دكتوراه
د. رنا نصور
- هيئة تدريسية
EFFECTS OF ULTRAVIOLET-B RADIATION IN PLANT PHYSIOLOGY
The Journal of National Agricultural and Food Centre / 11 - مارس - 2021
Over the past few decades, anthropogenic activities contributed to the depletion of the ozone layer, which increased the levels of solar ultraviolet-B (UV-B) radiation reaching the Earth`s surface. Generally, UV-B is harmful to all living organisms. It damages the cell`s Deoxyribonucleic acid (DNA), proteins, and lipids, and as a consequence, it affects the bio-membranes negatively. In this review, we summarize the major effects of UV-B in the plant`s main molecules and physiological reactions, in addition to the possible defence mechanisms against UV-B including accumulating UV-B absorbing pigments to alleviate the harmful impact of UV-B.
تحميل الملفAnthocyanin pigments: Structure and biological importance
Journal of Chemical and Pharmaceutical Sciences / 1 - ديسمبر - 2020
Anthocyanins are coloured water-soluble pigments representing one of the major subclasses of compounds. They rarely exist in nature as free aglycons, instead, they attach to one or more sugar moieties. Anthocyanins are found within different plant organs; flowers, leaves, fruits, roots, tubers and grains. They appear in different attractive colours depending on their structure, pH, and other factors. These compounds gained a lot of attention in the last few years as food colourants replacing chemical dyes, besides their role in enhancing plant tolerance against many abiotic stresses such as salinity, drought, excessive light, ultraviolet radiation and cold stress. Besides, previous studies demonstrated the importance of anthocyanins in human health and their protective properties against chronic diseases.
تحميل الملفStudy In Epidemiology of Cancer In Syrian Arab Republic Between 2008-2012
British Journal Of Medical and Health Research / 17 - يوليو - 2021
The study included an epidemiological survey of cancer cases in the Syrian Arab Republic for the period between 2008-2012. The study was conducted according to international standards established by the International Agency for Research on Cancer (IARC) and the International Association of Cancer Records (IACR). The data were collected and classified according to age, gender, place of incidence and city of residence. Then they were scheduled, graphically illustrated, and statistically analyzed. 46447 new cancer cases were reported during the period of study; 24240 cases among males, 22207 cases among females and 2008 cases between children (<15 years old). The data showed an increase in the new reported cases between 2008 and 2010, and that increment was followed by a decline in the total reported cases until 2012. The survey indicated that breast cancer was the most common type of cancer among females,
تحميل الملفSocietal Usage Of Antibiotics In The Syrian Coastal Region During 2021
British Journal Of Medical and Health Research / 4 - أغسطس - 2021
This study is based on an electronic questionnaire about the use of antibiotics. It investigates the knowledge about antibiotics and their resistance among the Syrian coastal people. 639 individuals responded to the questionnaire. The results show that there is fairly good information about those drugs. Yet, there is much to be done to spread the awareness in the whole community, especially with regards to enact laws that prohibit antibiotics purchase without a prescription. Doctors on the other hand, should give antibiotics only on necessity. People also have to be well educated about antibiotics resistance, which is an inevitable consequence to the misuse of those drugs.
تحميل الملفCOVID-19 INCIDENCES AND SYMPTOMS AMONG CHILDREN
WORLD JOURNAL OF PHARMACEUTICAL AND MEDICAL RESEARCH / 21 - يوليو - 2021
COVID-19 is an illness caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which belongs to beta-coronaviruses. SARS-CoV-2 has caused a pandemic since it was reported in December 2019 in Wuhan, China. The data about the severity of this viral infection in children increased gradually with the appearance of the new variants, but they are still limited compared to the data of adults. Generally, Children with COVID-19 are asymptomatic or have mild symptoms. The most common symptoms include fever, headache, cough, rhinorrhea, sore throat, myalgias, fatigue and gastrointestinal manifestations.
تحميل الملفMonkeypox: Facts about the Disease
Bulletin of Pharmaceutical Sciences Assiut / 10 - أغسطس - 2022
Monkeypox is a zoonotic disease caused by the monkeypox virus of the genus Orthopoxvirus genus and Poxiviridae family. Many animal species, including rodents and monkeys, can transmit the virus. However, the natural reservoir is unknown yet. It can be transmitted to humans via close contact with infected animal or person, or contaminated materials. Monkeypox virus was first detected in 1958 among cynomolgus monkey’s colony in Denmark. The first human case of monkeypox was reported in September 1970 in a 9-month-old child with smallpox-like vesicular skin lesions. This virus usually affects humans and animals living in Central and West Africa, yet it led to several outbreaks previously out of Africa since its discovery. Since 7 May 2022, monkeypox started to appear again in non-endemic countries. By 29 July 2022 at 9:00 PM (GMT), 22485 confirmed cases were recorded worldwide. This review
تحميل الملفA study on the epidemiology of COVID-19 in the Banias and Alkadmos areas of Syria during 2021
Malaysian Journal of Microbiology / 15 - سبتمبر - 2022
Aims: Coronavirus disease-2019 (COVID-19) is an ongoing global pandemic. In Syria, the first case was reported in March 2020. This study was aimed to investigate the incidences of COVID-19 in the Banias and Alkadmos areas in Tartus, Syria, in 2021. Methodology and results: Our data were obtained from the records of Banias and Alkadmos hospitals. The results were inferred by analysing data for 1026 COVID-19 patients. About 58.4% of total cases were among males and 41.6% were among females. Most patients were living in rural areas; 73% compared to 27% in urban ones. The severity of the disease varied between patients. About 67.4% of cases needed to be hospitalized for treatment, most of which were from the elderly. The same was noticed with the mortality rate, with 14.5% of total cases and 66.4% of them were older than 65
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