Incidental findings of Cysticercus tenuicollis metacestodes in five oryx species

Chege, Stephen M.; Toosy, Arshad; Sakr, Ahmed; Shawki, Ahmed; O'Sullivan, Seán; Vargas, Ana Perez de; Cavero, Tatiana; Islam, A. W. M. Shamsul

doi:10.1016/j.apjtb.2015.09.018

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Similar results were reported by Bamorovat et al (2014) and Radfar et al (2014). Ovine visceral metacestodiasis caused by Cysticercus tenuicollis has been repeatedly recorded from wild and domesticated ovine, caprine, bovine, porcine, and camelid species (Chege et al 2016). The adult tapeworm of such larva is the canine tapeworm Taenia hydatigena.…”

Section: Discussionsupporting

confidence: 84%

Liver Diseases in Sheep and Goats: Parallel Sonographic and Pathologic Findings

2023

Int J Vet Sci

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This study was carried out to investigate the ultrasound findings in sheep and goats with hepatic disorders and its correlation with postmortem findings. Twenty-three female sheep (n=9) and goats (n=14) of 1-5 years were examined. They were refereed because of gradual loss of body condition, inappetence, anorexia, and abdominal distension. Ten clinically healthy female animals were used as a control group. The right side of the diseased and control animals were scanned by ultrasonography. None of the control animals showed any sonographic abnormality on hepatic imaging. Diseased animals were classified into 7 groups. Hepatic sonography in group 1 (gallstones) showed dilated bile ducts within the hepatic parenchyma and calculus in the gall bladder. In group 2, the cholecystitis group; the thickening of the gall bladder wall was remarkable on ultrasonography. In group number 3, stones in the bile duct, the calculus in the bile duct appeared sonographically as acoustic enhancement with a distal acoustic shadowing. In group 4 with fatty liver, hepatic imaging showed increased hepatic echogenicity (bright liver appearance) which was intense in 5 animals where blood vessels were difficult to be seen and moderate in the remaining 6. In group 5 affected with Cysticercus tenuicolis, hepatic sonography showed a coarse hyperechogenic pattern of the liver tissue. Unfortanately, both animals in groups 6 and 7 were not examined by sonography and only the postmortem findings were obtained. In conclusion, most of the sheep and goats examined in this study were admitted with nonspecific symptom. It is believed that without hepatic ultrasonography in diseased cases, it will be difficult to reach an antemortem diagnosis. The sonographic findings were parallel almost in all cases with postmortem findings.

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Section: Discussionsupporting

confidence: 84%

Liver Diseases in Sheep and Goats: Parallel Sonographic and Pathologic Findings

2023

Int J Vet Sci

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“…3 Percenatge of relative standard deviation. 4 Estimated based time interval needed to access to at least three sequential FIDs. 5 Estimated via comparison between the frequencies during analysis of different cysts.…”

Section: Discussionmentioning

confidence: 99%

“…The cyst has a translucent wall and contains a scolex, neck and a sac that is filled with fluid 1 – 6 . Mature cysts of C. tenuicollis are mostly observed while they are attached to the mesentery, omentum, peritoneum, liver, urinary bladder, pericardium, chorio-allantoic membrane, pleura, lungs, diaphragm, pelvic cavity, brain, uterine tubes, ovaries, uterus, vagina and cervix 4 , 5 , 7 – 15 . Generally, the infections are chronic in nature and asymptomatic, hence, could not be identified before slaughter 16 .…”

Section: Introductionmentioning

confidence: 99%

Very low frequency waves as selective probe for Cysticercus tenuicollis, Hydatid cyst and Coenurus cerebralis bio-analysis using single cell-signal recording

Foroutan

Moazeni

Doroodmand

et al. 2022

Sci Rep

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Comparative electric behavior of Cysticercus tenuicollis, Hydatid cyst and Coenurus cerebralis at the Very Low Frequency (VLF) region has been studied in detail. This investigation could be significant, because of the economic and public health importance of these parasitic infections in domestic animals. In this report, a single cell signal recording technique has been adopted for comparison using a stainless steel (type: 316, diameter: ~ 300 µm, height: 2.00 cm) two identical electrode system, implanted on the surface of the tested cysts with inter electrode distance of 0.50 cm at a ~ 6.0 giga ohm (GΩ) sealed condition (based on the situation of the implanted electrode system). This process was achieved based on applying electrical interaction between the cysts and the VLF electrical signal. Relative to the measured time domain signal (Current–time diagram), the frequency domain (Current-frequency diagram) was estimated via applying a “Discrete Fast Fourier Transform” (DFFT) algorithm at a fixed time interval (5.0 min). Factors, having important influence on the sensitivity of the detection system including the type (waveform) of different alternating-current (AC) triggering stimulus signals (such as direct current, square wave, triangular, sin (t), etc.), the amplitude, as well as the frequency were optimized automatically through a written “Visual Basic 6” program by one-factor-at-a-time method. Direct applying this AC triggering VLF voltage to the cysts resulted in tracing an AC electrical current vs. time that considered as the time domain wave. However, this electrical current was decayed rapidly versus time during maximum 30.0 s time scale. Applying the DFFT algorithm to the measured time domain, resulted in accessing to the frequency domain at the selected frequency range between 2 and 5 kHz that was considered as the selected frequency for the selective differentiation of C. tenuicollis, Hydatid cyst and C. cerebralis. The related probable mechanism of this process may be attributed to the correlation between the triggering potential and the cyst’s electrical surface charge (Zeta potential) as the current source under similar conditions. The results of this study may help to introduce a new detection system for in vivo recognition of the cysts in future.

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“…To avoid being attacked easily, the leaders must guide the individual in weaker side. toward a better and suitable location [23][24][25][26][27][28][29][30]. We have to admit that there are many behaviors or rules in real world.…”

Section: Introductionmentioning

confidence: 99%

Biological survival optimization algorithm with its engineering and neural network applications

Wang

Zhang

et al. 2023

Soft Comput

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This study proposes a novel and lightweight bio-inspired computation technique named biological survival optimizer (BSO), which simulates the escape behavior of prey in the natural environment. This algorithm consists of two important courses, escape phase and adjustment phase. Specifically, in the escape phase, each search agent is required to updates its location using the best, the worst and a neighboring individual of the population. The adjustment phase is implemented using the simplex algorithm for search better location of the worst agent within a small region. The effectiveness of the BSO is validated on the CEC2017 benchmark problems and three classical engineering structural problems. Simulation comparison results considering both convergence and accuracy simultaneously show that BSO can present competitive performance compared with other state-of-art optimization techniques.

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Incidental findings of Cysticercus tenuicollis metacestodes in five oryx species

Cited by 5 publications

References 8 publications

Liver Diseases in Sheep and Goats: Parallel Sonographic and Pathologic Findings

Liver Diseases in Sheep and Goats: Parallel Sonographic and Pathologic Findings

Very low frequency waves as selective probe for Cysticercus tenuicollis, Hydatid cyst and Coenurus cerebralis bio-analysis using single cell-signal recording

Biological survival optimization algorithm with its engineering and neural network applications

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