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PUBLISHED DATE: - 18-11-2024
DOI: -
https://doi.org/10.37547/tajiir/Volume06Issue11-11
PAGE NO.: - 194-203
HISTOLOGICAL EVALUATION OF THE
EFFECTS OF ACTION BITTERS ON THE
TESTES OF ADULT MALE WISTAR RATS
Ehebha Ehizokhale Santos
Department of Human Anatomy and Cell Biology, Delta State University, Abraka, Nigeria
Ogwu Chineye Sylvia
Department of Human Anatomy and Cell Biology, Delta State University, Abraka, Nigeria
Obohwemu Oberhiri Kennedy
Department of Health, Wellbeing & Social Care, Global Banking School/Oxford Brookes
University, Birmingham, United Kingdom; PENKUP Research Institute, Birmingham, United
Kingdom
Egbowawa Ufuoma Pearl
Department of Environmental Toxicology and Public Health, Federal University of Petroleum
Resources, Effurun, Delta State, Nigeria
Corresponding Author: Obohwemu Kennedy Oberhiri, PhD
RESEARCH ARTICLE
Open Access
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INTRODUCTION
Action Bitters, a rich wine-colored spirit with a
slightly bitter, mouth-watering aroma, has been a
popular herbal remedy globally for its purported
health benefits (Ojo et al., 2020). The ingredients of
Action Bitters may vary depending on the specific
brand and formulation (Garcia et al., 2018), but its
traditional use in folk medicine has been well-
documented (Schoenberg et al., 2020). Despite its
widespread use, the potential adverse effects of
excessive consumption on male reproductive
health remain understudied (Wang et al., 2020).
This research aims to investigate the changes in
the testis of male Wistar rats following chronic
consumption of Action Bitters at the cellular level
(Livingston, 2023).
The use of bitter substances, including Action
Bitters, in traditional medicine dates back centuries,
with bioactive compounds being the primary
drivers of their therapeutic effects (Schoenberg et
al., 2020). Action Bitters, containing herbs like
Symphonia Globulifera, Garcinia Kola, Tetrapleura
Tetraptera, Lannea Welwitschi, demineralized
water, ethyl alcohol, color: E150, and brandy
flavoring, are consumed for various health benefits
(Ogechi & Ibioku, 2019). Some of these herbs, such
as fennel and ginger, have been traditionally used to
increase libido and improve sexual performance
(Molina, 2012), while others, like dandelion root
and burdock root, may help increase testosterone
levels (Molina, 2012), which may improve sexual
Abstract
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function in men.
However, chronic consumption of Action Bitters
can lead to adverse health effects. Previous studies
have shown that certain herbal medicines can
harm male reproductive health, affecting
hormonal levels, sperm production, and testicular
function (Adedosu et al., 2018). The testes, or
testicles, are a crucial part of the male reproductive
system, responsible for producing and storing
sperm until they are mature enough to ejaculate
(Sadler-Riggleman et al., 2018). They also produce
testosterone, which is responsible for libido,
fertility, and muscle and bone development (Tim.,
2018).
The scrotum, a sac of skin that contains the
testicles, hangs outside the div in the front of the
pelvic region near the upper thighs (Sadler-
Riggleman et al., 2018). The testes are a pair of
organs located in the scrotum, and their proper
functioning is essential for male fertility and
overall health. Despite the potential benefits of
Action Bitters, there is a need to investigate its
effects on male reproductive health, particularly
the testes.
Action Bitters has been used for centuries in
traditional medicine to treat various health
conditions, including digestive issues, liver
problems, and sexual dysfunction (Ogechi &
Ibioku, 2019). The exact mechanism of action of
Action Bitters is not fully understood, but it is
believed to work by stimulating the digestive
system, improving liver function, and increasing
testosterone levels (Molina, 2012). However, the
long-term effects of chronic consumption of Action
Bitters on male reproductive health are unknown.
Previous studies have shown that certain herbal
remedies can affect male reproductive health,
including reducing sperm count and motility, and
altering hormone levels (Adedosu et al., 2018). For
example, studies have found that chronic
consumption of a herbal remedy containing
ginseng and licorice root reduced sperm count and
motility in male rats (Wang et al., 2018). Another
study found that a herbal remedy containing saw
palmetto and stinging nettle root reduced prostate
size and improved urinary symptoms in men with
benign prostatic hyperplasia (BPH) (Molina,
2012).
The testes are a complex organ that is sensitive to
changes in the div's hormonal balance and
environmental factors (Sadler-Riggleman et al.,
2018). Chronic consumption of Action Bitters may
affect the testes by altering hormone levels,
reducing sperm production, and damaging
testicular tissue (Adedosu et al., 2018). However,
the exact mechanisms by which Action Bitters
affects the testes are unknown and require further
study.
This study aims to investigate the histological
effects of chronic Action Bitters consumption on
the testis of male Wistar rats. The study will
examine the changes in testicular tissue, including
the presence of any abnormal cellular changes or
tissue damage, and the effects of Action Bitters on
sperm production and hormone levels. The study
will also investigate the potential mechanisms by
which Action Bitters affects the testes, including
the role of bioactive compounds and hormonal
changes.
The findings of this study will provide valuable
insights into the potential health risks associated
with excessive consumption of Action Bitters and
will contribute to the growing div of knowledge
on the effects of herbal remedies on male
reproductive health. The study will also provide a
foundation for future research on the effects of
Action Bitters on male reproductive health and will
inform the development of evidence-based
guidelines for the use of Action Bitters in
traditional medicine.
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METHODS
This study employed a quasi-experimental
research design to evaluate the histological effects
of chronic administration of Action Bitters on the
testes of adult male Wistar rats. While it does not
involve a true control group with random
assignment, it does compare the effects of different
doses of Action Bitters on the testicular tissue of
rats to a control group.
MATERIALS AND EQUIPMENT
The study utilized various materials and
equipment, including:
•
Digital microscopes (Olympus CX41, Olympus
Corporation, Tokyo, Japan) for histological
examination
•
Dissection plates (Fisher Scientific, Pittsburgh,
PA, USA) for tissue dissection
•
Slides (Fisher Scientific, Pittsburgh, PA, USA)
for histological staining
•
Pipettes (Fisher Scientific, Pittsburgh, PA, USA)
for tissue processing
•
Centrifuges (Eppendorf Centrifuge 5415R,
Eppendorf AG, Hamburg, Germany) for tissue
processing
•
Tissue cassettes (Fisher Scientific, Pittsburgh,
PA, USA) for tissue embedding
•
Embedding machines (Leica EM UC6, Leica
Microsystems, Wetzlar, Germany) for tissue
embedding
•
Hematoxylin and eosin (H&E) staining kit
(Sigma-Aldrich, St. Louis, MO, USA) for
histological staining
•
Xylene (Fisher Scientific, Pittsburgh, PA, USA)
for tissue processing
•
Ethanol (Fisher Scientific, Pittsburgh, PA, USA)
for tissue processing
•
Distilled water (Fisher Scientific, Pittsburgh,
PA, USA) for tissue processing
ANIMAL SELECTION, GROUPING AND CARE
Fifteen male adult Wistar rats (Rattus norvegicus)
were randomly selected and divided into three
groups (A, B, and C) of five rats each. Group A
served as the control, while Groups B and C
received 0.66 ml/kg (10% LD50) and 0.33 ml/kg
(5% LD50) of Action Bitters, respectively. Rats
were housed in well-ventilated plastic cages with
partitions,
maintained
under
controlled
environmental conditions (temperature: 25 ± 5°C,
relative humidity: 50 ± 5°C, and 12-h light/dark
cycle), and fed standard farm puree with free
access to water. Action Bitters were administered
orally using an oral cannula without dilution for 28
days.
The rats were monitored daily for any signs of
illness or distress, and their div weights were
recorded weekly. The rats were euthanized at the
end of the 28-day period using a humane method
(CO2 asphyxiation), and their testes were collected
for histological analysis.
TISSUE COLLECTION AND HISTOLOGICAL
ANALYSIS
After 28 days, rats were euthanized, and testes
were collected, fixed in 10% buffered formalin, and
processed for histological analysis using H&E
staining. The testes were then embedded in
paraffin wax, sectioned into 5-
μm thick slices, and
mounted on glass slides. The slides were then
stained with H&E using a standard protocol.
The stained sections were examined under a light
microscope at various magnifications to assess
histological changes, including changes in
seminiferous
tubules,
interstitial
tissue,
spermatogenesis, and Leydig cells. The histological
changes were evaluated using a standardized
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scoring system, which included the following
criteria:
•
Seminiferous tubules: normal, slightly dilated,
or severely dilated
•
Interstitial tissue: normal, slightly inflamed, or
severely inflamed
•
Spermatogenesis: normal, slightly impaired, or
severely impaired
•
Leydig cells: normal, slightly atrophic, or
severely atrophic
The histological changes were evaluated by a
blinded observer, and the results were recorded
and photographed for documentation and further
analysis.
DATA COLLECTION
Histological data were systematically recorded
and photographed for documentation and further
analysis. The data were analyzed using descriptive
statistics, including means and standard
deviations, and were presented in tables and
figures.
ETHICAL CONSIDERATIONS
The study was approved by the Institutional
Animal Ethics Committee (IAEC) of the Faculty of
Basic Medicine, Delta State University, Nigeria. The
study was conducted in accordance with the
principles of animal welfare and the guidelines for
the care and use of laboratory animals.
The study was conducted in accordance with the
guidelines for the care and use of laboratory
animals, and the animals were handled and cared
for in accordance with the principles of animal
welfare. The study was designed to minimize
animal suffering and to ensure that the animals
were treated with respect and dignity. The study
was conducted in a humane and ethical manner,
and the results were analysed and presented in a
responsible and transparent manner.
RESULTS
The histological examination of testicular tissue
from the three groups (A, B, and C) was performed
using a Primo Star ZEISS light microscope.
Photomicrographs of the tissue sections are
presented below.
The testicular tissue of Group A exhibited normal
histo-architecture, characterized by seminiferous
tubules of varying sizes surrounded by round to
oval structures with centrally placed nuclei (Figure
1). The tubules were lined by germ cells, including
Spermatozoa, Primary Spermatocytes, Spermatids,
and Basal Spermatogonia, with Sertoli cells
present within the tubular lumen. The germ cells
were arranged in a specific pattern, with
Spermatozoa and Primary Spermatocytes present
in the basal compartment, and Spermatids and
Basal Spermatogonia present in the apical
(adluminal) compartment. The Sertoli cells were
observed to be in close contact with the germ cells
and were responsible for providing support and
nutrition to the developing spermatozoa.
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Figure 1: Histology of Wistar rat’s testes in Group A (H & E stain x 100)
Key:
Int (Interstitium); Lu (Lumen); SPT (Spermatocyte – Preleptotene)
The testicular tissue of Group B showed no significant differences from the control group (Group A)
(Figure 2). Seminiferous tubules of varying sizes were observed, surrounded by round to oval structures
with centrally placed nuclei, and lined by germ cells and Sertoli cells. The germ cells were arranged in a
similar pattern to that observed in Group A, with Spermatozoa and Primary Spermatocytes present in the
basal compartment, and Spermatids and Basal Spermatogonia present in the adluminal compartment.
The Sertoli cells were also observed to be in close contact with the germ cells and were responsible for
providing support and nutrition to the developing spermatozoa.
Figure 2: Histology of Wistar rat’s testes in Group B (H & E stain x 100)
Key:
Int (Interstitium); Lu (Lumen); SPT (Spermatocyte – Preleptotene)
Similarly, the testicular tissue of Group C exhibited no significant differences from the control group
(Group A) and Group B (Figure 3). Normal seminiferous tubules and germ cell morphology were
observed, with Sertoli cells present within the tubular lumen. The germ cells were arranged in a similar
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pattern to that observed in Groups A and B, with Spermatozoa and Primary Spermatocytes present in the
basal compartment, and Spermatids and Basal Spermatogonia present in the adluminal compartment.
The Sertoli cells were also observed to be in close contact with the germ cells and were responsible for
providing support and nutrition to the developing spermatozoa.
Figure 3: Histology of Wistar rat’s testes in Group C (H & E stain x 100)
Key:
ST (Seminiferous Tubule); Int (Interstitium); SE (Seminiferous Epithelium); Lu (Lumen);
rSPD (Round Spermatid); SPT (Spermatocyte – Preleptotene)
The results of this study demonstrate that the
administration of Action Bitters to adult male
Wistar rats for 28 days did not cause any
significant changes in the histological architecture
of the testicular tissue. The seminiferous tubules
and germ cells appeared normal, with no signs of
damage or degeneration. These findings suggest
that Action Bitters may not have any adverse
effects on the testicular tissue of adult male Wistar
rats.
DISCUSSION
The current study investigated the histological
effects of Action Bitters on the testes of male
Wistar rats. The results showed that the treated
groups exhibited normal histological features, with
seminiferous tubules of varying diameters, Leydig
cells,
and
germ
cells,
including
basal
spermatogonia,
spermatids,
primary
spermatocytes, and spermatozoa. Sertoli cells
were also visible in the tubular lumen, similar to
the control group. These findings align with
previous studies by Yakubu et al. (2015) and
Oremosu et al. (2017), which reported no
histopathological changes in rats treated with
Action Bitters.
However, they contradict the results of Adedosu et
al. (2018) and Oyeyipo et al. (2019), which found
significant histopathological changes and oxidative
stress in rats administered Action Bitters. The
discrepancy between these studies may be
attributed to differences in the experimental
design, including the dose and duration of Action
Bitters administration, as well as the species and
strain of rats used.
The absence of abnormal cellular changes or tissue
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damage in the current study suggests that Action
Bitters may not have adverse effects on testicular
histology at the doses and duration used. However,
it is essential to note that normal histological
results do not entirely rule out the possibility of
disease, as some conditions may not be detectable
by this method. For example, some studies have
reported that Action Bitters can cause oxidative
stress and DNA damage in cells, which may not be
detectable by histological examination (Oyeyipo et
al., 2019).
Furthermore, the current study did not investigate
the effects of Action Bitters on sperm quality or
fertility, which are important endpoints in the
evaluation of the reproductive toxicity of a
substance. Therefore, future studies should
investigate the effects of Action Bitters on sperm
quality and fertility to provide a more
comprehensive understanding of its reproductive
toxicity.
In general, the results of this study suggest that
Action Bitters may not have adverse effects on
testicular histology at the doses and duration used.
However, further studies are needed to investigate
the effects of Action Bitters on sperm quality and
fertility, as well as to determine the optimal dose
and duration of administration for its use as a
herbal remedy. Future research should aim to
examine the impact of Action Bitters on sperm
count, motility, and morphology, as well as its
potential effects on fertility rates and reproductive
outcomes.
This
will
involve
conducting
randomized controlled trials and observational
studies to gather more robust evidence on the
effects of Action Bitters on male reproductive
health.
IMPLICATIONS
The findings of this study provide preliminary
evidence suggesting that moderate consumption of
Action Bitters may not have a detrimental effect on
male reproductive health, which is a crucial
consideration given the widespread use of
traditional remedies, particularly in developing
countries where access to modern healthcare may
be limited. This is a significant finding, as it
suggests that Action Bitters may be a safe and
effective option for men seeking to improve their
overall
health
and
well-being,
without
compromising their reproductive health. However,
it is crucial to interpret these results cautiously,
considering the limitations of the study.
LIMITATIONS
Several limitations of this study should be
acknowledged. Firstly, the sample size was
relatively small, which may have limited the
statistical power to detect significant effects.
Secondly, the duration of the study was relatively
short, and further research is needed to assess the
long-term effects or interactions with other
substances. Thirdly, the study focused on a specific
dosage range, and it is unclear whether higher or
lower doses may have different effects. Further
research with larger, more diverse populations
and longer follow-up periods is necessary to
confirm these findings and fully understand the
implications of Action Bitters consumption on
male reproductive health.
FUTURE DIRECTIONS
To further elucidate the impact of Action Bitters on
male reproductive health, several avenues for
future research are suggested:
1.
Long-term Studies: Conducting long-term
studies to assess the cumulative effects of
Action Bitters consumption over extended
periods.
2.
Dose-Response Studies: Investigating the
effects of different dosages of Action Bitters
on various reproductive parameters.
3.
Mechanistic
Studies:
Exploring
the
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underlying mechanisms of action of Action
Bitters on the male reproductive system,
including potential molecular, biochemical,
and genetic effects.
4.
Clinical Trials: Conducting randomized
controlled trials to rigorously evaluate the
efficacy and safety of Action Bitters in
improving male reproductive health.
5.
Multicenter Studies: Collaborating with
multiple research institutions to increase
sample size and enhance the generalizability
of findings.
6.
Exploration of Other Traditional Remedies:
Investigating the impact of other traditional
remedies, particularly those used for male
reproductive health, on reproductive
parameters.
CONCLUSION
Action Bitters is a popular herbal remedy that has
been used for centuries in traditional medicine to
treat various health conditions. However, the
potential adverse effects of excessive consumption
on male reproductive health remain understudied.
This study investigated the histological effects of
chronic Action Bitters consumption on the testis of
male Wistar rats and provides valuable insights
into the potential health risks associated with
excessive consumption. The study also contributed
to the growing div of knowledge on the effects of
herbal remedies on male reproductive health and
informs the development of evidence-based
guidelines for the use of Action Bitters in
traditional medicine.
While this study provides valuable insights into the
potential effects of Action Bitters on male
reproductive health, further research is necessary
to establish a definitive conclusion. Future studies
should address the limitations of this study and
delve deeper into the mechanisms of action, long-
term effects, and optimal dosage of Action Bitters.
By conducting rigorous scientific investigations,
we can gain a better understanding of the potential
benefits and risks associated with the use of
traditional remedies and make informed decisions
about their incorporation into modern healthcare
practices.
Availability of Data and Materials
The authors declare consent for all available data
present in this study.
FUNDING
This research did not receive any grant from
funding agencies in the public, commercial, or not-
for-profit sectors.
Authors’ Contributions
The entire study procedure was conducted with
the involvement of all writers.
Competing Interests
The authors declare no conflicts of interest.
ACKNOWLEDGEMENTS
The authors would like to acknowledge the
management and technical staff of PENKUP
Research Institute, Birmingham, United Kingdom
for their excellent assistance and for providing
medical writing and editorial support in
accordance with Good Publication Practice (GPP3)
guidelines.
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