bioRxiv Science⌕ Search

bioRxiv · 10.1101/2022.12.14.520482

Effect of Hydromethanolic Seed Extract of Garcinia Kola on Male Reproductive Hormones

Abstract

Reproduction is central to the continued existence of mankind on earth, while infertility presents both a social and a public health concern, with male factor infertility present in 20% - 50% of all cases of infertility among couples. As part of the solution for male fertility disorders, drugs including those that are plant-based are being employed to address such issues. Hence, this study was focused on the effect of the administration of hydro-methanol seed extract of G. kola on the reproductive hormone of adult male Wistar rats. The plant material was procured, identified, and extracted while a total of 36 adult male rats were procured and distributed equally into three groups which were subdivided into two. Animals in group 1 served as the control while groups 2 and 3 served as the extract-treated groups which received 100 and 200 mg/kg BW of the extract respectively. Those in subgroups A and B were treated for 14 and 30 days respectively after which the animals were sacrificed and the blood collected via cardiac puncture into the appropriate bottles for hormonal profile assay. The result showed that the administration of the extract resulted in a reduction in the level of FSH and LH but increased the level of Testosterone, with a significant increase recorded in the 200 mg/kg group, while the level of prolactin was increased in the 100 mg/kg group but decreased in the 200mg/kg group. Hence, Garcinia kola might not be the best solution to aid fertility in males

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Harry, T.. 2022-12-16. Effect of Hydromethanolic Seed Extract of Garcinia Kola on Male Reproductive Hormones. https://doi.org/10.1101/2022.12.14.520482

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related preprints

Hypothalamic Farnesoid X Receptor deficiency alters energy balance by modulating hepatic glucose production and adipose tissue metabolism through central insulin signaling.

Objectives: The bile acid nuclear receptor Farnesoid X Receptor (FXR, NR1H4) is a major regulator of metabolism and energy homeostasis in peripheral organs. It modulates bile acid, glucose, and lipid metabolism, as well as fat mass and body weight. However, FXR is also expressed in the brain, particularly in the hypothalamus, a key center for the regulation of energy homeostasis. Although one study has demonstrated a role for brain FXR activation in energy balance, its specific hypothalamic role is still unknown. Here, we examined the role of FXR in the mediobasal hypothalamus in the regulation of energy balance. Methods: We used a genetic approach combined with metabolic phenotyping to determine the effect of FXR invalidation in the mediobasal hypothalamus on metabolic parameters involved in the central regulation of energy homeostasis. Results: Our results demonstrate that hypothalamic FXR deficiency induces a positive energy balance, resulting in a reduction in energy expenditure due to alterations in glucose metabolism accompanied by structural changes in white adipose tissues. Conclusion: This study uncovers a previously unrecognized role for hypothalamic FXR in the central homeostatic control of energy balance, providing new insights into its contribution to peripheral glucose metabolism and adipose tissue structural remodeling.

physiology↗

Rad and Phospholamban are Key Drivers of the Ventricular Adrenergic Response and Stress-Induced Arrhythmia

The adrenergic response is a fundamental mechanism that regulates heart rate (chronotropy), cardiac contractility (inotropy) and relaxation (lusitropy). Adrenergic stress is also a recognized trigger of arrhythmia in disease. Yet, our understanding of the underlying molecular basis remains incomplete. Protein kinase A (PKA) and the calcium/calmodulin-dependent kinase II (CaMKII) phosphorylate multiple targets proposed to participate in the adrenergic response, including the GTP-binding protein Rad, phospholamban (PLB) and ryanodine receptor 2 (RyR2). Here we demonstrate that phosphorylation of both Rad and PLB is necessary for inotropy and lusitropy. We show that changes in cardiac contractility and relaxation are primarily dependent on intracellular calcium handling. Finally, we report that Rad and PLB control stress-induced arrhythmogenesis, despite the phosphorylation of other pro-arrhythmic targets. We have identified the essential molecular components of the adrenergic response, resolving a long-standing debate in cardiac excitation-contraction coupling and refining current models of sympathetic regulation in health and disease.

physiology↗

Light-cycle time-restricted feeding remodels a hidden layer of the cardiac transcriptome through sex-specific transcript switching

Light-cycle time-restricted feeding disrupts daily cardiovascular and thermoregulatory rhythms, but the molecular effects of light-cycle time-restricted feeding on the heart have been measured only at the level of total gene expression. We used Oxford Nanopore long-read RNA sequencing to resolve the full-length ventricular transcriptome from male and female mice under ad libitum feeding or light-cycle time-restricted feeding across the 24-hour cycle. Greater than 20% of cardiac transcripts represent unannotated variants of known genes absent from the current GENCODE reference annotation. Light-cycle time-restricted feeding reorganizes transcript usage across hundreds of genes, including genes encoding splicing regulators, largely without changing total gene expression. The genes affected are sex-specific, with fewer than 2% of changes shared at the gene, transcript, and transcript-usage levels. We show that transcript-level regulation is a previously underrecognized component of the cardiac response to altered feeding behavior, undetected by conventional short-read approaches.

physiology↗