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Rattanachet P, Wantanajittikul K, Panyarak W, Charoenkwan P, Monum T, Prasitwattanaseree S, Palee P, Mahakkanukrauh P. A web application for sex and stature estimation from radiographic proximal femur for a Thai population. Leg Med (Tokyo) 2023; 64:102280. [PMID: 37307774 DOI: 10.1016/j.legalmed.2023.102280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/29/2023] [Accepted: 06/03/2023] [Indexed: 06/14/2023]
Abstract
In both forensic and archaeological domains, the discovery of incomplete human remains is a frequent occurrence. Nevertheless, the estimation of biological profiles from such remains presents a challenge due to the absence of crucial skeletal elements, such as the skull and pelvis. This study aimed to assess the utility of the proximal femur in the forensic identification process by creating a web application for osteometric analysis of the proximal femur. The aim was to determine the sex and stature of an individual from radiographs of the left anteroposterior femur. To accomplish this, an automated method was developed for acquiring linear measurements from radiographic images of the proximal femur using Python tools. The application of Hough techniques and Canny edge detection was utilized to generate linear femoral dimensions from radiographs. A total of 354 left femora were radiographed and measured by the algorithm. The sex classification model employed in this study was the Naïve Bayes algorithm (accuracy = 91.2 %). Results indicated that Gaussian process regression (GPR) was the most effective method for estimating stature (mean error = 4.68 cm, SD = 3.93 cm). The proposed web application holds the potential to serve as a valuable asset in the realm of forensic investigations in Thailand, particularly in the estimation of biological profiles from fragmentary skeletal remains.
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Affiliation(s)
- Patara Rattanachet
- PhD Candidate in Forensic Osteology and Odontology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kittichai Wantanajittikul
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Wannakamon Panyarak
- Division of Oral and Maxillofacial Radiology, Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Phasit Charoenkwan
- College of Arts, Media and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | - Patison Palee
- College of Arts, Media and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Excellence Center in Osteology Research and Training Center (ORTC), Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
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Vanichanukulyakit J, Khacha-ananda S, Monum T, Mahawong P, Moophayak K, Penkhrue W, Khumpook T, Thongsahuan S. The Analysis of Genetic Polymorphism on Mitochondrial Hypervariable Region III in Thai Population. Genes (Basel) 2023; 14:genes14030682. [PMID: 36980954 PMCID: PMC10048634 DOI: 10.3390/genes14030682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Mitochondrial DNA (mtDNA) analysis is a genetic marker for human identification, especially matrilineal inheritance. Hypervariable regions (HVR) I and II of mtDNA have been currently performed for human identification worldwide. Further examination of HVRIII has been conducted with the aim of enhancing the power of discrimination. The aim of this research is to provide informative data on the polymorphisms of HVRIII in the Thai population in order to establish a national database for human identification. Thai people who were unrelated through the maternal lineage were recruited for blood collections. The mtDNA was extracted by Chelex extraction, amplified by polymerase chain reaction, and analyzed using Sequencing Analysis Software. The most common mutation in HVRIII was base substitution, followed by deletion and insertion. We discovered 40 unique haplotypes, with haplotype 489C being the most frequent. The haplotype diversity, power of discrimination, and random match probability were 0.8014, 0.7987, and 0.2013, respectively. Five-CA repeats were the most frequently observed in nucleotide positions 514–523. Our database can be employed as supplementary markers in addition to nuclear deoxyribonucleic acid (DNA) markers in forensic investigations. Moreover, the data could potentially enhance genetic identification and anthropological genetics research in Thailand.
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Affiliation(s)
- Jirat Vanichanukulyakit
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (J.V.); (T.M.); (P.M.)
| | - Supakit Khacha-ananda
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (J.V.); (T.M.); (P.M.)
- Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, 239, Huay Kaew Road, Muang, Chiang Mai 50200, Thailand
- Correspondence:
| | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (J.V.); (T.M.); (P.M.)
| | - Phatcharin Mahawong
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (J.V.); (T.M.); (P.M.)
| | | | - Watsana Penkhrue
- School of Preclinic, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand;
| | - Taddaow Khumpook
- Faculty of Science at Sriracha, Kasetsart University, Sriracha Campus, Chonburi 20230, Thailand;
| | - Sorawat Thongsahuan
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla 90110, Thailand;
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Keereewan W, Monum T, Prasitwattanaseree S, Mahakkanukrauh P. Stature estimation using the sacrum in a Thai population. Anat Cell Biol 2023:acb.22.140. [PMID: 36702453 DOI: 10.5115/acb.22.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/28/2023] Open
Abstract
Stature is an essential component of biological profile analysis since it determines an individual's physical identity. Long bone dimensions are generally used to estimate the stature of skeletal remains; however, non-long bones such as the sternum, cranium, and sacrum may be necessary for some forensic situations. This study aimed to generate a regression equation for stature estimation of the skeletal remains in the Thai population. Ten measurements of the sacrum were measured from 200 dry sacra. The results revealed that the maximum anterior breadth (MAB) provided the most accurate stature prediction model among males (correlation coefficient [r]=0.53), standard error of estimation (SEE=5.94 cm), and females (r=0.48, SEE=6.34 cm). For the multiple regression model, the best multiple regression models were stature equals 41.2+0.374 (right auricular surface height [RASH])+1.072 (anterior-posterior outer diameter of S1 vertebra corpus [APOD])+0.256 (dorsal height [DH])+0.417 (transverse inner diameter of S1 vertebra corpus [TranID])+0.2 (MAB) with a SEE of 6.42 cm for combined sex. For males, stature equals 63.639+0.478 (MAB)+0.299 (DH)+0.508 (APOD) with a SEE of 5.35, and stature equals 75.181+0.362 (MAB)+0.441 (RASH)+0.132 (maximum anterior height [MAH]) with a SEE of 5.88 cm for females. This study suggests that regression equations derived from the sacrum can be used to estimate the stature of the Thai population, especially when a long bone is unavailable.
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Affiliation(s)
- Waratchaya Keereewan
- Master of Science Program in Forensic Science, Graduate School, Chiang Mai University, Chiang Mai, Thailand
| | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, Thailand
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Chaichana J, Khamenkhetkarn M, Sastraruji T, Monum T, O’Brien TE, Amornlertwatana Y, Jaikang C. Categorization of Cytochrome P4502D6 Activity Score by Urinary Amphetamine/Methamphetamine Ratios. Metabolites 2022; 12:metabo12121174. [PMID: 36557212 PMCID: PMC9788588 DOI: 10.3390/metabo12121174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/14/2022] [Accepted: 11/23/2022] [Indexed: 11/26/2022] Open
Abstract
Methamphetamine (MA) level in urine has been used for judgment in MA consumption. Metabolism and intoxication of MA are correlated with the activity of cytochrome P450 2D6 (CYP2D6). The activity score (AS) is a potential tool for predicting exposure and personalized dose of drugs metabolized by CYP2D6. Prediction of the CYP2D6 activity score might be described as MA intoxication. The objective of this study was to categorize the CYP2D6 activity score using the urinary amphetamine (AM)/MA ratio. Urine samples (n = 23,258) were collected. The levels of MA and AM were determined by a gas chromatography-nitrogen-phosphorus detector. The log AS was calculated by an AM/MA ratio and classified into four groups following the percentile position: lower than the 2.5th, the 2.5th-the 50th, the 50th-97.5th, and greater than the 97.5th percentile, respectively. The AS value for males presented was less than 0.024, 0.024-0.141, 0.141-0.836, and greater than 0.836. Meanwhile, the AS values were revealed to be lower than 0.023, 0.023-0.148, 0.148-0.850, and higher than 0.850 for females. The AS value of CYP2D6 can be applied to describe the toxicity of MA in forensic crime scenes and relapse behavior.
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Affiliation(s)
- Jatuporn Chaichana
- Toxicology Section, Regional Medical Science Center 1 Chiang Mai 191 Tumbon Don Keaw, Ampher Mae Rim, Chiang Mai 50180, Thailand
| | - Manee Khamenkhetkarn
- Toxicology Section, Regional Medical Science Center 1 Chiang Mai 191 Tumbon Don Keaw, Ampher Mae Rim, Chiang Mai 50180, Thailand
- Correspondence: (M.K.); (C.J.); Tel.:+66-53112188 (M.K.); +66-53935432 (C.J.)
| | | | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Timothy E. O’Brien
- Department of Mathematics and Statistics, Loyola University Chicago, 1032 W.Sheridan Road, Chicago, IL 60660-1537, USA
| | - Yutti Amornlertwatana
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Churdsak Jaikang
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: (M.K.); (C.J.); Tel.:+66-53112188 (M.K.); +66-53935432 (C.J.)
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Jeamamornrat V, Monum T, Keereewan W, Mahakkanukrauh P. Stature estimation using the sternum in a Thai population. Anat Cell Biol 2022; 55:170-178. [PMID: 35773219 PMCID: PMC9256492 DOI: 10.5115/acb.22.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/09/2022] [Accepted: 04/12/2022] [Indexed: 11/29/2022] Open
Abstract
Stature estimation is an important process of biological profile analysis for the identification of skeletal remains. In forensic practice, non-long bones might be needed for estimating stature, in case long bones were not recovered or well preserved. This study developed the stature estimation model from dry sterna in a Thai population. The combined length of manubrium and mesosternum (CMM) was the best single stature estimation indicator for males and combined sex samples, whereas the sternal area (SA) was the best stature estimation indicator for females in our study. The best multiple regression analysis models of our study were stature equal 122.685+0.182 (CMM)+0.592 (intercostal length between the third and fourth ribs [ICL34]) with a standard error of estimation (SEE) of 6.134 cm for males, stature equal 130.676+0.005 (SA) with SEE of 5.370 cm for females, and stature equal 79.412+0.342 (CMM)+0.506 (corpus sterni width at first sternebra [CSWS1])+0.794 (ICL34) with SEE of 6.222 cm for unknown sex samples. The results indicated that a sternum can be used for estimating the stature of skeletal remains in a Thai population. However, these models might not be suitable for other populations, especially, in case the suspected stature is over the stature range in our study.
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Affiliation(s)
- Verapat Jeamamornrat
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Waratchaya Keereewan
- Master of Science Program in Forensic Science, Graduate School, Chiang Mai University, Chiang Mai, Thailand
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Osteology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Monum T, Jongmuenwai W, Thunyacharoen S, Sinthubua A, Prasitwattanaseree S, Mahakkanukrauh P. Sex Estimation Using Ulna in a Thai Population. INT J MORPHOL 2021. [DOI: 10.4067/s0717-95022021000601535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jongmuenwai W, Boonpim M, Monum T, Sintubua A, Prasitwattanaseree S, Mahakkanukrauh P. Sex estimation using radius in a Thai population. Anat Cell Biol 2021; 54:321-331. [PMID: 34290151 PMCID: PMC8493020 DOI: 10.5115/acb.20.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/18/2021] [Accepted: 06/04/2021] [Indexed: 11/27/2022] Open
Abstract
The estimation of sex is an essential component of forensic osteological analyses, and the potential of an incomplete radius for sex determination of human remains is investigated. The present study was conducted on 200 left-right pairs of radial bone from a northern Thai population (100 males and 100 females). The most dimorphic single parameter was maximum head diameter (MDH) with accuracies 92.0% for the right side and 90.5% for the left side. At the distal part of radius, the distal end width of the radius (RDEW) was the best sex indicator, in which the sex classification accuracies were 91.5% and 89.0%, for the right and left sides, respectively. Stepwise discriminant function analysis was performed for all measurements and specified separately to the proximal and distal radius. The circumference of the radial neck, head-tuberosity length, MDH, and RDEW were selected for the stepwise procedure as these parameters produced the best correct classification results for both sides. The use of proximal radius for sex estimation was examined, with accuracies of 95.0% and 93.0% for the right and left sides, respectively. The sex classification functions for distal radius provided the accuracies of 92.5% and 89.5%, for the right and left sides, respectively. In summary, the fragments of radius indicated a high ability to estimate sex in the Northern Thai population.
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Affiliation(s)
- Wiraporn Jongmuenwai
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Matee Boonpim
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Apichat Sintubua
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Excellence Center in Osteology Research and Training Center (ORTC), Chiang Mai University, Chiang Mai, Thailand
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Monum T, Makino Y, Prasitwattanaseree S, Yajima D, Chiba F, Torimitsu S, Hoshioka Y, Yoshida M, Urabe S, Oya Y, Iwase H. Age estimation from ossification of sternum and true ribs using 3D post-mortem CT images in a Japanese population. Leg Med (Tokyo) 2019; 43:101663. [PMID: 31954957 DOI: 10.1016/j.legalmed.2019.101663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/19/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Abstract
Age estimation of cadavers from post-mortem "chest plate" using conventional radiography, which involves radiographic assessment of ossification around the sternum and rib ends, has been evaluated without fruitful results. This study examined the value of images of the chest plate obtained by three-dimensional post-mortem CT for estimation of age at time of death in a Japanese population. Five chest plate ossification scores were evaluated in 320 subjects, including ossification of the first costal cartilage (OF), ossification of the second to seventh costal cartilages at the rib (OR) and sternal (OS) ends, fusion of the manubriosternal joint (FM), and fusion of the xiphisternal joint (FX). OS was found to have the highest correlation with age while FM had no significant correlation. The best composite score for age estimation was the summative score for both sides of the OS and the right side of the OF and FX, for which the coefficient of determination (R2) and the standard error of estimation (SEE) were 0.608 and 12.44 years, respectively, for men and 0.590 and 14.65 years for women. The accuracy of the model was tested in a further 26 male and 24 female subjects, and the accuracy rate within the first SEE was 57.69% and 70.83%, respectively. This rapid and non-invasive method of age estimation in the chest plate area is superior to conventional methods and could be useful for estimation of age at time of death in the Japanese population.
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Affiliation(s)
- Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, 110, Intravaroros Rd, Sriphoom, Muang, Chiang 50200, Thailand; Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Yohsuke Makino
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Sukon Prasitwattanaseree
- Department of Statistics, Faculty of Science, Chiang Mai University, 110, Intravaroros Rd, Sriphoom, Muang, Chiang 50200, Thailand
| | - Daisuke Yajima
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Fumiko Chiba
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Suguru Torimitsu
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Yumi Hoshioka
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Maiko Yoshida
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Shumari Urabe
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Yukiko Oya
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Hirotaro Iwase
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Monum T, Prasitwattanseree S, Das S, Siriphimolwat P, Mahakkanukrauh P. Sex estimation by femur in modern Thai population. Clin Ter 2017; 168:e203-e207. [PMID: 28612898 DOI: 10.7417/t.2017.2007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Sex estimation is an important step of postmortem investigation and the femur is a useful bone for sex estimation by using metric analysis method. Even though there have been a reported sex estimation method by using femur in Thais, the temporal change related to time and anthropological data need to be renewed. Thus the aim of this study is to re-evaluate sex estimation by femur in Thais. 97 adult male and 103 female femora were random chosen from Forensic osteology research center and 6 measurements were applied tend to. To compare with previous Thai data, mid shaft diameter to increase but femoral head and epicondylar breadth to stabilize and when tested previous discriminant function by vertical head diameter and epicondalar breadth, the accuracy of prediction was lower than previous report. From the new data, epicondalar breadth is the best variable for distinguishing male and female at 88.7 percent of accuracy, following by transverse and vertical head diameter at 86.7 percent and femoral neck diameter at 81.7 percent of accuracy. Multivariate discriminant analysis indicated transverse head diameter and epicondylar breadth performed highest rate of accuracy at 89.7 percent. The percent of accuracy of femur was close to previous reported sex estimation by talus and calcaneus in Thai population. Thus, for especially in case of lower limb remain, which absence of pelvis.
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Affiliation(s)
- T Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, 50200, Thailand Master of science program in forensic Science, Graduate Unit, Chiang Mai University, 50200, Thailand
| | - S Prasitwattanseree
- Excellence in Osteology Research and Training Center (ORTC), Chiang Mai University, Chiang Mai, 50200, Thailand - Department of Statistics, Faculty of Science, Chiang Mai University, 50200, Thailand
| | - S Das
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, 56000, Malaysia
| | | | - P Mahakkanukrauh
- Excellence in Osteology Research and Training Center (ORTC), Chiang Mai University, Chiang Mai, 50200, Thailand - Department of Statistics, Faculty of Science, Chiang Mai University, 50200, Thailand - Department of Anatomy, Faculty of Medicine, Chiang Mai University, 50200, Thailand
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Monum T, Jaikang C, Sinthubua A, Prasitwattanaseree S, Mahakkanukrauh P. Age estimation using aspartic amino acid racemization from a femur. AUST J FORENSIC SCI 2017. [DOI: 10.1080/00450618.2017.1391330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Tawachai Monum
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Churdsak Jaikang
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Apichat Sinthubua
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, Thailand
| | - Sukon Prasitwattanaseree
- Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, Thailand
- Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, Thailand
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Sribanditmongkol P, Monum T, Wannasan A, Tomberlin JK, Sukontason K, Sukontason KL. Blow fly maggots (Diptera: Calliphoridae)from a human corpse in a vehicle. Southeast Asian J Trop Med Public Health 2014; 45:1011-1014. [PMID: 25417501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Correct species identification and development data of insects associated with a cadaver can help estimate the time of colonization which could be used to infer a minimal post-mortem interval (minPMI) for forensic investigations. Human remains are found in a variety of locations ranging from open fields to inside automobiles. We report the investigation of blow fly larvae collected from a decomposing body located in the trunk of a car. There were two blow fly (Diptera: Calliphoridae) species: Achoetandrus rufifacies (Macquart) and Chrysomya megacephala (Fabricius). Blow flies can enter the vehicle and colonize human remains. Based on age estimations of third stage larvae of A. rufifacies, the minPMI was estimated to be 4-5 days, which was within the range of 3-5 days estimated by other forensically relevant information.
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