Research Articles (Medical Bioscience): Recent submissions
Now showing items 61-80 of 258
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Comparative study of the antioxidant constituents, activities and the gc-ms quantification and identification of fatty acids of four selected helichrysum species
(MDPI, 2022)Helichrysum Mill. (Asteraceae) is a plant genus comprising distinctively of aromatic plants of about 500–600 species. Since most of these plants have not been previously studied, extensive profiling helps to validate ... -
Endocrine contribution to the sexual dysfunction in patients with advanced chronic kidney disease and the role of hyperprolactinemia
(John Wiley and Sons Inc, 2021)In this study, we investigated the prevalence of sexual dysfunction among males with advanced chronic kidney disease and the effect of treating hyperprolactinemia among these patients. In this prospective study, patients ... -
The paracrine effect of hypoxic and normoxic cancer secretion on the proliferation of brain endothelial cells (bend.3)
(MDPI, 2022): Background: This study aimed to investigate the disruption of cell cycle phases of bEnd.3 cells exposed to cancer paracrine secretion. Cancer cells have been reported to use the secretion of paracrine factors to ... -
Quantitative sperm characteristics of Tankwa goats with special reference to hyperactivated motility
(South African Society for Animal Science, 2020)Computer-assisted semen analysis (CASA) is an automated and objective method of evaluating structural (e.g. morphology) and functional sperm parameters (e.g. motility and hyperactivation). Sperm hyperactivation is essential ... -
Differential sensitivity of two endothelial cell lines to hydrogen peroxide toxicity: Relevance for in vitro studies of the blood–brain barrier
(MPDI, 2020)Oxidative stress (OS) has been linked to blood–brain barrier (BBB) dysfunction which in turn has been implicated in the initiation and propagation of some neurological diseases. In this study, we profiled, for the first ... -
In vitro effects of aqueous extract of unfermented rooibos on human spermatozoa
(Wiley, 2022)The inability to conceive is a baleful experience for thousands of couples worldwide. Among different well-known reproductive techniques, medicinal plants have been utilized to treat male infertility. Medicinal plants, ... -
Origin, Migration, and Reproduction of Indigenous Domestic Animals with Special Reference to Their Sperm Quality
(MDPI, 2022): Indigenous domestic animals such as cattle, sheep, goats, pigs, and chickens have a natural resistance to endo- and ecto-parasites and are tolerant in terms of harsh environmental conditions. These species orginated ... -
In Silico Sperm Proteome Analysis to Investigate DNA Repair Mechanisms in Varicocele Patients
(Frontiers Media S.A., 2021-12-17)Varicocele, a condition associated with increased oxidative stress, negatively affects sperm DNA integrity and reduces pregnancy rates. However, the molecular mechanisms related to DNA integrity, damage, and repair in ... -
Role of cytocentrifugation combined with nuclear fast picroindigocarmine staining in detecting cryptozoospermia in men diagnosed with azoospermia
(Seoul: Korean Society for Sexual Medicine and Andrology, 2022)Azoospermia is defined as the absence of spermatozoa in the pellet of a centrifuged semen sample. In fact, when a basic semen analysis fails to detect sperm in the ejaculate, there is still the possibility of detecting ... -
Psychosocial reintegration following traumatic spinal cord injury in South Africa: The influence of employment, injury characteristics and living situation
(The Journal of Spinal Cord Medicine,, 2022)1Department of Health and Rehabilitation Sciences, Division of Physiotherapy, Stellenbosch University, Cape Town, South Africa, 2Department of Physiotherapy, University of the Western Cape, Cape Town, South Africa Objectives: ... -
The new 6th edition of the WHO laboratory manual for the examination and processing of human semen: Is it a step toward better standard operating procedure?
(Shanghai Institute Materia Medica, 2021)Semen analysis (SA) remains the cornerstone of male infertility evaluation and should ideally be performed by an accredited andrology laboratory or in vitro fertilization (IVF) clinics based on the standards defined ... -
Differential effects of normoxic versus hypoxic derived breast cancer paracrine factors on brain endothelial cells
(MPDI, 2021)The blood-brain barrier (BBB) is a central nervous system protective barrier formed primarily of endothelial cells that regulate the entry of substances and cells from entering the brain. However, the BBB integrity is ... -
The sixth edition of the WHO manual for human semen analysis: A critical review and SWOT analysis
(MDPI, 2021)Semen analysis is the cornerstone of male fertility evaluation with WHO guidelines providing the basis for procedural standardization and reference values worldwide. The first WHO manual was published in 1980, and five ... -
Relevance of leukocytospermia and semen culture and its true place in diagnosing and treating male infertility
(Korean Society for Sexual Medicine and Andrology, 2021)The current WHO 2010 manual for human semen analysis defines leukocytospermia as the presence of peroxidase-positive leukocytes at a concentration >1×106 /mL of semen. Granular leukocytes when activated are capable of ... -
Corrigendum: Immunological changes during space travel: A ground-based evaluation of the impact of neutron dose rate on plasma cytokine levels in human whole blood cultures
(Frontiers Media, 2021)A better understanding of the combined impact of different space stressors on human health is urgently warranted, considering the upcoming long-duration missions beyond lower Earth orbit. Therefore, a growing number of ... -
Leptin deficiency, caused by malnutrition, makes you susceptible to sars-cov-2 infection but could offer protection from severe Covid-19
(American Society for Microbiology, 2021)In much of the developing world, severe malnutrition is the most prevalent cause of immunodeficiency and affects up to 50% of the population in some impoverished communities. As yet, we do not know how severe acute ... -
High-resolution insights into the in vitro developing blood-brain barrier: Novel morphological features of endothelial nanotube function
(Frontiers Media, 2021)High-resolution electron microscopy (HREM) imaging of the in vitro blood-brain barrier (BBB), is a promising modality for investigating the dynamic morphological interplay underpinning BBB development. The successful ... -
Editorial commentary on draft of world health organization sixth edition laboratory manual for the examination and processing of human semen
(Korean Society for Sexual Medicine and Andrology, 2021)Semen examination is the cornerstone of the evaluation of male fertility potential. Despite its apparent simplicity, it is a complex series of assessments with highly variable results that are subject to interpretation. ... -
Sperm morphology assessment in the era of intracytoplasmic sperm injection: Reliable results require focus on standardization, quality control, and training
(Korean Society for Sexual Medicine and Andrology, 2021)Semen analysis is the first, and frequently, the only step in the evaluation of male fertility. Although the laboratory procedures are conducted according to the World Health Organization (WHO) guidelines, semen analysis ... -
The effect of sperm DNA fragmentation on intracytoplasmic sperm injection outcome
(Wiley, 2021)Our study objective was to assess the effect of various sperm DNA fragmentation levels on clinical intracytoplasmic sperm injection outcome. This retrospective study included 392 patients who underwent ICSI and performed ...