Anatomy & Cell Biology最新文献

Scapular notch, spinoglenoid notch and scapular dimensions: implications on the safe zone of the suprascapular nerve. 肩胛骨切迹、椎骨切迹和肩胛骨尺寸：对肩胛上神经安全区的影响。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-18 DOI: 10.5115/acb.24.186

Jhonatan Duque-Colorado, Laura García-Orozco, Andrés Riveros, Mariano Del Sol

{"title":"Scapular notch, spinoglenoid notch and scapular dimensions: implications on the safe zone of the suprascapular nerve.","authors":"Jhonatan Duque-Colorado, Laura García-Orozco, Andrés Riveros, Mariano Del Sol","doi":"10.5115/acb.24.186","DOIUrl":"https://doi.org/10.5115/acb.24.186","url":null,"abstract":"The suprascapular nerve corresponds to one of the supraclavicular branches of the brachial plexus, and its route exposes it to being injured during some surgical procedures. Morphometric analysis of the scapula has been proposed as a tool for preventing injuries to the suprascapular nerve. The present investigation aimed to determine the safe distances for approaching the suprascapular nerve at the level of the scapular notch (SPN) and spinoglenoid notch, in addition to establishing its relationship with the type of SPN and with two scapular dimensions: major longitudinal axis (MLA) and major transverse axis (MTA). For this purpose, a descriptive-correlative, quantitative, non-experimental and transversal study was carried out, in which 82 dry scapulae from adult individuals of Chilean origin were investigated. The main results of this study found that prevalences were highest for SPNs types II (36.2%), I (29.3%), and III (26.0%), with average distances that were considered safe in all types of SPNs. Furthermore, there was a positive correlation, with P<0.05, between the MTA (r=0.526; r=0.634), MLA (r=0.284) and the safe distances for the suprascapular nerve at the level of the SPN and incisura spinoglenoid of the scapulae studied. Scapular dimensions such as the MTA and the MLA could, therefore, be used to predict a safe zone for the suprascapular nerve, potentially contributing to a reduction in the current rate of injury of the suprascapular nerve in surgical procedures involving the deltoid and scapular regions.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variability of anterior external arcuate fibers in the human medulla oblongata. 人类延髓前外弓纤维的变异性

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-18 DOI: 10.5115/acb.24.188

Parul Kaushal, Dibakar Borthakur, Subrata Basu Ray

{"title":"Variability of anterior external arcuate fibers in the human medulla oblongata.","authors":"Parul Kaushal, Dibakar Borthakur, Subrata Basu Ray","doi":"10.5115/acb.24.188","DOIUrl":"https://doi.org/10.5115/acb.24.188","url":null,"abstract":"Anterior external arcuate fibers (AEAF) are efferents of the arcuate nuclei, which are located on the ventral surface of pyramids. Several types of fibre bundles superficial to the pyramids have been described in early and mid 20th century. Recently, few of these have been studied in detail. Objective of present study was to observe the morphology of AEAF in the Indian population. Distinct AEAF were noted in 13 out of 50 brain specimens. Based on their relation to olive, AEAF were further classified as supraolivary, preolivary and supraolivary fibers and their prevalence noted as 25%, 15%, and 9% respectively. Supraolivary and preolivary fibers were present together in 9 brainstem sides, while co-presence of preolivary and circumolivary fibers was noted in only 1 side. All three types of fibres were observed together in 5 brainstem sides. When present bilaterally, supraolivary and preolivary fibers were seen in 92.30% and 66.66% of brainstem respectively, while circumolivary fibers were seen bilaterally in 28.57% of brainstem. Supraolivary and circumolivary fibers exhibited variable morphology as single, double and multiple fiber bundles. Morphometric analysis revealed presence of thicker supraolivary fiber bundle on right side, while thicker circumolivary fiber bundles were noted on left side. Present study will add to knowledge of this variable fiber bundle pattern, which has been reported to play an important role in regulation of crucial physiological functions such as breathing and cardiorespiratory mechanisms. These observations open avenues for further research into developmental factors involved in migration of neurons from the rhombic lip.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Papillary muscles: morphological differences and their clinical correlations. 乳头肌：形态差异及其临床相关性。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-18 DOI: 10.5115/acb.24.210

Neha Xalxo, Simarpreet Kaur, Mohit Chauhan, Ekta Sharma, Laishram Sophia, Sneh Agarwal, Pooja Jain

{"title":"Papillary muscles: morphological differences and their clinical correlations.","authors":"Neha Xalxo, Simarpreet Kaur, Mohit Chauhan, Ekta Sharma, Laishram Sophia, Sneh Agarwal, Pooja Jain","doi":"10.5115/acb.24.210","DOIUrl":"https://doi.org/10.5115/acb.24.210","url":null,"abstract":"The complex architecture of the papillary muscles (PMs) of the ventricles plays a crucial role in cardiac function and pathology. This comparative study aimed to examine the differences in PMs morphology between the right and left ventricles, focusing on their number, location, and shape. A total of 38 grossly normal hearts from donated bodies were dissected, and the number, location, and shape of PMs in both ventricles were observed. In this study, the left ventricle predominantly exhibited a single PM with 71.05% on the sternocostal surface and 57.89% on the diaphragmatic surface. The right ventricle showed a higher prevalence of single PM, at 89.47% on the sternocostal surface and 63.16% on the diaphragmatic surface. Broad-based shape of the PM emerged as the predominant variant, constituting 55.26% and 44.73% on the sternocostal and diaphragmatic surfaces of the left ventricle, respectively. In contrast, conical-shaped PM predominated in the right ventricle. Unique findings included \"H\" and \"b\" shaped muscles, conjoint PMs were observed exclusively in the left ventricle, and small papillary projections with direct tendinous cord attachment in the right ventricle. A distinct webbed shaped configuration of PM was exclusively observed in the right ventricle in only one specimen. No significant difference (P=0.84) was noted in muscle bellies between ventricular surfaces. This study emphasizes the complexity and variability in PM morphology, highlighting the importance of a thorough understanding of these structures for cardiothoracic surgeons, radiologists, and cardiologists to enhance interventional techniques.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long linguofacial trunk with infrahyoid origin. 长舌面干，起源于舌下。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-08 DOI: 10.5115/acb.24.171

Răzvan Costin Tudose, Mugurel Constantin Rusu, Corneliu Toader, Petrinel Mugurel Rădoi

引用次数: 0

Anatomical assessment of the Kambin's triangle for percutaneous posterolateral transforaminal endoscopic surgery of lumbar intervertebral discs: a magnetic resonance imaging based study. 腰椎间盘经皮后外侧经椎间孔内窥镜手术的 Kambin 三角区解剖学评估：一项基于磁共振成像的研究。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-08 DOI: 10.5115/acb.24.112

Naeeme Nikpour, Zahra Fazelinejad, Mozhgan Sametzadeh, Mohammad Ardeshiri Lordjani, Ali Reza Eftekhari Moghadam

{"title":"Anatomical assessment of the Kambin's triangle for percutaneous posterolateral transforaminal endoscopic surgery of lumbar intervertebral discs: a magnetic resonance imaging based study.","authors":"Naeeme Nikpour, Zahra Fazelinejad, Mozhgan Sametzadeh, Mohammad Ardeshiri Lordjani, Ali Reza Eftekhari Moghadam","doi":"10.5115/acb.24.112","DOIUrl":"https://doi.org/10.5115/acb.24.112","url":null,"abstract":"The aim of the present study was to utilize magnetic resonance imaging (MRI) as a noninvasive tool for evaluation of the Kambin's triangle safe zone. Lumbar MRIs of 67 healthy subjects were analyzed. On the coronal plane, the distance from the superior endplate to the nerve root exiting from the dura (distance a), the distance from the lateral aspect of the dura to the medial aspect of the nerve root (distance b), and the angle between the nerve root and plane of the corresponding disc (angle α) was measured. On the axial plane, the vertical distance from the upper facet surface to the exiting nerve root and root-disc distance was also measured. On the sagittal plane, foraminal height, diameter, nerve root-disc distance, and nerve root-pedicle distance were measured. On the coronal plane, right and left α angle was 50.78±4.43 (range, 48.52-51.84 degrees) and 51.07±4.08 (range, 49.25-51.91) degrees, respectively. Distance of right 'a' was 17.86±3.86 mm (range, 10.56-24.84 mm) and left 'a' was 18.03±3.73 mm (range, 10.98-24.82 mm), distance of right 'b' was 15.57±2.61 mm (range, 10.54-20.70 mm) and left 'b' was 15.46±2.68 mm (range, 10.93-19.23 mm). All these measurements increased as the spine level went down. Foraminal height and diameter decreased caudally. Nerve root-facet distance did not show change as the level went down. The study indicated that radiologic measurement is feasible to evaluate the anatomy of the Kambin's triangle. At lower lumbar levels, the exiting nerve root is at risk of injury.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cost-effectiveness and other considerations for different research techniques applied in ancient DNA analysis. 古 DNA 分析中应用的不同研究技术的成本效益及其他考虑因素。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-11-06 DOI: 10.5115/acb.24.125

Jong Ha Hong, Hisashi Fujita, Jaehyup Kim, Dong Hoon Shin

引用次数: 0

Histological features of the Purkinje neurons of the Albino rat (Rattus norvegicus) following letrozole administration. 来曲唑给药后白化大鼠（Rattus norvegicus）浦肯野神经元的组织学特征。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-10-31 DOI: 10.5115/acb.24.088

Chaudhry Talha Hannan, Munguti Kilonzo Jeremiah, Pamela Mandela Idenya

{"title":"Histological features of the Purkinje neurons of the Albino rat (Rattus norvegicus) following letrozole administration.","authors":"Chaudhry Talha Hannan, Munguti Kilonzo Jeremiah, Pamela Mandela Idenya","doi":"10.5115/acb.24.088","DOIUrl":"https://doi.org/10.5115/acb.24.088","url":null,"abstract":"Aromatase inhibitors are increasingly being used as adjuvant therapy for hormone-responsive cancers. These drugs may reduce the endogenous estrogen production in the cerebellum. Prolonged use has been associated with symptoms such as ataxia, poorer balance performance and diminished verbal memory, suggesting impaired cerebellar function. Thus, this study sought to outline the structural basis for the cerebellar deficits observed. Twenty-seven male rats (3 baseline, 15 experimental, 9 control) aged three months were recruited with the intervention group receiving 0.5 mg/kg of letrozole daily for 50 days by oral gavage while the control group received normal saline. Their cerebella were harvested for histological processing on days 20, 35, and 50. Photomicrographs were taken and analysed using Fiji ImageJ software. The dendritic spine densities and Purkinje linear densities were coded and analyzed using IBM SPSS Statistics version 25.0. A P-value of ≤0.05 was considered significant. A temporal decline in the Purkinje linear density as well as pyknosis and cytoplasmic eosinophilia was noted in the intervention group (P=0.1). Further, the dendritic spine density of the Purkinje neurons in the intervention group was markedly reduced (P=0.01). The reduction in the linear cell density and the dendritic spine density of the Purkinje cells following letrozole administration may provide an anatomical basis for the functional cerebellar deficits seen in chronic aromatase inhibitor use.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142543204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anatomical and morphometric features of the profunda brachii artery. 肱深动脉的解剖和形态特征。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-10-24 DOI: 10.5115/acb.23.243

Yüsra Nur Şanlıtürk, Nurşen Zeybek, Özcan Gayretli, Adnan Öztürk

引用次数: 0

A new metric method for sex estimation using three-dimensional imaging of the nuchal crest. 利用颈嵴三维成像进行性别估计的新度量方法。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-10-17 DOI: 10.5115/acb.24.114

Yun Taek Shim, Ye Hwon Jeong, Nahyun Aum, Hong-Il Ha, Minsung Choi, Jin Young Hyun, Ho-Seung Lee, Yi-Suk Kim

{"title":"A new metric method for sex estimation using three-dimensional imaging of the nuchal crest.","authors":"Yun Taek Shim, Ye Hwon Jeong, Nahyun Aum, Hong-Il Ha, Minsung Choi, Jin Young Hyun, Ho-Seung Lee, Yi-Suk Kim","doi":"10.5115/acb.24.114","DOIUrl":"https://doi.org/10.5115/acb.24.114","url":null,"abstract":"In Walker's nonmetric method, the nuchal crest serves as the representative region for indicating sexual dimorphism in cranial bones. However, the accuracy of sex estimation using the nuchal crest is lower than that using other anatomical regions. Furthermore, because of the protruding processes and structurally challenging features characterized by uneven and rough surfaces, there is a lack of metric methods for sex estimation, making quantification challenging. In this study, we aimed to validate a derived metric method for sex estimation by reconstructing the nuchal crest region in three-dimensional (3D) images obtained from computed tomography scans of cranial bones and compare its accuracy with that of the nonmetric method. A total of 648 images were collected, with 100 randomly selected for use in the nonmetric method. We applied our metric method to the remaining 548 images. Our findings showed that the surface area of the nuchal crests was greater in male individuals than in female individuals. The nuchal crest surface area quantified by the metric method increased the accuracy of sex estimation by 48% compared with that by the nonmetric method. Our metric method for sex estimation, which quantifies the nuchal crest surface area using 3D images of the skull, led to a high sex estimation accuracy of 93%. Future studies should focus on proposing and quantifying new measurement methods for areas showing sexual characteristics in the skull that are difficult to measure, thereby enhancing the accuracy and reliability of sex estimation in human skeletal identification across various fields.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Profiles, tissue and microbial integrity of cadavers used in medical faculties in South-western Uganda: implication in anatomical education. 乌干达西南部医学院使用的尸体的外形、组织和微生物完整性：对解剖学教育的影响。

IF 1.4

Anatomy & Cell Biology Pub Date : 2024-10-11 DOI: 10.5115/acb.24.159

Elisa Ndyamuhakyi, Ibe Michael Usman, Jackim Nabona, Victor Adolf Fischer, Emeka Anyanwu, Elna Owembabazi, Wusa Makena, Ekom Monday Etukudo

{"title":"Profiles, tissue and microbial integrity of cadavers used in medical faculties in South-western Uganda: implication in anatomical education.","authors":"Elisa Ndyamuhakyi, Ibe Michael Usman, Jackim Nabona, Victor Adolf Fischer, Emeka Anyanwu, Elna Owembabazi, Wusa Makena, Ekom Monday Etukudo","doi":"10.5115/acb.24.159","DOIUrl":"https://doi.org/10.5115/acb.24.159","url":null,"abstract":"Cadaveric dissection has remained an integral part of anatomical education globally; hence, the profiles of cadavers, their gross tissue and microbial integrity has great implication in anatomical education. This study determined the profiles, gross tissue and microbial integrity of cadavers used in South-western Uganda (SWU) medical schools. A cross-sectional study was carried out for three months in anatomy and microbiology laboratories of SWU medical teaching institutions. Ethical approval was obtained, cadavers were proportionately selected and examined grossly, and surface swabs taken for microbial analysis. Data collected was entered into Microsoft Excel, cleaned, and exported to Stata version 17 for analysis. Majority of cadavers were male (68%), adult (96%), blacks (100%), unknown cause of death (96%), obtained as unclaimed bodies (100%) and with no cadaver record tag (96%). Nearly a half (48%) cadavers had disrupted dentition, 68% had poor muscle integrity and 80% with abnormal fat. About 27% cadavers had poor surface microbial integrity among which 62.5% had a mixture of both bacteria and fungi, 25.0% had only fungi while 12.5% had only bacteria. A high number of cadavers had micro-organisms on their surfaces with majority having a mixture of bacteria and fungi. Majority of cadavers had poor gross tissue integrity. Better cadaver preservation methods should be adopted. To advocate for the establishment of cadaver donation policy and programs through which good quality cadavers can be obtained.","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142399160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0