C. F. Wolschrijn, I. H. Smit, J. Schouten, N. C. R. Moller te
{"title":"Nerve entry points in the mimic musculature of the horse head","authors":"C. F. Wolschrijn, I. H. Smit, J. Schouten, N. C. R. Moller te","doi":"10.1111/ahe.13099","DOIUrl":"10.1111/ahe.13099","url":null,"abstract":"<p>Facial expressions are important in pain recognition in horses, but current observation-based pain scales remain subjective. A promising technique to quantitatively measure subtle changes in expression patterns, including changes invisible to the human eye, is surface electromyography (sEMG). To achieve high-quality and reliable sEMG signals, unilateral placement of bipolar electrodes is required in relation to the motor endplates (MEP). We aimed to localize the nerve entry points (NEPs; where the nerve branch first pierced the muscle belly) and the direction of the terminal nerve endings to estimate MEP locations of the innervating nerves in five equine facial muscles involved in pain expression. Three cadaveric Dutch Warmblood horse heads were dissected to identify the NEPs in the musculi caninus, levator anguli oculi medialis, nasolabialis, masseter and zygomaticus. These points were marked with pins and measured in relation to a reference line between two anatomical landmarks near the origin and insertion of the respective muscle. Relative distances were calculated from the most caudally situated landmark. NEPs were located at 33%–38% (caninus), 69%–86% (levator anguli oculi medialis) and 0%–18% (zygomaticus) from the caudal landmark. The nasolabialis showed two innervations zones. Its NEPs were located at 47%–72% (dorsal muscle branch) and 52%–91% (ventral branch). All terminal nerve endings were found to run in rostral direction. The masseter showed numerous NEPs diffusely spread within the muscle belly. Therefore, calculation of relative positions was not performed. These results could form the basis for feasibility studies and standardization of bipolar electrode positioning in vivo to measure facial muscle activity patterns in horses.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ahe.13099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141890854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Henrique Inhauser Riceti Magalhães, Mônica Duarte da Silva, Abelardo Moreira dos Santos Penna Neto, Arthur Nunes Moreira Penna, Victor Hugo Barto, Maria Angelica Miglino, Karen Renata Nakamura Hiraki, Lucas de Assis Ribeiro
{"title":"Morphological description of the temporomandibular joint ligaments in domestic pigs","authors":"Henrique Inhauser Riceti Magalhães, Mônica Duarte da Silva, Abelardo Moreira dos Santos Penna Neto, Arthur Nunes Moreira Penna, Victor Hugo Barto, Maria Angelica Miglino, Karen Renata Nakamura Hiraki, Lucas de Assis Ribeiro","doi":"10.1111/ahe.13097","DOIUrl":"10.1111/ahe.13097","url":null,"abstract":"<p>The temporomandibular joint (TMJ) ligaments play crucial roles in its function or dysfunction. The objective of this study was to describe the macro and microscopic morphology of these ligaments in domestic pigs, aiming to: (1) expand knowledge about the species; (2) provide anatomical references for advancing veterinary therapy and utilizing pigs as animal models in craniofacial research. Heads of young <i>Sus scrofa domesticus</i> were dissected to identify TMJ ligaments. Fragments of these ligaments were collected and processed for subsequent histological analysis with Haematoxylin and eosin staining. The results were qualitatively described. Pigs exhibited a TMJ reinforced by three individualized capsular ligaments: a lateral ligament, attaching to the ventral margin of the zygomatic process of the temporal bone and the lateral margin of the mandibular neck; a caudomedial ligament, attaching to the retroarticular process of the squamous part of the temporal bone and the caudomedial margin of the mandibular neck and a caudolateral ligament, attaching to the ventral margin of the base of the zygomatic process of the temporal bone and the caudal margin of the mandibular neck. The lateral ligament exhibited a greater constitution of dense irregular connective tissue, while the caudomedial and caudolateral ligaments showed a greater constitution of dense regular connective tissue. It is concluded that the TMJ of pigs presents one more ligament than horses, cattle, dogs, cats and what has been described for pigs themselves. We believe these results may contribute to the improvement of veterinary clinical and surgical therapy overall, as well as provide essential morphological information for a better interpretation and application of interspecies results in craniofacial research using pigs as an experimental model, as in the case of humans.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141876637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An analysis on efficacy of applying β-elemene intervention on chemically -induced tongue lesions using SAM algorithm","authors":"Feng Liu, Qinlong Zhang, Weijie Zhang, Deqiang Cheng, Feng Zhang, Yating Deng, Guanzhen Yu","doi":"10.1111/ahe.13095","DOIUrl":"10.1111/ahe.13095","url":null,"abstract":"<p>An artificial intelligence (AI) model was designed to assist pathologists in diagnosing and quantifying structural changes in tongue lesions induced by chemical carcinogens. Using a tongue cancer model induced by 4-nitroquinoline-N-oxide and treated with β-elemene, a total of 183 digital pathology slides were processed. The Segment Anything Model (SAM) was employed for initial segmentation, followed by conventional algorithms for more detailed segmentation. The epithelial contour area was computed using OpenCV's findcontour method, and the skeletonize method was used to calculate the distance map and skeletonized representation. The AI model demonstrated high accuracy in measuring tongue epithelial thickness and the number of papilla-like protrusions. Results indicated that the model group had significantly higher epithelial thickness and fewer papillae compared with the blank group. Furthermore, the treatment group exhibited reduced epithelial thickness and fewer papilla-like protrusions compared with the model group, though these differences were less pronounced. Overall, the SAM framework algorithm proved effective in quantifying tongue epithelial thickness and the number of papilla-like protrusions, thereby assisting healthcare professionals in understanding pathological changes and assessing treatment outcomes.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141857047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong-Wook Yang, Hye-Min Shim, Min-Seok Kim, Sun-Hun Kim
{"title":"Spatiotemporal regulation of dental pulpal innervation in the rat","authors":"Dong-Wook Yang, Hye-Min Shim, Min-Seok Kim, Sun-Hun Kim","doi":"10.1111/ahe.13093","DOIUrl":"10.1111/ahe.13093","url":null,"abstract":"<p>The dental pulp is a highly innervated tissue transmitting pain-related sensations in the tooth. Consequently, understanding the intricacies of its innervation mechanism in odontogenesis is crucial for gaining insights into dental pain and developing dental pain-modulating agents. This study examined neuroregulatory molecules such as neurotrophic factors (nerve growth factor [NGF], brain-derived neurotrophic factor [BDNF], neurotrophin-4 [NTF-4], and neurturin [NRTN]) and neuroinhibitory factors (slit2, ephrin isoforms and netrin-1) in developing rat teeth with follicles. NGF, BDNF and NRTN transcriptions showed time-dependent upregulation, particularly during the root formation stage. In contrast, NTF-4 mRNA was highly expressed at the cap stage, but became downregulated over time. Slit2 and ephrin-B2 expression was distinct at the cap stage and then downregulated in a time-dependent manner. Ephrin-A5 and netrin-1 expression did not significantly change. Immunofluorescence analysis revealed a robust expression of both ephrin-B2 and slit2 in the outer and inner dental epithelia of the enamel organ, a non-neurogenic tissue, during the cap stage of 3rd molar germs. In contrast, BDNF was predominantly localized in dental papilla cells and odontoblasts during the root formation stage. These results suggest that neuroregulatory molecules, such as BDNF, slit2 and ephrin-B2, may be important in identifying therapeutic targets for modulating dental pulp pain.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ahe.13093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jian Zhang, Guyue Li, Sijiu Yu, Yangyang Pan, Jiangfeng Fan, Yan Cui
{"title":"FSH induces apoptosis in follicular granulosa cells of Tianzhu white yak and regulates the expression of Fas/FasL mRNA","authors":"Jian Zhang, Guyue Li, Sijiu Yu, Yangyang Pan, Jiangfeng Fan, Yan Cui","doi":"10.1111/ahe.13089","DOIUrl":"10.1111/ahe.13089","url":null,"abstract":"<p>The Tianzhu white yak, a globally rare species, holds immense value as a source for yak materials. While the Fas/FasL pathway is pivotal in granulosa cells apoptosis, its precise molecular workings remain enigmatic. This study endeavours to decipher the role of follicle-stimulating hormone (FSH) in suppressing ovarian granulosa cells (GC) apoptosis in the Tianzhu white yak. Utilizing advanced cell culture techniques, we employed the MTT method, flow cytometry, fluorescence labelling and RT-PCR to investigate the apoptotic effects of FSH on yak GCs. Our results reveal that FSH's inhibitory effect on GC apoptosis follows a normal distribution pattern, peaking at an FSH concentration of 100 ng/mL with an apoptosis inhibition rate of 89.31%. When serum was withdrawn, an FSH concentration of 2 × 10<sup>6</sup> ng/mL reduced apoptosis by 72.84%. Annexin V-FITC staining revealed membrane invaginations, bubble and protrusion formation on the cell surface, and alterations in membrane structure and cell morphology. Flow cytometry analysis further demonstrated that FSH administration prior to early granulosa cell apoptosis had a more profound effect than during gradual apoptosis, both showing a suppressive effect on early follicular granulosa cell apoptosis. A transcription-level analysis conducted 3 h prior to serum withdrawal, with the addition of 100 ng/mL FSH, revealed intricate regulations in the expression of Fas/FasL. Notably, we observed a gradual increase in FasL expression over time, yet the presence of FSH effectively down-regulated FasL expression to baseline levels, without notable changes in Fas expression. Immunocytochemical analysis further confirmed the presence of both Fas and FasL on the cell membrane, nucleus and cytoplasm, with varying intensities depending on the duration of FSH treatment. Our findings suggest that FSH may suppress the apoptotic pathway in follicular primarily by down-regulating FasL expression, indicating that Fas-regulated mitochondrial pathways play a more prominent role compared to death receptor pathways. This study offers a fresh perspective on the mechanism underlying follicular atresia in Tianzhu white yaks and lays a solid theoretical foundation for the expansion of this endangered species' population.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141753280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Geometric morphometric analysis of beak shape of Columbimorphae (Columbas, Van, Mardin and Dönek)","authors":"Ermiş Özkan, Ebuderda Günay, Emine İrem Deveci, Nicoleta Manuta, Buket Çakar","doi":"10.1111/ahe.13094","DOIUrl":"10.1111/ahe.13094","url":null,"abstract":"<p>Selective breeding over centuries has led to the emergence of numerous pigeon breeds from the single species <i>Columba livia</i>, showcasing unparalleled phenotypic diversity. In Eastern Turkey, Van pigeons originate, while Tumbler pigeon varieties thrive countrywide, reflecting local traditions. The avian beak, vital for survival, offers insights into domestication and traits influenced by natural selection. Geometric morphometrics, a shape analysis method, allows for a comprehensive examination of beak shapes among domestic pigeons, providing a nuanced understanding of their complexity. Understanding beak diversity in pigeons, especially those found in Turkey, enhances our knowledge of avian evolution and adaptation processes. The study utilized 48 skulls from 4 pigeon breeds, including wild rock pigeons and domestic pigeons of Tumbler, Mardin and Van breeds, all free from pathological lesions and adults. Geometric morphometric analyses of beak shape were conducted using dorsal and lateral photographs, with landmarks placed using tpsDig software. MorphoJ software facilitated procrustes analysis and principal component analysis (PCA) to assess morphological variability and differentiate pigeon breeds based on shape patterns, with significance set at <i>p</i> < 0.05. PCA revealed significant shape variations among pigeon breeds, with 47 principal components identified for lateral beak views and 36 principal components for dorsal views. Canonical variates analysis further distinguished morphological patterns among breeds, indicating distinct shape variations in both dorsal and lateral views, elucidating the unique characteristics of each breed's beak morphology. Our results demonstrate statistically significant differences in pigeon beak shape, particularly in the lateral view, confirming the importance of these variations (<i>p</i> < 0.05) and suggesting that such differences occur less than 5% of the time under the null hypothesis.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141735633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ermiş Özkan, Kozet Avanus, Nicoleta Manuta, Sedat Aydoğdu, Yusuf Altundağ
{"title":"Shape variations of pelvis in different classes of dogs using geometric morphometry","authors":"Ermiş Özkan, Kozet Avanus, Nicoleta Manuta, Sedat Aydoğdu, Yusuf Altundağ","doi":"10.1111/ahe.13092","DOIUrl":"10.1111/ahe.13092","url":null,"abstract":"<p>The <i>ossa coxae</i> are the bones that connect the hindlimbs to the axial skeleton. The right and left <i>os coxae</i> join at the median plane to form the pelvis. In this study, variations in pelvis shape and the asymmetric structure of the pelvis were investigated across different classes of dogs. To achieve this, computed tomography images of the pelvis were obtained from 35 dogs, and 3D modelling of the pelvis was created. Subsequently, 45 landmarks were identified on these models. As a result of the Principal Component Analysis, the shape variation was observed in the pelvic canal and <i>crista iliaca</i>. Directional asymmetry between Principal Component 1 and Principal Component 2 accounted for 33.84% of the total variation, while fluctuating asymmetry contributed 23.66%. Canonical variate analysis revealed that canonical variate (CV) 1 explained 56.56% of the total variation between groups, with CV 2 explained 28.98%. Male dogs exhibited greater pelvic variation than females. Procrustes ANOVA indicated that the greatest proportion of shape variation corresponds to the effect of differences among individuals. While directional asymmetry was statistically significant, fluctuating asymmetry was not. Male dogs displayed more pronounced pelvic shape asymmetry, typically towards the right. Gundogs had a narrower pelvic canal and a wide <i>crista iliaca</i>, whereas terriers had a wider pelvic canal and smaller <i>crista iliaca</i> in shape. Geometric morphometry enables statistical analysis and the derivation of average shapes from samples, making it a vital tool in veterinary anatomy. This study provides insights into pelvic geometric morphometry across different classes of dogs.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 4","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141621721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Raphael A. B. Gonçalves, Sheila C. Rahal, Jeana P. Silva, Guilherme R. Cassanego, Maria J. Mamprim, Luna S. Rolim, Carlos R. Teixeira, Letícia R. Inamassu
{"title":"Radiographic evaluation of the forelimb bone development in maned wolves (Chrysocyon brachyurus)","authors":"Raphael A. B. Gonçalves, Sheila C. Rahal, Jeana P. Silva, Guilherme R. Cassanego, Maria J. Mamprim, Luna S. Rolim, Carlos R. Teixeira, Letícia R. Inamassu","doi":"10.1111/ahe.13091","DOIUrl":"10.1111/ahe.13091","url":null,"abstract":"<p>This study aimed to assess the fusion of growth plates and the development of secondary ossification centres in the forelimb bones of maned wolves (<i>Chrysocyon brachyurus</i>), contrasting the findings with established data from domestic dogs. Three maned wolves, comprising one male and two females, initially aged between 3 and 4 months, were subjected to monthly radiographic evaluations until 10–11 months of age, followed by bimonthly assessments until 18–19 months of age, encompassing both forelimbs. The closure times of growth plates were observed as follows: supraglenoid tubercle (7–8 months), proximal humerus (17–19 months), distal humerus (8–9 months), medial epicondyle of the humerus (8–9 months), proximal ulna (9–10 months), proximal radius (13–15 months), distal ulna (13–15 months) and distal radius (17–19 months). Statistical analysis revealed significant differences in the areas of secondary ossification centres in the proximal epiphyses of the humerus and radius, respectively, observed from the initial evaluation at 8–9 months and 6–7 months. Conversely, the epiphyses of the supraglenoid tubercle, distal humerus, proximal ulna, distal ulna, medial epicondyle of the humerus and distal radius did not exhibit significant area differences between 3–4 months and 4–5 months, yet notable distinctions emerged at 5–6 months. In summary, while the radiographic appearance of epiphyseal growth plates and secondary ossification centres in maned wolves resembles that of domestic dogs, closure times vary. These findings contribute to understanding the dynamics of epiphyseal growth plates in this species.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 4","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141604485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali Koçyiğit, İsmail Demircioğlu, Yasin Demiraslan, Funda Aksünger Karaavcı
{"title":"Examination of 3D sella turcica models in three species of ruminants","authors":"Ali Koçyiğit, İsmail Demircioğlu, Yasin Demiraslan, Funda Aksünger Karaavcı","doi":"10.1111/ahe.13090","DOIUrl":"10.1111/ahe.13090","url":null,"abstract":"<p>Sella turcica is an important anatomical structure that contains the pituitary gland. Changes observed on the sella turcica facilitate the identification of diseases such as Down syndrome, Seckel syndrome and tuberculum sellae meningioma in humans. Therefore, studies in this region are critical for a better understanding of sella turcica. The crania of six adult male tuj sheep, five adult male hair goats and five adult male gazelles were used in the study. Cross-sectional images of the cranium were captured using computed tomography. Cross-sectional images were used to model the sella turcica region in 3D, and the region was analysed morphologically and morphometrically. It was observed in the study that fossa hypophysialis, dorsum sella and processus clinoideus caudalis were clearly observed on the sella turcica. The processus clinoideus caudalis in some animals was not split into two. In morphometric analysis, the sella turcica length and sella turcica height (rostral border) parameters were statistically significant between the groups (<i>p</i> < 0.05). Consequently, this study morphological and morphometric examinations were carried out on the sella turcica of different ruminant species, and the differences between the groups were discussed. This study is expected to contribute to the very limited number of related studies, taxonomy and clinical studies in this field.</p>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"53 4","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141560278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}