Publications by authors named "S St C Botha"

Background: This study explored and described the impact of the COVID-19 pandemic on nurse outcomes in the private sector of South Africa. National research shows that nurses had poor nurse outcomes prior to the pandemic, amidst these issues the COVID-19 pandemic occurred, with nurses having to play a key role in the public health response. International studies have shown that although nurses were willing to serve in this manner, they experienced moderate to high burnout, anxiety, depression, fear and exhaustion.

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Serial macromolecular X-ray crystallography plays an important role in elucidating protein structures and consequently progressing the field of targeted therapeutics. The use of pulsed beams at different repetition frequencies requires the development of various sample-conserving injection strategies to minimize sample wastage between X-ray exposures. Fixed-target sample delivery methods that use solid support to hold the crystals in the X-ray beam path are gaining interest as a sample-conserving delivery system for X-ray crystallography with high crystal hit rates.

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Bacterial ferredoxin(flavodoxin)-NADP reductases (FPR) primarily catalyze the transfer of reducing equivalents from NADPH to ferredoxin (or flavodoxin) to provide low potential reducing equivalents for the oxidoreductive metabolism. In addition, they can be implicated in regulating reactive oxygen species levels. Here we assess the functionality of FPR from B.

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Biologic and targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARDs) target a specific pathway of the immune system, and are usually prescribed after failure of conventional synthetic disease-modifying antirheumatic drug therapy. The choice of b/tsDMARD depends on the disease profile and comorbidities, patient preference, registered indications of the drugs, and risks associated with therapy. It is recommended that b/tsDMARDs for immune-mediated inflammatory rheumatic diseases are prescribed by a rheumatologist, and all patients must be included in the South African Rheumatism and Arthritis Association biologic registry.

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Leukocyte-associated immunoglobulin-like receptor 1 (LAIR1) is an inhibitory receptor expressed on immune cells. We evaluated LAIR1 in placentas from preeclamptic or small for gestational age (SGA) pregnancies, and placental explant model (1 % O, IL6 and TNFα, or control). LAIR1 mRNA was reduced in placentas from preeclamptic (p < 0.

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