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  1. Hay fever (allergic rhinitis) is a common condition that causes unpleasant respiratory symptoms. The objective of this cross-sectional study is to examine the trends of hay fever self-reported diagnosis among ...

    Authors: Jenna Zamil, Anjana Mohan, Zahra Majd and Hua Chen
    Citation: Bulletin of the National Research Centre 2022 46:122
  2. The use of medicinal plants in curing diseases is an ancient culture still in use in many parts of the world. Many plants have been proven to have precise ethno-pharmacological relevance. On the contrary, many...

    Authors: Arpita Bardoloi and Amar Deep Soren
    Citation: Bulletin of the National Research Centre 2022 46:119
  3. To evaluate the effect of modifying conventional glass ionomer (CGIC) and resin-modified glass ionomer (RMGIC) with nano-hydroxyapatite (Nano-HA) on their clinical performance as restorations for class V cavit...

    Authors: Zeinab M. Zaki, Shaymaa M. Nagi, Ali E. Abdelnabi, Adli A. Hanna, Dina W. Elkassas, Mohamed H. Zaazou and Maha A. Niazy
    Citation: Bulletin of the National Research Centre 2022 46:116
  4. A common complication of any respiratory disease by a virus could be a secondary bacterial infection, which is known to cause an increase in severity. It is, however, not clear whether the presence of some opp...

    Authors: Olabisi Flora Davies-Bolorunduro, Muinah Adenike Fowora, Olufemi Samuel Amoo, Esther Adeniji, Kazeem Adewale Osuolale, Oluwatobi Oladele, Tochukwu Ifeanyi Onuigbo, Josephine Chioma Obi, Joy Oraegbu, Oluwatobi Ogundepo, Rahaman Ademolu Ahmed, Olagoke AbdulRazaq Usman, Bosede Ganiyat Iyapo, Adedamola Adejuwon Dada, Ngozi Onyia, Richard Adebayo Adegbola…
    Citation: Bulletin of the National Research Centre 2022 46:115
  5. Vasculitis and phlebitis with vascular occlusion within appendix specimen is rare. Several authors have reported COVID-19 related veno-occlusive disease in hepatic pathology, but lymphoid aggregation with phle...

    Authors: Abdus Salam Raju, Aditya Thomas Benjamin, Tristan Rutland, Luke Liu and Paul Lambrakis
    Citation: Bulletin of the National Research Centre 2022 46:114

    The Correction to this article has been published in Bulletin of the National Research Centre 2022 46:137

  6. Eragrostis tremula Hochst. ex Steud. (Poaceae) is used in ethno-medicine as a memory enhancer. Studies have shown that the whole plant possesses memory enhancing potentials and could be beneficial in the manageme...

    Authors: Abdullahi Balarabe Nazifi, Abdulhakim Abubakar, Mohammed Garba Magaji, Musa Aliyu and Nuhu Mohammed Danjuma
    Citation: Bulletin of the National Research Centre 2022 46:113
  7. Every year millions of Muslims travel to Saudi Arabia to perform the fifth pillar of Islam, the Hajj pilgrimage Aligned with the Kingdom's 2030 vision, the Ministry of Health works to provide advanced free med...

    Authors: Alhanouf Aljohani, Shatha Nejaim, Mashael Khayyat and Omar Aboulola
    Citation: Bulletin of the National Research Centre 2022 46:112

    The Correction to this article has been published in Bulletin of the National Research Centre 2022 46:144

  8. Mouth breathing is considered as a mode of breathing modality that presents as a replacement to normal nasal breathing. This persistent pattern of mouth breathing have considerable influence on the development...

    Authors: Lakshmi Thribhuvanan and M. S. Saravanakumar
    Citation: Bulletin of the National Research Centre 2022 46:111
  9. A perusal of the literature suggested that Manilkara zapota (L.) P. Royen stem bark (MZSB) is enriched with several bioactive phytoconstituents but had not been yet screened for its in vitro and in vivo antidiabe...

    Authors: Pravin P. Karle, Shashikant C. Dhawale, Rajesh J. Mandade and Vijay V. Navghare
    Citation: Bulletin of the National Research Centre 2022 46:110
  10. Hepatitis C virus (HCV) is a contagious disease that damages the liver over time, eventually leading to cirrhosis and death. Chronic HCV infection is regarded as a serious health problem worldwide, impacting u...

    Authors: Stephen Ejeh, Adamu Uzairu, Gideon A. Shallangwa, Stephen E. Abechi and Muhammad Tukur Ibrahim
    Citation: Bulletin of the National Research Centre 2022 46:109
  11. The cowpea bruchid, Callosobruchus maculatus is the major postharvest insect pest of cowpea seeds in storage. This had led to huge losses and quality deterioration of stored cowpea seeds that serve as poor man’s ...

    Authors: Michael Olufemi Ashamo, Kayode David Ileke and Ayomiposi Idowu Onasile
    Citation: Bulletin of the National Research Centre 2022 46:108
  12. Belize is rich in rainforest and vast medicinal plants that have the potential for drug discoveries. Few studies have examined the use of medicinal plants in the management of chronic diseases in Belize. The p...

    Authors: David D. Mphuthi and Danladi Chiroma Husaini
    Citation: Bulletin of the National Research Centre 2022 46:107
  13. Amphibian parasites have been used as models for understanding important issues about host activity and sensitivity to environmental perturbations and amphibian decline. With the aim of comparing the parasitic...

    Authors: Okechukwu Martin Okeagu, Bamidele Akinsanya and Tolulope Uzoka
    Citation: Bulletin of the National Research Centre 2022 46:105
  14. Microscopic abnormalities are common findings on routine urinalysis performed for various clinical reasons. As a small proportion of these may indicate an underlying malignancy, a large number of patients with...

    Authors: Zulfadhly Murtadha Afiq Zainal Bahren
    Citation: Bulletin of the National Research Centre 2022 46:104
  15. Viral pneumonias are a major cause of childhood mortality. Proper management needs early and accurate diagnosis. This study objective is to investigate the viral etiologies of pneumonia in children.

    Authors: Amira S. El Refay, Manal A. Shehata, Lobna S. Sherif, Hala G. El Nady, Naglaa Kholoussi, Shams Kholoussi, Nevine R. El Baroudy, Mokhtar R. Gomma, Sara H. Mahmoud, Noura M. Abo Shama, Ola Bagato, Ahmed El Taweel, Ahmed kandeil and Mohamed A. Ali
    Citation: Bulletin of the National Research Centre 2022 46:103
  16. The search for ideal drugs with absolute antiviral activity against SARS-CoV-2 is still in place, and attention has been recently drawn to natural products. Several molecular targets have been identified as po...

    Authors: Precious Ayorinde Akinnusi, Samuel Olawale Olubode and Wasiu Adeboye Salaudeen
    Citation: Bulletin of the National Research Centre 2022 46:102
  17. Cancer is a significant public health problem worldwide and constitutes the second leading cause of death after cardiovascular disease. This study was thus designed to identify new natural compounds from Malag...

    Authors: Jean-Paul Koto-Te-Nyiwa Ngbolua, Jason T. Kilembe, Aristote Matondo, Colette Masengo Ashande, Janvier Mukiza, Célestin Mudogo Nzanzu, Fatiany Pierre Ruphin, Robijaona Baholy, Pius T. Mpiana and Virima Mudogo
    Citation: Bulletin of the National Research Centre 2022 46:101
  18. The hyperinflammatory state leading to an aberrant cytokine production, culminating in acute respiratory distress syndrome, sepsis and multi-organ dysfunction contribute much to the pathophysiologies of severe...

    Authors: Rahul Gupta
    Citation: Bulletin of the National Research Centre 2022 46:100
  19. Faecal incontinence is a common anorectal medical trouble among adult population. The aim was to compare the efficacy of biofeedback pelvic floor muscle training versus posterior tibial nerve electrical stimul...

    Authors: Mervat Sheta Elsawy and Emmanuel Kamal Aziz Saba
    Citation: Bulletin of the National Research Centre 2022 46:99
  20. Osteoradionecrosis of the jaw (ORNJ) is a well-known chronic side effect of radiotherapy (RT) for head and neck malignancies. Osteonecrosis of the jaw (ONJ), similar pathology to ORNJ, may be induced by bispho...

    Authors: Atsushi Shudo
    Citation: Bulletin of the National Research Centre 2022 46:98
  21. The world has been suffering from the COVID-19 pandemic (officially declared by WHO in March 2020), caused by the severe acute respiratory β-coronavirus 2 (SARS-CoV-2) since the last week of December 2019. The...

    Authors: Rashed Noor, Saadia Shareen and Muntasir Billah
    Citation: Bulletin of the National Research Centre 2022 46:96
  22. This study was carried out to investigate the antifungal activity of chitinase produced by Streptomyces species isolated from grassland soils against selected pathogenic fungi, namely: Magnaporthe oryzae, Fusariu...

    Authors: Fatuyi Olanipekun Ekundayo, Abisola Eniola Folorunsho, Tope Abraham Ibisanmi and Olayinka Bukola Olabanji
    Citation: Bulletin of the National Research Centre 2022 46:95
  23. Crude ethanolic extracts of leaves and stem of Physalis minima (Solanaceae) were evaluated for in vitro anthelmintic activity on the Bangladeshi mature parasitic flatworm Paramphistomum cervi (Trematoda) in cattl...

    Authors: Fazle Rabbi Shakil Ahmed, Afroza Sultana, Mst. Jesmin Sultana and Antara Saha
    Citation: Bulletin of the National Research Centre 2022 46:94
  24. Leishmaniasis is a neglected tropical disease caused by a group of protozoan of the genus Leishmania and transmitted to humans majorly through the bite of the female sand fly. It is prevalent in the tropical regi...

    Authors: Fabian Audu Ugbe, Gideon Adamu Shallangwa, Adamu Uzairu and Ibrahim Abdulkadir
    Citation: Bulletin of the National Research Centre 2022 46:92
  25. The safe disposal of green waste is necessary for a clean environment, with the safe disposal of waste contaminated with aflatoxins being of particular importance. This work presents a novel route for utilizin...

    Authors: Samar A. El-Mekkawi, Ahmed Salem Sebaei and Shereen Kamel Amin
    Citation: Bulletin of the National Research Centre 2022 46:91
  26. Fibromyalgia syndrome (FM) is often accompanied by anxiety. Dental anxiety is common in society and negatively affects the application of patients to the dentist.

    Authors: Manolya Ilhanli, Mehmet Alptekin Karacesme, Ilker Ilhanli and Peruze Celenk
    Citation: Bulletin of the National Research Centre 2022 46:90
  27. The long-acting reversible contraceptive method is one way to overcome the high population growth rate. The long-term contraception method is more efficient to regulate pregnancy because it can be used for a l...

    Authors: Fitriana Putri Utami, Erni Gustina, Dedik Sulistiawan, Ratu Matahari and Bakti Permata Sari
    Citation: Bulletin of the National Research Centre 2022 46:89
  28. Grey mould caused by Botrytis cinerea of cucumber immature fruits is the most epidemic fungal diseases causing significantly losses of fruits during development on cucumber plant in winter season.

    Authors: El-Sayed H. E. Ziedan, Moataza M. Saad, Ahmed A. El-Kafrawy, Ahmed F. Sahab and Abdel-Tawab H. Mossa
    Citation: Bulletin of the National Research Centre 2022 46:88
  29. Odonata (dragonfly and damselfly) are particularly good indicators of freshwater ecosystem health. The constant disturbance of freshwater habitats can result in the reduction of Odonata species diversity. Chan...

    Authors: Babasola Adu, Omolola Dada and Victor Tunwase
    Citation: Bulletin of the National Research Centre 2022 46:86
  30. Plant foods have gained tremendous consideration as a significant progenitor of bioactive substances with several therapeutic advantages over synthetic drugs. Shallot (Allium ascalonicum L.) together with plantai...

    Authors: Aanuoluwapo Elizabeth Adeyemo, Olufunmilayo Sade Omoba, Aderonke Ibidunni Olagunju and Sunday Solomon Josiah
    Citation: Bulletin of the National Research Centre 2022 46:85
  31. Wild cocoyam (Caladium bicolar) is non-edible starchy material which is commonly known as ‘Ede umuagbara’ in the south-east region of Nigeria. Evaluating the potential of wild cocoyam for citric acid production w...

    Authors: Ifeanyi Boniface Ezeaa and Emmanuel Ezaka
    Citation: Bulletin of the National Research Centre 2022 46:84
  32. The most critical part in management of children in the dental clinic is control of pain and this can be achieved through local anesthesia. When the treatment plan includes extraction of mandibular primary mol...

    Authors: Rasha F. Sharaf and Nihal Kabel
    Citation: Bulletin of the National Research Centre 2022 46:83
  33. Increasing cultivation of strawberry in Egypt has boosted efforts to increase its yield. Biocontrol agents (BCAs) may avoid side effects and health risks caused by chemical fungicides used to control black roo...

    Authors: Farid Abd-El-Kareem, Ibrahim E. Elshahawy and Mahfouz M. M. Abd-Elgawad
    Citation: Bulletin of the National Research Centre 2022 46:82
  34. Samples of hunted greater cane rat (Thryonomis swinderianus) were collected from Oluwo Market, Epe and Odo Ona Kekere in Oluyole Local Government Area Ibadan, Nigeria. Trace metals such as zinc, cadmium, vanadium...

    Authors: Ayodele Elizabeth, Akinsanya Bamidele, Ogunyebi Amos Lanrewaju, Akeredolu Excellence and Isibor Patrick Omoregie
    Citation: Bulletin of the National Research Centre 2022 46:81
  35. The purpose of this review was to provide and synthesize validated and up-to-date scientific knowledge on the benefits and drawbacks of crossbreeding as a basis for goat production by Ethiopian smallholder far...

    Authors: Belete Kuraz Abebe
    Citation: Bulletin of the National Research Centre 2022 46:80
  36. In recent years, special attention has been focused on the use of natural adsorbents as an alternative to replace the conventional adsorbents, based on both the environmental and the economical points of view....

    Authors: Nazar A.aziz ElNasri, Nazar Abdallazim Wadidi, Alkhair Abd Almahmoud Idris, Saba Kidane Woldemicheal and Sabah Ibrahim Ahmed El Haj
    Citation: Bulletin of the National Research Centre 2022 46:79
  37. Mosquitoes are considered to be the main vector of a variety of diseases in both humans and domesticated animals. The development of insecticide resistance and the limitations of traditional insecticide-based ...

    Authors: Hatem A. Shalaby, Heba M. Ashry, Moataza M. Saad, Amira H. El Namaky and Marwa T. Hassen
    Citation: Bulletin of the National Research Centre 2022 46:78
  38. Intercropping systems play an effective role in increasing the efficiency of land usage and improving the economic return. During the seasons of 2018 and 2019, the field experiment was conducted to evaluate th...

    Authors: Mahmoud Sami Abourayya, Nabila Elbadawy Kaseem, Thanaa Shaban Mohamed Mahmoud, Neama Mohamed Marzouk and Amal Masoad Rakha
    Citation: Bulletin of the National Research Centre 2022 46:77
  39. Ochronotic arthropathy affecting the hip and knee joints is one of the musculoskeletal manifestations of alkaptonuria which results from a tyrosine amino acid metabolism disorder. The condition has no definiti...

    Authors: Ahmed A. Khalifa, Mohamed M. A. Moustafa, Hatem Bakr and Ahmed M. Abdelaal
    Citation: Bulletin of the National Research Centre 2022 46:76
  40. This study investigated the effect of preheating of bulk-fill BIS-GMA free and containing resin composite on post-gel shrinkage strain. In a split Teflon mold, sixty resin composite specimens were prepared wit...

    Authors: Mohamed Lotfy, Nermin A. Mahmoud and Mona I. Riad
    Citation: Bulletin of the National Research Centre 2022 46:74
  41. Hormone production by the thyroid gland is a prime aspect of maintaining body homeostasis. In this study, the ability of single artificial intelligence (AI)-based models, namely multi-layer perceptron (MLP), s...

    Authors: Abdullahi Garba Usman, Umar Muhammad Ghali, Mohamed Alhosen Ali Degm, Salisu M. Muhammad, Evren Hincal, Abdulaziz Umar Kurya, Selin Işik, Qendresa Hoti and S. I. Abba
    Citation: Bulletin of the National Research Centre 2022 46:73
  42. Food hygiene and safety is of utmost importance for public health, as it helps to protect the health of consumers from foodborne illnesses. Although, hundreds of plant species have been screened and tested for...

    Authors: Tope Abraham Ibisanmi and Jamiu Olaseni Aribisala
    Citation: Bulletin of the National Research Centre 2022 46:72
  43. As a result of aberrant neural development, autism spectrum disorder (ASD) is characterised by complicated behavioural and memory issues. The dearth of knowledge about the actual etiopathology of autism makes ...

    Authors: K. N. Jiji and P. Muralidharan
    Citation: Bulletin of the National Research Centre 2022 46:71
  44. The Nile River included diverse phytoplankton compositions belonging to five main phytoplankton categories. Algae have been classified and identified through comparative morphology.

    Authors: Adel Hussein Abouzied and Hanan A. S. Hassan
    Citation: Bulletin of the National Research Centre 2022 46:70

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