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Détails du magazine
Format
Magazine
eISSN
1875-855X
Première publication
01 Jun 2007
Période de publication
6 fois par an
Langues
Anglais

Chercher

Volume 12 (2018): Edition 3 (June 2018)

Détails du magazine
Format
Magazine
eISSN
1875-855X
Première publication
01 Jun 2007
Période de publication
6 fois par an
Langues
Anglais

Chercher

6 Articles

Editorial

access type Accès libre

21st Century era of anatomy

Publié en ligne: 20 Sep 2019
Pages: 101 - 101

Résumé

Original article

access type Accès libre

Sex determination in Northern Thai from crania by using computer-aided design software and conventional caliper methods

Publié en ligne: 20 Sep 2019
Pages: 103 - 110

Résumé

AbstractBackground

Identification of sex from skeletal remains is an essential step in forensic anthropology. The skull is the second choice, after the pelvis, to estimate sex by osteometric methods.

Objective

To evaluate the process of identification of sex in Northern Thai from crania by using computer-aided design (AutoCAD) software and conventional caliper methods.

Methods

Dry skulls of 86 men and 74 women were examined. AutoCAD software and digital calipers were used to measure dimensions. Eleven of the 15 parameters were created for this study.

Results

Men are significantly larger than women in all parameters, except in the nasospinale–prosthion measurement. There were no significant differences in the intraobserver error test and between the AutoCAD and digital caliper measurements. The logistic regression analysis yielded a sex classification accuracy rate of 92.9% in men, 93.4% in women, and 93.1% of overall accuracy for AutoCAD software. When using digital calipers, there was an accuracy rate of 89.3% in men, 94.7% in women, and 91.9% for overall accuracy.

Conclusions

AutoCAD software is a reliable method to predict the sex and provide high accuracy in sex determination from crania.

Mots clés

  • computer-aided design
  • skull
  • Northern Thai
  • sex determination by skeleton

Brief communication (original)

access type Accès libre

Evaluation of SHP1-P2 methylation as a biomarker of lymph node metastasis in patients with squamous cell carcinoma of the head and neck

Publié en ligne: 20 Sep 2019
Pages: 111 - 116

Résumé

AbstractBackground

Hypermethylation of Src homology region 2 domain-containing protein-tyrosine phosphatase 1 promoter 2 (SHP1-P2) has been proven as an epithelial-specific marker. This marker has been used for the detection of lymph node metastasis in patients with lung cancer or colon cancer.

Objectives

To investigate SHP1-P2 methylation in patients with squamous cell carcinoma of the head and neck (HNSCC) and determine its potential for micrometastasis detection in the lymph nodes of patients with HNSCC.

Methods

SHP1-P2 methylation levels were analyzed by combined methylation-specific primer TaqMan real-time PCR in 5 sample groups: normal tonsils (n = 10), microdissected squamous cell carcinoma epithelia (n = 9), nonmetastatic head and neck cancer lymph nodes (LN N0, n = 15), metastatic HNSCC histologically negative for tumor cells (LN–, n = 18), and matched cases histologically positive for tumor cells (LN+, n = 18).

Results

SHP1-P2 methylation of 10.27 ± 4.05% was found in normal tonsils as a lymphoid tissue baseline, whereas it was 61.31 ± 17.00% in microdissected cancer cell controls. In the 3 lymph node groups, the SHP1-P2 methylation levels were 9.99 ± 6.61% for LN N0, 14.49 ± 10.03% for LN- Nx, and 41.01 ± 24.51% for LN+ Nx. The methylation levels for LN- Nx and LN+ Nx were significantly different (P= 0.0002). Receiver operating characteristic curve analysis of SHP1-P2 methylation demonstrated an area under the curve of 0.637 in distinguishing LN N0 from LN– Nx.

Conclusions

SHP1-P2 methylation was high in HNSCC, and low in lymphoid tissues. This methylation difference is concordant with lymph node metastasis.

Mots clés

  • DNA methylation
  • lymph nodes
  • neoplasm micrometastasis
  • promoter regions, genetic
  • squamous cell carcinoma of head and neck
  • homology region 2 domain-containing protein-tyrosine phosphatase 1
access type Accès libre

Anatomic variations of coronary arteries: origins, branching patterns, and abnormalities

Publié en ligne: 20 Sep 2019
Pages: 117 - 123

Résumé

AbstractBackground

Anatomic variations in orifices, courses, branching patterns, and abnormalities of coronary arteries could affect blood supply, hemodynamic characteristics, and clinical symptoms, and could be a risk of atherosclerosis.

Objectives

To investigate the location and number of both coronary orifices in the aortic cusps, branching patterns of left main trunk, dominant pattern of posterior interventricular artery (PIA), prevalence of right posterior diagonal artery (RPDA), myocardial bridge, and other abnormalities.

Methods

We dissected 95 heart specimens from cadavers of Thai donors without the history of surgery, and the dominant patterns, location and number of orifices in the aortic cusps, branching patterns, origin and number of conal arteries, and occurrence of RPDA were determined.

Results

Dual aortic origin of the coronary orifice was the most common condition. Anomalous 2 orifices in the left aortic cusp were found in one specimen in which the right coronary artery (RCA) arose from aortic cusp and had an interarterial course. Right dominance and trifurcated form of left main trunk were found more frequently. Most frequently 2 conal arteries were found. RPDA was found in 45% and mostly originated from RCA. The prevalence of myocardial bridge was 62% and located mostly on the anterior interventricular artery (AIA).

Conclusions

The prevalence of right dominance, RPDA, the atypical origin of RCA from the left sinus, and the prevalence of myocardial bridges was more frequent than reported by others, whereas the dual aortic origin from both cusps and the prevalence of bifurcated left main trunk was less frequent.

Mots clés

  • anatomy
  • arteries
  • cardiovascular diseases
  • coronary vessels
  • coronary vessel anomalies
  • myocardial bridging
access type Accès libre

Unusual accessory peroneal muscles, peroneus quartus, peroneus digiti quinti, and their association with peroneus brevis tendon tear

Publié en ligne: 20 Sep 2019
Pages: 125 - 130

Résumé

AbstractBackground

Anatomic variation and supernumerary contents in the superior peroneal tunnel, and the prominence of the retrotrochlear eminence and peroneal tubercle are related to peroneal tendon disorders.

Objectives

To investigate the prevalence, origin, and insertion of accessory peroneal muscles, the prominence of the retrotrochlear eminence and peroneal tubercle, and their association with peroneal tendon tears.

Methods

We examined 109 formalin-embalmed legs of cadavers from Thai donors. Accessory peroneal muscles and peroneal tendon tears were noted. Associations with peroneal tendon tears were evaluated using a χ2 test.

Results

We found 48 accessory peroneal muscles comprising 13 peroneus quartus (PQ), 33 peroneus digiti quinti (PDQ), and 2 unusual muscles. All PDQ originated from the PB tendon and inserted on various parts of the 5th toe. The PQ originated mostly from the PB muscle belly and less from the tendinous part with various insertions on the retrotrochlear eminence, peroneal tubercle, cuboid, and dorsolateral surface of the 5th metatarsal base. Two unusual accessory muscles were identified, 1 coexisting with the PQ. A PB tendon tear was found in 13% of specimens. We found no association between the peroneal tendon tears and the accessory peroneal muscles, or prominence of the retrotrochlear eminence or peroneal tubercle.

Conclusions

The prevalence of PQ, PDQ, and unusual accessory peroneal muscles was concordant with previous findings. We noted a new type of unusual accessory peroneal muscle coexisting with the PQ. No association was found between peroneal tendon tears and the PQ, PDQ, or prominence of the retrotrochlear eminence or peroneal tubercle.

Mots clés

  • foot
  • leg injuries
  • metatarsal bone
  • muscle
  • peroneal
  • skeletal
  • tendon injuries
  • trochlear
access type Accès libre

Association of SLC1A2 and SLC17A7 polymorphisms with major depressive disorder in a Thai population

Publié en ligne: 20 Sep 2019
Pages: 131 - 138

Résumé

AbstractBackground

Major depressive disorder (MDD) is a common psychiatric disorder with high prevalence and high risk of suicide. Genetic variation of glutamate transporters may associate with MDD and suicide attempt.

Objectives

To evaluate polymorphisms of excitatory amino acid transporter 2 gene (SLC1A2; rs752949, rs1885343, rs4755404, and rs4354668) and vesicular glutamate transporter 1 gene (SLC17A7; rs1043558, rs2946848, and rs11669017) in patients with MDD with and without suicide attempt, and determine the association of these polymorphisms with age of onset and severity of MDD.

Methods

DNA was extracted from blood taken from patients with MDD (n = 100; including nonsuicidal [n = 50] and suicidal [n = 50] subgroups) and controls (n = 100). Genotyping was conducted using TaqMan single-nucleotide polymorphism (SNP) genotyping.

Results

We found a significant difference in SLC17A7 rs2946848 genotype distribution between patients in the MDD and control groups (P = 0.016). Moreover, significant differences in SLC1A2 rs752949 (P = 0.022) and SLC17A7 rs2946848 (P = 0.026) genotype distributions were observed between patients in the nonsuicidal MDD and suicidal MDD groups. SLC1A2 rs1885343 A allele carriers showed significantly lower age of onset than GG genotype (P = 0.049). Furthermore, the severity of MDD indicated by the Hamilton Depression Rating Scale (HDRS) score of G allele carriers of SLC1A2 rs4755404 was significantly greater than the CC genotype (P = 0.013).

Conclusions

Polymorphisms of SLC1A2 and SLC17A7 may contribute to the risk of MDD and/or suicide attempt. An association of an SLC1A2 polymorphism with the severity of MDD was apparent.

Mots clés

  • excitatory amino acid transporter 2, gene
  • major depressive disorder
  • single-nucleotide polymorphisms
  • suicide, attempted
  • vesicular glutamate transporter 1
6 Articles

Editorial

access type Accès libre

21st Century era of anatomy

Publié en ligne: 20 Sep 2019
Pages: 101 - 101

Résumé

Original article

access type Accès libre

Sex determination in Northern Thai from crania by using computer-aided design software and conventional caliper methods

Publié en ligne: 20 Sep 2019
Pages: 103 - 110

Résumé

AbstractBackground

Identification of sex from skeletal remains is an essential step in forensic anthropology. The skull is the second choice, after the pelvis, to estimate sex by osteometric methods.

Objective

To evaluate the process of identification of sex in Northern Thai from crania by using computer-aided design (AutoCAD) software and conventional caliper methods.

Methods

Dry skulls of 86 men and 74 women were examined. AutoCAD software and digital calipers were used to measure dimensions. Eleven of the 15 parameters were created for this study.

Results

Men are significantly larger than women in all parameters, except in the nasospinale–prosthion measurement. There were no significant differences in the intraobserver error test and between the AutoCAD and digital caliper measurements. The logistic regression analysis yielded a sex classification accuracy rate of 92.9% in men, 93.4% in women, and 93.1% of overall accuracy for AutoCAD software. When using digital calipers, there was an accuracy rate of 89.3% in men, 94.7% in women, and 91.9% for overall accuracy.

Conclusions

AutoCAD software is a reliable method to predict the sex and provide high accuracy in sex determination from crania.

Mots clés

  • computer-aided design
  • skull
  • Northern Thai
  • sex determination by skeleton

Brief communication (original)

access type Accès libre

Evaluation of SHP1-P2 methylation as a biomarker of lymph node metastasis in patients with squamous cell carcinoma of the head and neck

Publié en ligne: 20 Sep 2019
Pages: 111 - 116

Résumé

AbstractBackground

Hypermethylation of Src homology region 2 domain-containing protein-tyrosine phosphatase 1 promoter 2 (SHP1-P2) has been proven as an epithelial-specific marker. This marker has been used for the detection of lymph node metastasis in patients with lung cancer or colon cancer.

Objectives

To investigate SHP1-P2 methylation in patients with squamous cell carcinoma of the head and neck (HNSCC) and determine its potential for micrometastasis detection in the lymph nodes of patients with HNSCC.

Methods

SHP1-P2 methylation levels were analyzed by combined methylation-specific primer TaqMan real-time PCR in 5 sample groups: normal tonsils (n = 10), microdissected squamous cell carcinoma epithelia (n = 9), nonmetastatic head and neck cancer lymph nodes (LN N0, n = 15), metastatic HNSCC histologically negative for tumor cells (LN–, n = 18), and matched cases histologically positive for tumor cells (LN+, n = 18).

Results

SHP1-P2 methylation of 10.27 ± 4.05% was found in normal tonsils as a lymphoid tissue baseline, whereas it was 61.31 ± 17.00% in microdissected cancer cell controls. In the 3 lymph node groups, the SHP1-P2 methylation levels were 9.99 ± 6.61% for LN N0, 14.49 ± 10.03% for LN- Nx, and 41.01 ± 24.51% for LN+ Nx. The methylation levels for LN- Nx and LN+ Nx were significantly different (P= 0.0002). Receiver operating characteristic curve analysis of SHP1-P2 methylation demonstrated an area under the curve of 0.637 in distinguishing LN N0 from LN– Nx.

Conclusions

SHP1-P2 methylation was high in HNSCC, and low in lymphoid tissues. This methylation difference is concordant with lymph node metastasis.

Mots clés

  • DNA methylation
  • lymph nodes
  • neoplasm micrometastasis
  • promoter regions, genetic
  • squamous cell carcinoma of head and neck
  • homology region 2 domain-containing protein-tyrosine phosphatase 1
access type Accès libre

Anatomic variations of coronary arteries: origins, branching patterns, and abnormalities

Publié en ligne: 20 Sep 2019
Pages: 117 - 123

Résumé

AbstractBackground

Anatomic variations in orifices, courses, branching patterns, and abnormalities of coronary arteries could affect blood supply, hemodynamic characteristics, and clinical symptoms, and could be a risk of atherosclerosis.

Objectives

To investigate the location and number of both coronary orifices in the aortic cusps, branching patterns of left main trunk, dominant pattern of posterior interventricular artery (PIA), prevalence of right posterior diagonal artery (RPDA), myocardial bridge, and other abnormalities.

Methods

We dissected 95 heart specimens from cadavers of Thai donors without the history of surgery, and the dominant patterns, location and number of orifices in the aortic cusps, branching patterns, origin and number of conal arteries, and occurrence of RPDA were determined.

Results

Dual aortic origin of the coronary orifice was the most common condition. Anomalous 2 orifices in the left aortic cusp were found in one specimen in which the right coronary artery (RCA) arose from aortic cusp and had an interarterial course. Right dominance and trifurcated form of left main trunk were found more frequently. Most frequently 2 conal arteries were found. RPDA was found in 45% and mostly originated from RCA. The prevalence of myocardial bridge was 62% and located mostly on the anterior interventricular artery (AIA).

Conclusions

The prevalence of right dominance, RPDA, the atypical origin of RCA from the left sinus, and the prevalence of myocardial bridges was more frequent than reported by others, whereas the dual aortic origin from both cusps and the prevalence of bifurcated left main trunk was less frequent.

Mots clés

  • anatomy
  • arteries
  • cardiovascular diseases
  • coronary vessels
  • coronary vessel anomalies
  • myocardial bridging
access type Accès libre

Unusual accessory peroneal muscles, peroneus quartus, peroneus digiti quinti, and their association with peroneus brevis tendon tear

Publié en ligne: 20 Sep 2019
Pages: 125 - 130

Résumé

AbstractBackground

Anatomic variation and supernumerary contents in the superior peroneal tunnel, and the prominence of the retrotrochlear eminence and peroneal tubercle are related to peroneal tendon disorders.

Objectives

To investigate the prevalence, origin, and insertion of accessory peroneal muscles, the prominence of the retrotrochlear eminence and peroneal tubercle, and their association with peroneal tendon tears.

Methods

We examined 109 formalin-embalmed legs of cadavers from Thai donors. Accessory peroneal muscles and peroneal tendon tears were noted. Associations with peroneal tendon tears were evaluated using a χ2 test.

Results

We found 48 accessory peroneal muscles comprising 13 peroneus quartus (PQ), 33 peroneus digiti quinti (PDQ), and 2 unusual muscles. All PDQ originated from the PB tendon and inserted on various parts of the 5th toe. The PQ originated mostly from the PB muscle belly and less from the tendinous part with various insertions on the retrotrochlear eminence, peroneal tubercle, cuboid, and dorsolateral surface of the 5th metatarsal base. Two unusual accessory muscles were identified, 1 coexisting with the PQ. A PB tendon tear was found in 13% of specimens. We found no association between the peroneal tendon tears and the accessory peroneal muscles, or prominence of the retrotrochlear eminence or peroneal tubercle.

Conclusions

The prevalence of PQ, PDQ, and unusual accessory peroneal muscles was concordant with previous findings. We noted a new type of unusual accessory peroneal muscle coexisting with the PQ. No association was found between peroneal tendon tears and the PQ, PDQ, or prominence of the retrotrochlear eminence or peroneal tubercle.

Mots clés

  • foot
  • leg injuries
  • metatarsal bone
  • muscle
  • peroneal
  • skeletal
  • tendon injuries
  • trochlear
access type Accès libre

Association of SLC1A2 and SLC17A7 polymorphisms with major depressive disorder in a Thai population

Publié en ligne: 20 Sep 2019
Pages: 131 - 138

Résumé

AbstractBackground

Major depressive disorder (MDD) is a common psychiatric disorder with high prevalence and high risk of suicide. Genetic variation of glutamate transporters may associate with MDD and suicide attempt.

Objectives

To evaluate polymorphisms of excitatory amino acid transporter 2 gene (SLC1A2; rs752949, rs1885343, rs4755404, and rs4354668) and vesicular glutamate transporter 1 gene (SLC17A7; rs1043558, rs2946848, and rs11669017) in patients with MDD with and without suicide attempt, and determine the association of these polymorphisms with age of onset and severity of MDD.

Methods

DNA was extracted from blood taken from patients with MDD (n = 100; including nonsuicidal [n = 50] and suicidal [n = 50] subgroups) and controls (n = 100). Genotyping was conducted using TaqMan single-nucleotide polymorphism (SNP) genotyping.

Results

We found a significant difference in SLC17A7 rs2946848 genotype distribution between patients in the MDD and control groups (P = 0.016). Moreover, significant differences in SLC1A2 rs752949 (P = 0.022) and SLC17A7 rs2946848 (P = 0.026) genotype distributions were observed between patients in the nonsuicidal MDD and suicidal MDD groups. SLC1A2 rs1885343 A allele carriers showed significantly lower age of onset than GG genotype (P = 0.049). Furthermore, the severity of MDD indicated by the Hamilton Depression Rating Scale (HDRS) score of G allele carriers of SLC1A2 rs4755404 was significantly greater than the CC genotype (P = 0.013).

Conclusions

Polymorphisms of SLC1A2 and SLC17A7 may contribute to the risk of MDD and/or suicide attempt. An association of an SLC1A2 polymorphism with the severity of MDD was apparent.

Mots clés

  • excitatory amino acid transporter 2, gene
  • major depressive disorder
  • single-nucleotide polymorphisms
  • suicide, attempted
  • vesicular glutamate transporter 1

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