Neuroinflammation is known to be a contributing factor for several neurological disorders as well as cognitive dysfunction. Different signalling pathways, and a variety of supporting cells of CNS are suggested to be involved in the progression of neurodegeneration. Among the factors contributing to neuroinflammation, peripheral inflammation takes a lead role according to recent research, since persistent peripheral inflammation is believed to disrupt the blood–brain barrier (BBB). This, in turn, allows the peripheral immune cells to infiltrate the central nervous system (CNS), triggering a chronic inflammatory response. Microglia and astrocytes, the key glial cells in the CNS, become overactivated, resulting in the unwarranted generation of the proinflammatory cytokines, such as TNF- α, IL- 1β, and the IL-6. While acute neuroinflammation is initially beneficial in repairing neuronal damage, prolonged activation contributes to the oxidative stress, mitochondrial dysfunction, protein aggregation and neural degeneration. The dysregulation of the neuroinflammatory process is likened to the deposition of the amyloid precursor proteins (APP), tau pathology and the synaptic dysfunction, ultimately impairing cognitive function. Key brain regions like the hippocampus, prefrontal cortex and amygdala are particularly vulnerable to neuroinflammatory damage. Chronic inflammation in these areas disrupts synaptic plasticity, neurogenesis and neurotransmitter stability, leading to cognitive decline and several neurological disorders. Understanding the regional specificity of neuroinflammatory responses provides valuable insights into mechanisms underlining cognitive impairment. Multifaceted treatment approaches like improvement in the delivery of drugs across the BBB, disease-specific cytokine centred treatment and improving the gut microbial environment with lifestyle changes would help in inhibiting the progression of neuroinflammation and associated cognitive dysfunction in various neurodegenerative diseases. This review is an attempt to differentiate the impact of neuroinflammation on major regions of the brain associated with cognition, so that future studies targeting neurotherapeutic strategies might get benefited, by understanding the mechanism of the inflammatory pathway that affects the brain and a spectrum of cognition. Here, we also discuss the influence.

The omohyoid muscle is a long, thin muscle consisting of superior and inferior bellies and an intermediate tendon, which runs obliquely in the lateral cervical region. The omohyoid is important in neck dissections because it is the surgical landmark for level III and IV lymph node metastases. In the present study, the anterior and posterior triangle of the neck was dissected in 35 male cadavers and observed for variations in the omohyoid bilaterally. Observations were focused on variations in number, attachments, and position of omohyoid. Among the 35 cadavers studied, double omohyoid was present in one cadaver, inferior belly originated from the clavicle in three cadavers, superior belly merged with the sternohyoid in two cadavers, and the omohyoid received additional slips from the sternum in one cadaver. Standard attachment and position of the omohyoid was observed in the remaining cadavers. Variations of this muscle are important because of its close relation to the large vessels and brachial plexus. Because of the direct adhesion of the intermediate tendon to the anterior wall of the internal jugular vein and its connection with it through a thin lamina of the pretracheal layer of the cervical fascia, the contraction of the omohyoid muscle has a direct effect on the lumen of this vessel.

The extensor digitorum brevis manus, a supernumerary muscle in the fourth extensor compartment of the dorsum of the wrist, is a relatively rare anomalous muscle. Extensor digitorum brevis should be included in the differential diagnosis of soft tissue masses on the dorsal aspect of the hand as it may mimic cystic, neoplastic, inflammatory, and infectious masses arising in the dorsum of the wrist. Seventy-two upper limbs of male and female cadavers were dissected and examined to study the pattern of extensor tendons of the index finger. In the present study, we observed three cases (4.2%) of the extensor digitorum brevis manus on the left side. In one cadaver (0.72%), there was an additional tendon arising from the extensor indices which was inserted to the radial side of the dorsal digital expansion of the index finger. The extensor digitorum brevis manus muscle (EDBM), an anatomic variant of the extensor muscle of the dorsum of the hand, is found in approximately 2% to 3% of the population. This variation is, therefore, clinically and surgically relevant because the EDBM may be the only muscle responsible for the independent extension of the second digit. The aim of the present study is to report the incidences of this muscle thereby creating awareness of its existence and of its characteristic appearance to surgeons.

Context: It was suggested that the accessory neurovascular foramina of the mandible might be of significance in relation to the effectiveness of local anesthesia following the routine inferior alveolar nerve block. Aims: To investigate the incidence of neurovascular foramina over the lingual surface of the mandible in South Indian population. Settings and Design: The study was conducted at the department of anatomy. Materials and Methods: The study included 67 human adult dry mandibles, the exact ages and sexes of which were not known. The location and number of neurovascular foramina were topographically analyzed. Statistical Analysis Used: Descriptive statistics. Results: The foramina were observed in 64 mandibles (95.5%) and were often multiple in most of the cases. They were located between the two medial incisors in 8 mandibles (1.9%), between the medial and lateral incisor in 34 mandibles (50.7%; 25-bilateral; 7-right; 2-left), between the lateral incisor and canine in 7 mandibles (10.4%; 2-bilateral; 3-right; 2-left), between the canine and first premolar in 6 cases (8.9%; 3 on each side). Foramina were also present around the genial tubercle in 56 mandibles (83.6%). Among them, 52 mandibles showed a single foramen just above the genial tubercle, 34 mandibles had foramina below the tubercles, 13 mandibles had foramina on the right side of genial tubercle and 17 were having on the left side. Conclusion: Since the anatomical details of these foramina are important to various fields of dentistry and oncology, the present investigation was undertaken. The clinical significance and implications are emphasized.