Anatomia Histologia Embryologia最新文献

Development of a Three-Layered Fascial Architecture in the Rabbit Carotid Sheath: Histological Findings Consistent With Mechanical Influences 兔颈动脉鞘三层筋膜结构的发展：组织学结果与机械影响一致

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-29 DOI: 10.1111/ahe.70170

Han-xiao Zhao, Hui-di Zhou, Ying Wei, Zhen-long Zhao, Li-li Peng, Yan Li, Ming-an Yu

{"title":"Development of a Three-Layered Fascial Architecture in the Rabbit Carotid Sheath: Histological Findings Consistent With Mechanical Influences","authors":"Han-xiao Zhao, Hui-di Zhou, Ying Wei, Zhen-long Zhao, Li-li Peng, Yan Li, Ming-an Yu","doi":"10.1111/ahe.70170","DOIUrl":"https://doi.org/10.1111/ahe.70170","url":null,"abstract":"<div>\u0000 \u0000 <p>Current understanding of the fascial structures within the human carotid sheath (CS) is largely based on static anatomical descriptions, with limited knowledge of their dynamic developmental process. This study aimed to characterise the developmental progression of the fascial architecture surrounding neurovascular components within the CS across four stages in the New Zealand White rabbit. Twenty New Zealand White rabbits were divided into four groups (<i>n</i> = 5 each): early foetal (Gestational Day 10), late foetal (Gestational Day 20), newborn (3 days postnatal) and adult (3–4 months). Whole transverse cervical sections were processed with H&E staining and α-SMA immunohistochemistry. In the rabbit, the common carotid artery, internal jugular vein and vagus nerve within the CS consistently exhibited a three-layered fascial organisation comprising an inner fascial layer, an intermediate zone and an outer fascial layer. The arterial inner fascia showed the earliest onset and most pronounced thickening, forming a dense multilayered fibrous structure, while the venous and neural inner fasciae remained comparatively thin. This differential thickening pattern corresponds to the varying levels of intrinsic pulsatile haemodynamic stress among the three structures. The outer fascial layers of adjacent structures showed potential fusion, likely reflecting extrinsic mechanical interactions from surrounding tissues. This study demonstrates a consistent three-layered fascial organisation within the CS across developmental stages, and these histomorphological findings are consistent with a possible role of dual mechanical influences in CS development.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148848924","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}

引用次数: 0

Ultrastructural Organization of Epididymis in the Cattle Egret (Bubulcus ibis) During Breeding Season 繁殖季节牛白鹭附睾的超微结构组织。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-28 DOI: 10.1111/ahe.70172

S. O. Ajeigbe, M. Zakariah, J. Imam, T. A. Muazu, M. Zubair, H. Owolabi, M. H. Suleiman

{"title":"Ultrastructural Organization of Epididymis in the Cattle Egret (Bubulcus ibis) During Breeding Season","authors":"S. O. Ajeigbe, M. Zakariah, J. Imam, T. A. Muazu, M. Zubair, H. Owolabi, M. H. Suleiman","doi":"10.1111/ahe.70172","DOIUrl":"10.1111/ahe.70172","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents an ultrastructural analysis of the epididymal epithelium in the cattle egret (<i>Bubulcus ibis</i>), aimed at elucidating its cellular diversity and regional specialization. Using transmission electron microscopy, we examined the proximal and caudal regions of the epididymis to identify and compare constituent cell types based on established morphological criteria. Principal cells were distinguished by large euchromatic nuclei and abundant rough endoplasmic reticulum, narrow cells by elongated nuclei and slender cytoplasmic profiles, and clear cells by pale cytoplasm with endocytic vesicles. Myeloid cells exhibited irregular nuclear morphology and cytoplasmic vacuolation, with two morphologically distinct populations observed. The distribution of these cell types across proximal and distal regions underscores the compartmentalization necessary for sperm maturation, storage and protection. Specialized organelles, including large mitochondria, secretory granules and rough endoplasmic reticulum, highlight the metabolic and secretory demands placed on the epithelium. Observations of apoptotic bodies, immune cell heterogeneity and clearance mechanisms suggest ongoing cellular turnover and possible immune involvement. However, given the descriptive nature of this study and the absence of complementary molecular or immunohistochemical data, interpretations regarding immune surveillance must remain tentative. Collectively, these findings provide the first detailed ultrastructural description of the cattle egret epididymis, contributing to a broader understanding of avian reproductive physiology and comparative anatomy. Future studies integrating advanced imaging, immunohistochemistry and molecular profiling will be essential to validate the hypothesized roles of these cell populations and to clarify their contributions to male fertility and reproductive health.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842050","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}

引用次数: 0

Spatial Coordinates of the Rostral Junction Points of the Genu of the Corpus Callosum and the Habenular Commissure in Tree Shrew, Mouse and Rat Brains: A Preliminary Study 树鼩、小鼠和大鼠脑胼胝体膝部吻侧连接点与Habenular连接点的空间坐标：初步研究。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-26 DOI: 10.1111/ahe.70171

Rong-Jun Ni

{"title":"Spatial Coordinates of the Rostral Junction Points of the Genu of the Corpus Callosum and the Habenular Commissure in Tree Shrew, Mouse and Rat Brains: A Preliminary Study","authors":"Rong-Jun Ni","doi":"10.1111/ahe.70171","DOIUrl":"10.1111/ahe.70171","url":null,"abstract":"<div>\u0000 \u0000 <p>Spatial coordinate systems are essential for precise brain localization and atlas-based comparison, yet current stereotaxic frameworks mainly rely on cranial landmarks such as bregma–lambda (BL) or anterior commissure–posterior commissure (AP). Here, we defined the rostral junction point of the genu of the corpus callosum (GCCrj) that refers to the central convergence point of bilateral genu of the corpus callosum structures at the rostral part on coronal histological slices. The GCCrj and rostral junction point of the habenular commissure (HBCrj) constituted the new GCCrj-HBCrj (GH) coordinate plane, which is located at the midline of the cerebral hemispheres. We described and delineated the GCCrj and HBCrj reference points across mouse, rat and tree shrew brains. We performed conversions between the GH points and the points of the existing BL and AP coordinate systems in standard brain atlases for each species. The height values for the GH system's G and H points were −0.55, +0.15 and −0.05 mm across the three species, respectively. The horizontal plane of the GH system showed superior agreement with the horizontal plane of the BL coordinate system compared to that of the AP system within existing atlases. In summary, this study provides the spatial coordinates of the GCCrj and HBCrj as new reference coordinates for a multi-species brain atlas. The two landmarks GCCrj and HBCrj are positioned on both the horizontal plane and cerebral mid-sagittal vertical plane, running parallel to the BL reference plane. The novel GH coordinate system is compatible with established standard stereotaxic brain coordinate systems and may provide an alternative for a mammalian brain coordinate atlas.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148834032","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}

引用次数: 0

Influence of the Reproductive and Non-Reproductive Season on Hepatic Fat Accumulation in Trachemys sp.: Correlations of Computed Tomography, Histopathology, Biochemistry and Coelioscopy 生殖季节和非生殖季节对气管动物肝脏脂肪堆积的影响：计算机断层扫描、组织病理学、生物化学和腹腔镜检查的相关性。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-26 DOI: 10.1111/ahe.70169

Luna S. Rolim, Maria J. Mamprim, Sheila C. Rahal, Vivian F. Rech, Raphael A. B. Gonçalves, Jeana P. Silva, Fernanda B. C. Moura, Noeme S. Rocha

引用次数: 0

Postnatal Cell-Type-Specific Localization of EGFR and Its Ligands (EGF, TGF-α and AREG) in the Rat Testis 出生后大鼠睾丸中EGFR及其配体（EGF、TGF-α和AREG）的细胞类型特异性定位

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-18 DOI: 10.1111/ahe.70167

Yahy Abood Kareem Alesawi, Emel Ergün

{"title":"Postnatal Cell-Type-Specific Localization of EGFR and Its Ligands (EGF, TGF-α and AREG) in the Rat Testis","authors":"Yahy Abood Kareem Alesawi, Emel Ergün","doi":"10.1111/ahe.70167","DOIUrl":"https://doi.org/10.1111/ahe.70167","url":null,"abstract":"<div>\u0000 \u0000 <p>The epidermal growth factor receptor (EGFR) signalling network and its ligands, including epidermal growth factor (EGF), transforming growth factor-α (TGF-α) and amphiregulin (AREG), are involved in the regulation of testicular development and function. However, their postnatal cell-type-specific localization patterns in the testis remain incompletely understood. This study investigated the postnatal cell-type-specific localization patterns of EGFR, EGF, TGF-α and AREG in the rat testis using histological and immunohistochemical approaches at four developmental stages. EGFR immunoreactivity was predominantly localized in Sertoli cells, peritubular myoid cells and vascular smooth muscle cells, whereas Leydig cells exhibited weaker immunoreactivity and germ cells lacked staining. In contrast, EGF and AREG exhibited strong and persistent expression in Leydig cells throughout postnatal development. TGF-α demonstrated stage-dependent immunoreactivity in Leydig cells and spermatids. Although semiquantitative scores did not reveal significant stage-dependent differences, distinct cell-type-specific localization patterns were observed throughout postnatal development. These findings indicate that EGF family signalling in the postnatal rat testis is primarily mediated through somatic cell populations and support the presence of a paracrine regulatory network involved in the organization of the testicular microenvironment and the regulation of spermatogenesis.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784131","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}

引用次数: 0

Histomorphometric and Histochemical Changes in the Mare Tuba Uterina During the Oestrous Cycle and Follicular Cyst Condition 发情周期和卵泡囊肿条件下子宫母母的组织形态学和组织化学变化

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-15 DOI: 10.1111/ahe.70166

Bui Van Dung, Nguyen Thi Lan Anh, Nguyen Hoai Nam

{"title":"Histomorphometric and Histochemical Changes in the Mare Tuba Uterina During the Oestrous Cycle and Follicular Cyst Condition","authors":"Bui Van Dung, Nguyen Thi Lan Anh, Nguyen Hoai Nam","doi":"10.1111/ahe.70166","DOIUrl":"https://doi.org/10.1111/ahe.70166","url":null,"abstract":"<div>\u0000 \u0000 <p>This study evaluated histomorphometric and histochemical changes in the mare tuba uterina during different reproductive stages and under follicular cyst conditions. Forty nonpregnant mares were classified into follicular, luteal, post-ovulation and follicular cyst groups (<i>n</i> = 10/group). Histological evaluation of the isthmus, ampulla and infundibulum was performed using haematoxylin and eosin staining, while periodic acid–Schiff (PAS) staining was used to assess epithelial secretory activity. Morphometric parameters included number of primary mucosal folds, fold length, epithelial height and fold thickness. Descriptive observations indicated that the infundibulum possessed the most elaborate mucosal architecture, whereas the isthmus exhibited the simplest organization. Comparisons among reproductive stages were performed separately within each oviductal region. Across all oviductal regions, the follicular phase demonstrated the highest morphometric values, characterized by increased fold number, epithelial height and fold dimensions (<i>p</i> < 0.05). In contrast, most morphometric parameters decreased during the luteal and post-ovulation stages. For most variables, post-ovulation values remained higher than those observed during the luteal phase. The ampulla exhibited the strongest PAS reactivity during the luteal phase, with abundant apical PAS-positive granules indicating enhanced epithelial secretory activity, whereas moderate staining was observed during the follicular phase. Mares with follicular cysts showed the lowest morphometric values in all oviductal regions and weak, irregular PAS reactivity. These findings demonstrate that the mare tuba uterina undergoes pronounced cyclical remodelling influenced by ovarian status. Follicular cysts were associated with altered histological and secretory characteristics of the oviduct, which may compromise the physiological environment required for normal reproductive function.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753765","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}

引用次数: 0

Distinctive Innervation Patterns of Thigh Extensor Muscles in Anura: A Morphogenetic Hypothesis of Nerve Re-Routing Within the Hindlimb Plexus in the Tetrapod Evolutionary Process 无尾动物股伸肌的独特神经支配模式：四足动物进化过程中后肢神经丛神经重定向的形态发生假说

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-13 DOI: 10.1111/ahe.70165

Hidaka Anetai, Masaki Waki, Masaya Ohishi, Saori Anetai, Takashi Amari, Ryuhei Kojima, Kounosuke Tokita

{"title":"Distinctive Innervation Patterns of Thigh Extensor Muscles in Anura: A Morphogenetic Hypothesis of Nerve Re-Routing Within the Hindlimb Plexus in the Tetrapod Evolutionary Process","authors":"Hidaka Anetai, Masaki Waki, Masaya Ohishi, Saori Anetai, Takashi Amari, Ryuhei Kojima, Kounosuke Tokita","doi":"10.1111/ahe.70165","DOIUrl":"https://doi.org/10.1111/ahe.70165","url":null,"abstract":"<div>\u0000 \u0000 <p>In mammals, thigh muscles are compartmentalized into three groups: extensor, flexor, and adductor muscles, and these are innervated by the femoral nerve, sciatic nerve (tibial and common peroneal nerve divisions), and obturator nerve, respectively. However, amphibians show a different pattern of innervation. In this study, the extensor and flexor muscles, their innervation, and relation to the muscle compartment (by the lateral femoral intermuscular septum) were examined and noted in bullfrog thighs. Ten thighs of five bullfrog specimens were examined macroscopically and partially histologically. The extensor and flexor muscles were identified, and these two muscle groups were separated by the lateral femoral intermuscular septum in the dorsal thigh of bullfrogs. However, the nerve from the common peroneal nerve division of the sciatic nerve coursed dorsal to the ischiopubis and innervated both most of the extensor muscles (vastus lateralis, rectus femoris, and vastus intermedius muscles) and the flexor muscles, unrelated to the muscle compartment by the septum. Additionally, the vastus medialis muscle was innervated by the crural nerve (mammalian femoral nerve-like nerve) that coursed ventral to the ischiopubis. Thus, the extensor quadriceps femoris muscle is innervated by two types of nerves that take different routes to reach the muscles from the plexus. The innervating branches of the three extensor muscles are speculated to have been re-routed from the dorsal to the ventral side of the ischiopubis and merged into the crural nerve, thereby giving rise to the mammalian femoral nerve in the tetrapod evolutionary process. This nerve re-routing of the branches to the extensor muscles is presumably attributed to interspecific differences in hindlimb position and septum structure.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753418","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}

引用次数: 0

A Case of Polydactyly in a Roe Deer (Capreolus capreolus) From Germany 德国狍多指畸形一例。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-07 DOI: 10.1111/ahe.70164

Johannes Lang, Sarah P. Stubbe, Carsten Staszyk, Michael Lierz

引用次数: 0

Congenital Diaphragm Defect in a Neonatal Southern White Rhinocerus (Ceratotherium simum simum) 新生儿南白犀牛（Ceratotherium simum simum）先天性膈肌缺损。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-07 DOI: 10.1111/ahe.70163

Monika Egerbacher, Doreen Kendel, Ingrid Walter, Andreas Artmann

引用次数: 0

Amylin Coexisting With Peptide YY (PYY) and Amylin/PYY Cells Correspond to Subpopulations of Glucagon- and Glucagon-Like Peptide-1-Immunoreactive Cells in the Japanese Eel (Anguilla japonica) Pancreas 胰淀素与肽YY （PYY）共存，胰淀素/PYY细胞与胰高血糖素和胰高血糖素样肽-1免疫反应细胞亚群对应。

IF 0.9 4区农林科学

Anatomia Histologia Embryologia Pub Date : 2026-08-06 DOI: 10.1111/ahe.70161

Hirohumi Suzuki, Toshiharu Yamamoto

{"title":"Amylin Coexisting With Peptide YY (PYY) and Amylin/PYY Cells Correspond to Subpopulations of Glucagon- and Glucagon-Like Peptide-1-Immunoreactive Cells in the Japanese Eel (Anguilla japonica) Pancreas","authors":"Hirohumi Suzuki, Toshiharu Yamamoto","doi":"10.1111/ahe.70161","DOIUrl":"10.1111/ahe.70161","url":null,"abstract":"<div>\u0000 \u0000 <p>The distribution of amylin-like substances was investigated by immunohistochemistry in the pancreas of the Japanese eel (<i>Anguilla japonica</i>). Amylin-immunoreactive cells were observed in pancreatic islets. These immunostaining profiles were not observed by the preabsorption of the anti-amylin serum with synthetic amylin, indicating that the serum specifically recognized eel amylin-like peptide. Almost all amylin-immunoreactive cells were immunopositive for peptide YY, suggesting that amylin and peptide YY co-secreted from the islet cells might participate in the modulation of insulin and glucagon secretion in the pancreatic islets. In addition, weakly glucagon-immunopositive cells, but not densely glucagon-immunopositive cells, also corresponded to amylin-immunoreactive cells. The subpopulation of glucagon-immunoreactive and glucagon-like peptide-1-immunoreactive cells was also immunopositive for peptide YY. These results suggest that amylin and peptide YY, and also presumably glucagon-like peptide-1, are co-secreted from the amylin/peptide YY cells, and these three peptides modulate food intake through the central nervous system in addition to intrainsular functions.</p>\u0000 </div>","PeriodicalId":49290,"journal":{"name":"Anatomia Histologia Embryologia","volume":"55 5","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148681115","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}

引用次数: 0