Research Progress and Forensic Application of Human Vascular Finite Element Modeling and Biomechanics.

The finite element method (FEM) is a mathematical method for obtaining approximate solutions to a wide variety of engineering problems. With the development of computer technology, it is gradually applied to the study of biomechanics of human body. The application of the combination of FEM and biomechanics in exploring the relationship between vascular injury and disease, and pathological mechanisms will be a technological innovation for traditional forensic medicine.

Epidemiological characteristics and distribution of pediatric supracondylar fractures in South China: a retrospective analysis of 760 cases.

To evaluate demographic characteristics and distribution of pediatric supracondylar fractures (SCFs) at a tertiary hospital in South China. A retrospective observational study was conducted on children aged 15 years or younger with a diagnosis of SCFs during the period from January 2016 to December 2018. Patients' medical records and radiographs were retrospectively analyzed for age at the time of injury, sex, site and mechanism of traumatic injury.

Brain-specific loss of Abcg1 disturbs cholesterol metabolism and aggravates pyroptosis and neurological deficits after traumatic brain injury.

Based on accumulating evidence, cholesterol metabolism dysfunction has been suggested to contribute to the pathophysiological process of traumatic brain injury (TBI) and lead to neurological deficits. As a key transporter of cholesterol that efflux from cells, the ATP-binding cassette (ABC) transporter family exerts many beneficial effects on central nervous system (CNS) diseases. However, there is no study regarding the effects and mechanisms of ABCG1 on TBI.

Application of Immunohistochemistry and Special Staining Technique in Forensic Traumatic Pathology Identification.

In forensic traumatic pathology practice, immunohistochemistry and special staining technique play an important role in wound age estimation and complications of traumatic complication identification. They even play an important role in the identification of special cases, such as snakebites and insulin killings. This article reviews the application and value of immunohistochemistry and special staining techniques in forensic traumatic pathology based on the cases of forensic practice reported in literature.

Characteristics of Visual Evoked Potential in Different Parts of Visual Impairment.

Objectives: To study the quantitative and qualitative differences of visual evoked potential (VEP) in monocular visual impairment after different parts of visual pathway injury.

Methods: A total of 91 subjects with monocular visual impairment caused by trauma were selected and divided into intraocular refractive media-injury group (eyeball injury group for short), optic nerve injury group, central nervous system injury and intracranial combined injury group according to the injury cause and anatomical segment. Pattern Reversal visual evoked potential (PR-VEP) P100 peak time and amplitude, Flash visual evoked potential (F-VEP) P2 peak time and amplitude were recorded respectively.

Acupuncture methods for diabetic peripheral neuropathy: A protocol for a Bayesian network meta-analysis.

Background: Many clinical trials and systematic reviews have suggested that acupuncture (include moxibustion) could be effective in the treatment of diabetic peripheral neuropathy (DPN). However, clinical practices vary greatly leads to different choices which are mainly based on personal experience. The aim of this Bayesian network meta-analysis is to compare the efficacy of different acupuncture methods for DPN.

Chronic restraint stress exacerbates neurological deficits and disrupts the remodeling of the neurovascular unit in a mouse intracerebral hemorrhage model.

Growing evidences have shown that patients recovering from stroke experience high and unremitting stress. Chronic restraint stress (CRS) has been found to exacerbate neurological impairments in an experimental focal cortical ischemia model. However, there have been no studies reporting the effect and mechanism of CRS on intracerebral hemorrhage (ICH).

Salubrinal offers neuroprotection through suppressing endoplasmic reticulum stress, autophagy and apoptosis in a mouse traumatic brain injury model.

Traumatic brain injury (TBI) is a complex injury that can cause severe disabilities and even death. TBI can induce secondary injury cascades, including but not limited to endoplasmic reticulum (ER) stress, apoptosis and autophagy. Although the investigators has previously shown that salubrinal, the selective phosphatase inhibitor of p-eIF2α, ameliorated neurologic deficits in murine TBI model, the neuroprotective mechanisms of salubrinal need further research to warrant the preclinical value.

IL-33/ST2L Signaling Provides Neuroprotection Through Inhibiting Autophagy, Endoplasmic Reticulum Stress, and Apoptosis in a Mouse Model of Traumatic Brain Injury.

Interleukin-33 (IL-33) is a member of the interleukin-1 (IL-1) cytokine family and an extracellular ligand for the orphan IL-1 receptor ST2. Accumulated evidence shows that the IL-33/ST2 axis plays a crucial role in the pathogenesis of central nervous system (CNS) diseases and injury, including traumatic brain injury (TBI). However, the roles and molecular mechanisms of the IL-33/ST2 axis after TBI remain poorly understood.

Estimating the age of Lucilia illustris during the intrapuparial period using two approaches: Morphological changes and differential gene expression.

Lucilia illustris (Meigen, 1826) (Diptera: Calliphoridae) is a cosmopolitan species of fly that has forensic and medical significance. However, there is no relevant study regarding the determination of the age of this species during the intrapuparial period. In this study, we investigated the changes in both morphology and differential gene expression during intrapuparial development, with an aim to estimate the age of L.

IL-33 Provides Neuroprotection through Suppressing Apoptotic, Autophagic and NF-κB-Mediated Inflammatory Pathways in a Rat Model of Recurrent Neonatal Seizure.

Interleukin-33 (IL-33) is a novel identified chromatin-associated cytokine of IL-1 family cytokines. It signals through a heterodimer comprised of ST2L and IL-1RAcp, and plays a crucial role in many diseases. However, very little is known about the role and underlying intricate mechanisms of IL-33 in recurrent neonatal seizure (RNS).

Insect succession on remains of human and animals in Shenzhen, China.

Most forensic entomological succession studies have been carried out using pig or rabbit carcasses; however, there have been few studies on the differences between insect succession patterns on human cadavers and on animal carcasses. In order to clarify the differences between decomposition and insect succession patterns of human cadavers and animal carcasses, one 49.5kg human cadaver, two large pig carcasses (45 and 48kg), two small pig carcasses (23 and 25kg) and two rabbit carcasses (both 1.

Dynamin-related protein 1 (Drp1) mediating mitophagy contributes to the pathophysiology of nervous system diseases and brain injury.

As the main source of energy (celluar ATP) in eukaryotic cells, mitochondria are involved in cellular physiology and pathology. The balance of mitochondrial dynamic, fission and fusion regulated by quality control mechanisms, provides a guarantee for maintaining mitochondrial function, even celluar function. Worn out mitochondria would be removed through mitophagy which is regulated by autophagy related proteins and mitochondrial membrane proteins.

Development of the green bottle fly Lucilia illustris at constant temperatures.

Lucilia illustris (Meigen 1826) (Diptera: Calliphoridae) is a cosmopolitan species that commonly colonizes carcasses and occasionally acts as parasites of humans or livestock, making it an insect of significant importance in forensic, medical, and veterinary entomology. However, only a few studies have documented the development of L. illustris.

Glucocorticoid treatment inhibits intracerebral hemorrhage‑induced inflammation by targeting the microRNA‑155/SOCS‑1 signaling pathway.

Intracerebral hemorrhage (ICH) results in inflammation, and glucocorticoids have been proven to be effective inhibitors of ICH‑induced inflammation. However, the precise underlying mechanisms of ICH‑induced inflammation and glucocorticoid function remain largely undefined. Using a mouse ICH model, the present study demonstrated that the short non‑coding RNA molecule microRNA‑155 (miR‑155) is involved in the inflammatory process initiated by ICH in mice.

IL-33 Exerts Neuroprotective Effect in Mice Intracerebral Hemorrhage Model Through Suppressing Inflammation/Apoptotic/Autophagic Pathway.

Interleukin-33 (IL-33) is a recently identified member of the IL-1 family that exerts biologic functions by binding to a heterodimer composed of IL-1 receptor-related protein ST2L and IL-1RAcP. However, the role of IL-33 and whether IL-33 accounts for inflammation, apoptotic, and autophagic neuropathology after intracerebral hemorrhage (ICH) are not clear. Here, we established a mouse ICH model in this study, to determine the role of IL-33 and explore the underlying mechanism.

Mitochondrial division inhibitor 1 (Mdivi-1) offers neuroprotection through diminishing cell death and improving functional outcome in a mouse model of traumatic brain injury.

Mitochondria dysfunction, an enormous potential crisis, has attracted increasing attention. Disturbed regulation of mitochondrial dynamics, the balance of mitochondrial fusion and fission, has been implicated in neurodegenerative diseases, such as Parkinson׳s disease and cerebral ischemia/reperfusion. However the role of mitochondrial dynamics in traumatic brain injury (TBI) has not been illuminated.

[Research Progress of Event-related Potential in Mild Cognitive Impairment].

Mild cognitive impairment caused by craniocerebral trauma is the key points and difficulties in judicial authentication. This article has comparative analysis of each mode of event-related potential (classical Oddball, Eriksen flanker task and so on), which can provide a more objective method for such craniocerebral trauma cases in clinical forensic judicial authentication.

Mismatch negativity, social cognition, and functional outcomes in patients after traumatic brain injury.

Mismatch negativity is generated automatically, and is an early monitoring indicator of neuronal integrity impairment and functional abnormality in patients with brain injury, leading to decline of cognitive function. Antipsychotic medication cannot affect mismatch negativity. The present study aimed to explore the relationships of mismatch negativity with neurocognition, daily life and social functional outcomes in patients after brain injury.

[Expression of CaMK II delta in cerebral cortex following traumatic brain injury].

Objective: To observe the time-course expression of calcium-calmodulin dependent protein kinase II delta (CaMK II delta) in cerebral cortex after traumatic brain injury (TBI).

Methods: The TBI rat model was established. The expression of CaMK II delta in cerebral cortex around injured area was tested by Western blotting and immunohistochemical staining.

MicroRNA‑21 regulation of the progression of viral myocarditis to dilated cardiomyopathy.

MicroRNAs (miRNAs) comprise a broad class of small non‑coding RNAs that control the expression of complementary target messenger RNAs. The dysregulation of miRNAs by several mechanisms has been described in various disease states, including cardiac disease. Although an etiological link between viral myocarditis (VMC) and idiopathic dilated cardiomyopathy (DCM) has long been recognized, the true extent of this association is uncertain.

Lipoxin A4 attenuates brain damage and downregulates the production of pro-inflammatory cytokines and phosphorylated mitogen-activated protein kinases in a mouse model of traumatic brain injury.

The present study was designed to investigate the effects of lipoxin A4 (LXA4) on traumatic brain injury (TBI) and to analyze the possible mechanism. Outcome parameters consist of blood-brain barrier (BBB) breakdown, brain edema and lesion volume. Using western blot and quantitative real-time PCR, we examined the levels of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) and activation of mitogen-activated protein kinases (MAPKs) (including ERK, JNK, p38) following TBI.

Poloxamer 188 attenuates in vitro traumatic brain injury-induced mitochondrial and lysosomal membrane permeabilization damage in cultured primary neurons.

Acute membrane damage due to traumatic brain injury (TBI) is a critical precipitating event. However, the subsequent effects of the mechanical trauma, including mitochondrial and lysosomal membrane permeability (MOMP and LMP) remain elusive. The main objective of the current study was to assess the role of a putative membrane-resealing agent poloxamer 188 (P188) in MOMP and LMP in response to a well-defined mechanical insult.