. since 2020, the number of births has decreased by 1%, the number of marriages has increased by 34%, and the number of divorces has increased by 33%. Thus, at the moment, the operational data of Rosstat do not agree with the results of our sociological survey. The reason could be that the survey was conducted on the Internet, and respondents who were more worried about the pandemic than the average Russian women of reproductive age showed an increased interest in it, so the proportion of women who postpone the birth of children due to the pandemic, according to the survey, may turn out to be higher. than the average in Russia.


1992 ◽  
Vol 124 (4) ◽  
pp. 637-723 ◽  
Author(s):  
Ian M. Smith

AbstractMorphological and distributional data are presented for North American species of the family Chappuisididae, including members of the genera Chappuisides Szalay (subfamily Chappuisidinae), Uchidastygacarus Imamura (subfamily Uchidastygacarinae), and Morimotacarus Imamura and Yachatsia Cook (subfamily Morimotacarinae). The phylogenetic relationships of mites in these subfamilies with other Arrenuroidea are discussed, leading to the conclusion that mites previously placed in the families Chappuisididae and Uchidastygacaridae Imamura probably represent a single, holophyletic group. As a result, the family Chappuisididae is redefined, and four subfamilies are recognized, namely Chappuisidinae, Uchidastygacarinae Imamura, Tsushimacarinae Cook, and Morimotacarinae Imamura. The name Uchidastygacaridae is placed in synonymy with Chappuisididae. New diagnoses are proposed for the family and subfamilies.Adults of Chappuisides eremitus Cook are redescribed, and adults of seven new species, namely C. anomalus sp.nov., C. neomexicanus sp.nov., C. acadianus sp.nov., C. cooki sp.nov., C. occidentalis sp.nov., C. californicus sp.nov., and C. oregonensis sp. nov., are described for the first time. Deutonymphs of C. acadianus, C. cooki, and C. occidentalis are also described. A new diagnosis is proposed for the genus Chappuisides and subgeneric concepts are reviewed critically.Adults of Uchidastygacarus (Imamurastygacarus) ovalis Cook, U. (s.s.) imamurai Cook, and U. (s.s.) acadiensis Smith are redescribed, largely on the basis of recently collected specimens including the first known adult males of U. (I.) ovalis. Adult males of U. (s.s.) magnificus sp.nov., adult females of U. virginiensis sp.nov., and deutonymphs and adults of both sexes of U. appalachianus sp.nov. are described for the first time. New diagnoses are proposed for the genus Uchidastygacarus and its subgenera.Adults of Morimotacarus nearcticus sp.nov., the first known nearctic species of the genus, are described and adults of Yachatsia mideopsoides Cook are redescribed. Deutonymphs of both of these species are described for the first time. The name Yachatsia euforma Habeeb is placed in synonymy with Y. mideopsoides based on study of type specimens and assessment of variability within populations. New diagnoses are proposed for the genera of Morimotacarinae.A phylogenetic framework for Chappuisididae is outlined and discussed. New distributional data are presented for North American species, permitting the first comprehensive attempt to assess the zoogeography of the family. The family probably differentiated from early derivative mideopsiform arrenuroid stock similar to Nudomideopsidae in Laurasia during the late Cretaceous or early Tertiary. Extant subfamilies apparently originated early in Tertiary times, and the clades that include modern genera dispersed throughout western North America and eastern Asia, and in some cases more extensively on both continents, between the early Tertiary and the Pleistocene. Climatic cooling in late Tertiary times, culminating in glacial episodes during the Pleistocene, resulted in displacement of chappuisidid taxa to various refugial areas south of continental ice sheets. Modern species are in the process of invading recently deglaciated areas in both eastern and western North America, but at differing rates that reflect their vagility, cold-tolerance, and ability to colonize newly established interstitial habitats. Chappuisididae have considerable potential value as indicators of the impact of environmental changes on interstitial freshwater ecosystems.


2007 ◽  
Author(s):  
Sharon B. Hamill ◽  
Tayari Shorter ◽  
Sarah Singleton ◽  
Carrie Page ◽  
Tabitha Pierce
Keyword(s):  

2018 ◽  
Vol 8 (3) ◽  
pp. 247-266
Author(s):  
Michelle L. Wilson

Initially, Oliver Twist (1839) might seem representative of the archetypal male social plot, following an orphan and finding him a place by discovering the father and settling the boy within his inheritance. But Agnes Fleming haunts this narrative, undoing its neat, linear transmission. This reconsideration of maternal inheritance and plot in the novel occurs against the backdrop of legal and social change. I extend the critical consideration of the novel's relationship to the New Poor Law by thinking about its reflection on the bastardy clauses. And here, of course, is where the mother enters. Under the bastardy clauses, the responsibility for economic maintenance of bastard children was, for the first time, legally assigned to the mother, relieving the father of any and all obligation. Oliver Twist manages to critique the bastardy clauses for their release of the father, while simultaneously embracing the placement of the mother at the head of the family line. Both Oliver and the novel thus suggest that it is the mother's story that matters, her name through which we find our own. And by containing both plots – that of the father and the mother – Oliver Twist reveals the violence implicit in traditional modes of inheritance in the novel and under the law.


2020 ◽  
Vol 1 (19) ◽  
pp. 39-46
Author(s):  
T. V. Pinchuk ◽  
N. V. Orlova ◽  
T. G. Suranova ◽  
T. I. Bonkalo

At the end of 2019, a new coronavirus (SARS-CoV-2) was discovered in China, causing the coronavirus infection COVID-19. The ongoing COVID-19 pandemic poses a major challenge to health systems around the world. There is still little information on how infection affects liver function and the significance of pre-existing liver disease as a risk factor for infection and severe COVID-19. In addition, some drugs used to treat the new coronavirus infection are hepatotoxic. In this article, we analyze data on the impact of COVID-19 on liver function, as well as on the course and outcome of COVID-19 in patients with liver disease, including hepatocellular carcinoma, or those on immunosuppressive therapy after liver transplantation.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1198-1201
Author(s):  
Syed Yasir Afaque

In December 2019, a unique coronavirus infection, SARS-CoV-2, was first identified in the province of Wuhan in China. Since then, it spread rapidly all over the world and has been responsible for a large number of morbidity and mortality among humans. According to a latest study, Diabetes mellitus, heart diseases, Hypertension etc. are being considered important risk factors for the development of this infection and is also associated with unfavorable outcomes in these patients. There is little evidence concerning the trail back of these patients possibly because of a small number of participants and people who experienced primary composite outcomes (such as admission in the ICU, usage of machine-driven ventilation or even fatality of these patients). Until now, there are no academic findings that have proven independent prognostic value of diabetes on death in the novel Coronavirus patients. However, there are several conjectures linking Diabetes with the impact as well as progression of COVID-19 in these patients. The aim of this review is to acknowledge about the association amongst Diabetes and the novel Coronavirus and the result of the infection in such patients.


2020 ◽  
Vol 7 (2) ◽  
pp. 247-255
Author(s):  
Maria Magdalena Setyaningsih ◽  
Emy Sutiyarsih

Kehamilan remaja adalah kehamilan yang terjadi pada remaja berusia kurang dari 20 tahunan. Kehamilan remaja memberikan banyak kerugian bagi kesehatan, mental dan psikologis, kesejahteraan ekonomi dan peluang karier, kemiskinan dan prospek kehidupan masa depan remaja. Tujuan penelitian mengidentifikasi faktor determinan yang melatarbelakangi terjadinya kehamilan remaja. Jenis penelitian adalah penelitian analitik kategorik jenis survei kuantitatif dengan desain case control. Populasi semua perempuan yang bertempat tinggal di wilayah dusun Wonosari, Sukosari, dan Krajan Pandansari dan pernah/sedang hamil pertama kali pada usia kurang dari 20 tahun. Teknik pengambilan sampel cluster random sampling besar sampel 73. Berdasarkan hasil model akhir analisis multivariat, diketahui bahwa variabel pendidikan, riwayat kehamilan remaja pada keluarga dan usia menikah merupakan variabel yang berhubungan dengan kejadian kehamilan remaja setelah dikontrol oleh variabel akses informasi, responden berpendidikan rendah memiliki peluang 20,8 kali lebih tinggi, responden yang memiliki riwayat kehamilan remaja pada keluarga memiliki peluang 14,9 kali lebih tinggi, responden yang menikah pada usia <20 tahun memiliki peluang 12,1 kali lebih tinggi, responden dengan pemahaman yang kurang baik terkait penggunaan kondom memiliki peluang 5,9 kali lebih tinggi untuk terjadi kehamilan remaja. Oleh karena itu perlu dibangun karakter buiding, sosial karakter suport untuk para ibu remaja dan keluarga sehingga terbangun interaksi yang baik dalam keluarga yang dilandasi dengan pendidikan dan pemahaman yang baik tentang Pendidikan seksualitas. Teen pregnancy is a pregnancy that occurs in adolescents aged less than 20 years old. Teen pregnancy provides many disadvantages for health, mental, psychological, economic well-being, career opportunities, poverty, and the future life. The aim of the study was to identify the determinants underlying teen pregnancy incidence. This study was a quantitative study with categorical analytic method. The study design used a case control with two comparison groups. The groups were control group and case group. The population in this study was all women who lived in the Wonosari, Sukosari, and Krajan Pandansari district and had or were pregnant for the first time at the age of less than 20 years old. Seventy three respondents were recruited using cluster sampling technique. The case group consists of women who were or had pregnant for the first time at the age of less than 20 years old and their children are currently aged ≤ 1 years old. The control group consists of women who were pregnant for the first time at the age of > 20 years old. The data was collected using a questionnaire. The findings showed that education, history of teen pregnancy in family and the age of marriage were related to the incidence of teen pregnancy after being controlled by information access. Low-educated respondents had 20.8 times higher chance of experiencing teen pregnancy; respondents with a history of teen pregnancy in the family had 4.9 times higher chance of experiencing teen pregnancy; respondents who were married at the age of < 20 years old had 12.1 times higher chance of experiencing teen pregnancy; respondents with poor understanding of condom use had 5.9 times higher chance of teenage pregnancy. In conclusion, the findings suggest to build good interactions in the family based on education and a good understanding of sex education.


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