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Medicinal properties and in vitro biological activities of selected helichrysum species from South Africa: A review
(MDPI, 2021)
The genus Helichrysum Mill comprises hundreds of species that are mostly flowering
perennial shrubs. Some of these plants that belong to the Helichrysum species are used in traditional
medicine to treat cough, back pain, ...
Chemical composition and cosmeceutical potential of the essential oil of oncosiphon suffruticosum (L.) Källersjö
(MDPI, 2021)
The South African medicinal plant Oncosiphon suffruticosum (L.) Källersjö is an important
remedy used to treat chronic, respiratory, and skin ailments. From the essential oil (EO) extracted by
the hydrodistillation, ...
Records of ctenophores from South Africa
(PeerJ Inc., 2021)
Although ctenophores can be conspicuous components of the plankton in coastal marine ecosystems, only six species have been formally described from around South Africa. Using photographs from local community scientists, ...
Male infertility
(Lancet Publishing Group, 2021)
It is estimated that infertility affects 8–12% of couples globally, with a male factor being a primary or contributing cause in approximately 50% of couples. Causes of male subfertility vary highly, but can be related to ...
Comparative analysis of tests used to assess sperm chromatin integrity and DNA fragmentation
(Blackwell Publishing Ltd, 2021)
Male infertility has a complex etiology, and many times, the cause is unknown. While routine semen analysis provides an overview of basic semen parameters, such as sperm concentration, motility, viability and morphology, ...
TUNEL assay—Standardized method for testing sperm DNA fragmentation
(Blackwell Publishing Ltd, 2021)
Sperm DNA integrity is important for normal functions such as fertilization, implantation, pregnancy and fetal development. Sperm DNA fragmentation (SDF) is more common in infertile men and may be responsible for poor ...
Association of XRCC1 and ERCC2 promoters’ methylation with chromatin condensation and sperm DNA fragmentation in idiopathic oligoasthenoteratozoospermic men
(Blackwell Publishing Ltd, 2021)
The aim of the study was to investigate whether the promoter methylation of XRCC1 and ERCC2 genes is associated with sperm DNA fragmentation and chromatin condensation in idiopathic oligoasthenoteratozoospermic men. This ...
Evaluation of seminal oxidation–reduction potential in male infertility
(Blackwell Publishing Ltd, 2021)
The role of oxidative stress in male infertility has been broadly recognised, and the search for a new marker to determine the redox environment in semen has gained considerable interest. Oxidation–reduction potential (ORP) ...
Reactive oxygen species in male reproduction: A boon or a bane?
(Blackwell Publishing Ltd, 2021)
Reactive oxygen species (ROS) are free radicals derived from oxygen during normal cellular metabolism. ROS play a crucial role in the physiological processes and signalling pathways associated with male fertility. At ...
In vitro comparison of the anti-proliferative effects of galenia africana on human skin cell lines
(MDPI, 2021)
Malignant melanoma is the major cause of skin cancer-related deaths. Surgery in combina-tion with radiotherapy, immunotherapy or chemotherapy is used to eradicate cancer cells, however, this treatment option is limited by ...