Geometric morphometric landmark coordinates and cross-sectional geometry data for mouse hemimandibles from 24 mice across three experimental groups

This dataset contains geometric morphometric landmark coordinates and cross-sectional geometry measurements performed on µCT images of mouse hemimandibles from 24 individuals distributed across three experimental groups: ColdDry, ColdWet, and WarmDry. The WarmDry group was reared at 26 °C and fed standard hard pellets. The ColdDry group was reared at 10 °C and fed the same hard pellets. The ColdWet group was reared at 10 °C and fed pellets that were moistened in water for five minutes prior to feeding. Food intake differed among the experimental groups. Mice reared at 10 °C consumed approximately twice as much food as those reared at 26 °C. Additionally, within the cold-reared groups, individuals in the ColdWet group consumed more food than those in the ColdDry group. Landmark coordinates - 12 fixed landmarks (ld 1 to 8, 17, 31, 32 and 41) and 35 sliding semilandmarks (ld 9 to 16, 18 to 30 and 33 to 40) - were collected separately for left and right hemimandibles and are provided as CSV files. A description of the landmark coordinates can be found in ld_description.pdf. Cross-sectional geometric properties were derived from transverse slices at four anatomical regions of the mandible: diastema, anterior molar region, intermediate molar region, and posterior molar region. The cross-sectional variables include the bending index (Imin/Imax × 1000) and the relative amount of cortical bone area (CA/TA × 100). Measurements are provided separately for left and right hemimandibles. Due to specimen quality landmark coordinates are available for 22 right and 23 left hemimandibles, while cross-sectional geometry measurements are available for all 24 individuals per side. Coord_right.csv: the landmark coordinates of 22 mice right hemimandibles. Coord_left.csv: the landmark coordinates of 23 mice left hemimandibles. ImaxImin_allslices_left.xlsx: the bending index (Imin/Imax × 1000) of 24 mice left hemimandibles at 4 different anatomical locations (diastema, anterior molar region, intermediate molar region and posterior molar region). ImaxImin_allslices_right.xlsx: the bending index (Imin/Imax × 1000) of 24 mice right hemimandibles at 4 different anatomical locations (diastema, anterior molar region, intermediate molar region and posterior molar region). M1d_left.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice left hemimandibles at the molar intermediate region. M1d_right.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice right hemimandibles at the molar intermediate region. M1m_left.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice left hemimandibles at the molar anterior region. M1m_right.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice right hemimandibles at the molar anterior region. M2m_left.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice left hemimandibles at the molar posterior region. M2m_right.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice right hemimandibles at the molar posterior region. CATA_allslices_left.xlsx: the relative amount of cortical bone (CA/TA × 100) of 24 mice left hemimandibles at 4 different anatomical locations (diastema, anterior molar region, intermediate molar region and posterior molar region). CATA_allslices_right.xlsx: the relative amount of cortical bone (CA/TA × 100) of 24 mice right hemimandibles at 4 different anatomical locations (diastema, anterior molar region, intermediate molar region and posterior molar region). diastema_left.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice left hemimandibles at the diastema. diastema_right.xlsx: the bending index (Imin/Imax × 1000) and relative amount of cortical bone (CA/TA × 100) of 24 mice right hemimandibles at the diastema. ld_description.pdf: description of fixed and sliding semilandmarks used in the geometric morphometrics analyses This work received financial support from the French government in the framework of the University of Bordeaux's IdEx "Investments for the Future" program / GPR "Human Past" and from the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health, Award Number P30 AR069620. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Research reported in this publication was also supported by NSF BCS-1638553 to MD. The micro-CT core at the University of Michigan School of Dentistry is funded in part by NIH/NCRR S10RR026475-01 and NIH P30 AR069620.本数据集包含几何形态测量学地标坐标（geometric morphometric landmark coordinates）与横截面几何测量数据，上述数据基于小鼠下颌骨半侧标本的显微计算机断层扫描（µCT）图像获取，共涉及3个实验组的24只个体，3个实验组分别为ColdDry、ColdWet与WarmDry。 WarmDry组饲养于26℃环境，喂食标准硬质颗粒饲料；ColdDry组饲养于10℃环境，喂食相同的硬质颗粒饲料；ColdWet组饲养于10℃环境，喂食的颗粒饲料在喂食前需经清水浸润5分钟。 各实验组的摄食量存在差异。10℃环境下饲养的小鼠摄食量约为26℃环境饲养小鼠的2倍；此外，在低温饲养组中，ColdWet组小鼠的摄食量高于ColdDry组。 本次研究共采集12个固定地标点（fixed landmarks，ld 1至8、17、31、32及41）与35个滑动半地标点（sliding semilandmarks，ld 9至16、18至30及33至40），数据分别针对左侧与右侧下颌骨半侧标本采集，并以CSV格式文件提供。地标点坐标的详细说明可参考ld_description.pdf。横截面几何属性源自下颌骨4个解剖区域的横断面切片：牙间隙区（diastema）、前磨牙区（anterior molar region）、中间磨牙区（intermediate molar region）与后磨牙区（posterior molar region）。横截面测量变量包括弯曲指数（bending index，Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。所有测量数据同样分别针对左侧与右侧下颌骨半侧标本提供。 受标本质量限制，仅可获取22例右侧、23例左侧下颌骨半侧标本的地标点坐标数据，而所有24只个体的双侧标本均具备完整的横截面几何测量数据。 Coord_right.csv：包含22例小鼠右侧下颌骨半侧标本的地标点坐标数据。 Coord_left.csv：包含23例小鼠左侧下颌骨半侧标本的地标点坐标数据。 ImaxImin_allslices_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在4个不同解剖位置（牙间隙区、前磨牙区、中间磨牙区与后磨牙区）的弯曲指数（Imin/Imax × 1000）。 ImaxImin_allslices_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在4个不同解剖位置（牙间隙区、前磨牙区、中间磨牙区与后磨牙区）的弯曲指数（Imin/Imax × 1000）。 M1d_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在中间磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 M1d_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在中间磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 M1m_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在前磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 M1m_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在前磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 M2m_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在后磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 M2m_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在后磨牙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 CATA_allslices_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在4个不同解剖位置（牙间隙区、前磨牙区、中间磨牙区与后磨牙区）的相对皮质骨面积（CA/TA × 100）。 CATA_allslices_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在4个不同解剖位置（牙间隙区、前磨牙区、中间磨牙区与后磨牙区）的相对皮质骨面积（CA/TA × 100）。 diastema_left.xlsx：包含24例小鼠左侧下颌骨半侧标本在牙间隙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 diastema_right.xlsx：包含24例小鼠右侧下颌骨半侧标本在牙间隙区的弯曲指数（Imin/Imax × 1000）与相对皮质骨面积（CA/TA × 100）。 ld_description.pdf：本研究几何形态测量学分析中所使用的固定地标点与滑动半地标点的说明文档。 本研究获得法国政府的资助，资助项目为波尔多大学IdEx "Investments for the Future" 项目 / GPR "Human Past" 项目，以及美国国立卫生研究院（NIH）国家关节炎、肌肉骨骼和皮肤疾病研究所的资助，资助编号为P30 AR069620。本文内容仅代表作者观点，不代表美国国立卫生研究院的官方立场。本出版物报道的研究同时获得了美国国家科学基金会（NSF）BCS-1638553项目对MD的资助。密歇根大学牙科学院显微CT核心实验室的部分经费来自NIH/NCRR S10RR026475-01与NIH P30 AR069620。