Absence Of Spinous Process, Inferior Articular Facets And Laminae Encountered In A Fifth Lumbar Vertebra Osteology Demonstration: Case Report

There are total of five lumbar verteae. Out of five, four lumbar verteae show typical features. The fifth lumbar vertea shows certain atypical features. Lumbar verteae are identified as having massive kidney–shaped bodies, superior and inferior articular facets, pedicles and thick and quadrangular spine. We observed a malformed lumbar vertea in college bone bank during routine Osteology tutorials.

Efficacy of Ginkgo laminae on blood lipid, homocysteine and intimamedia thickness in recovery phase of cerebral infarction / 中国生化药物杂志

Objective To observe the influence of Ginkgo laminae on serum lipid, serum level of homocysteine (HCY) and carotid intima-media thickness (IMT) of patients in recovery phase of cerebral infarction. Methods 100 patients in recovery phase of cerebral infarction were randomly divided into treatment group and control group, with 50 cases in each group. The control group were given aspirin enteric coated tablets 0.1g qn po., atorvastatin calcium capsule 20mg qn po.; the treatment group on the basis of the control group were added Ginkgo laminae, 1 tablet per time, three times daily. The blood liqid and HCY levels pre-treatment and 1, 3 and 6 months post-treatment and IMT value pre-treatment and 6 months post-treatment were collected. Results The triglyceride level had no significantly change in two groups. The high density lipoprotein cholesterol 3, 6 months post-treatment in treatment group was significantly higher than control group(P<0.05). The cholesterol and low density lipoprotein cholesterin 1 ,3, 6 months post-treatment in two groups significantly decreased compared with pre-treatment(P<0.05), while there was no significant difference between two groups at each time point. The cholesterol in treatment group had a smooth decreasing, while it had an increasing trend in control group 3 months post-treatment. The HCY 3 months post-treatment in treatment group was significantly lower than pre-treatment and control group 1, 3 and 6 months post-treatment (P<0.05). The IMT 6 months post-treatment in treatment group was significantly lower than control gorup(P<0.05). Conclusion Ginkgo laminae combined with atorvastatin for reducing lipid, which could raise high density lipoprotein cholesterol and reduce cholesterol smoothly and lower IMT, with the effective protection on vessel. The blood homocysteine level decreases after taking Ginkgo laminae for three months, which also could improve impaired endothelial function induced by high level of HCY and slow down the process of atherosclerotic plaque.

Morphometric study of thyroid cartilage in Indian cadavers.

Introduction: The larynx is an air passage and a sphincteric device used in respiration and phonation. The larynx, from inside outwards has a framework of mucosa surrounded by fibro-elastic membrane which in turn is surrounded by cartilages and then a layer of muscles.As thyroid cartilage is the largest amongst all the laryngeal cartilage, its study is helpful in constructing biomechanical model, planning of larnygoplasty, positioning of thyroplasty window and analysis of CT and MRI scan. Aim: The aim of the present study is to estimate various dimensions of Thyroid cartilages in Indian subjects. Material & Methods: 50 larynx were obtained from embalmed cadavers, of which 10 larynx were of females. Thyroid cartilage was dissected from the larynx and morphometric analysis was done. Results & Conclusions: The average maximum height of the thyroid laminae was found to be 26.56 mm. ± 2.88 mm. on the right and 26.60 mm. ± 2.84 mm. on the left in males and 24.20 mm. ± 3.89 mm. on both right and left in females. The average width of the thyroid laminae was found to be 36.83 mm. ± 3.60 mm. on the right and 37.07 mm. ± 3.67 mm. on the left side in males and 31.85 mm. ± 3.69 mm. both on right and left in females. The average internal angle of thyroid cartilage was found to be 74.40° ± 8.21° in males and 92.35° ± 6.63° in females.

Morfometria das lâminas epidérmicas primárias e secundárias do casco de equinos / Morphometry of primary and secondary epidermal laminae in equine hoof

We studied the length of primary and secondary epidermal laminae of the toe and the lateral and medial quarters of horses, distributed into proximal, middle and distal thirds of the hooves. Eight limbs from adult crossbred horses, four females and four males, used to pull carts without pedal conditions. Fragments were taken from different regions of the hooves and subjected to conventional histological techniques. The samples were stained with hematoxylin-eosin and analyzed by light microscopy. The primary epidermal laminae were higher in the hooves of forelimbs compared to hindlimbs in the proximal and middle thirds and the regions of the medial quarter and toe. The secondary laminae were higher in forelimb of the middle third and medial quarter. Comparing the length of the epidermal laminae between hoof parts, it was seen that the primary laminae are lower in the proximal third and higher in the toe, while the secondary laminae are lower in the proximal third and medial quarter. The results suggested that the morphology of the laminae in the different regions of the hooves is influenced through the work performed by the animal, as well as through the different distribution of forces.

Foi estudado o comprimento das lâminas epidérmicas primárias e secundárias da pinça e dos quartos lateral e medial, distribuídas nos terços proximal, médio e distal dos cascos de equinos. Utilizaram-se os membros de oitos cavalos adultos utilizados para tração de carroças, que não apresentavam afecções podais, sendo quatro fêmeas e quatro machos, sem raça definida. Fragmentos foram retirados das diferentes regiões dos cascos e submetidos à técnica histológica convencional. As amostras foram coradas com H&E e analisadas em microscópio óptico. As lâminas epidérmicas primárias apresentaram-se maiores nos cascos dos membros torácicos em relação aos membros pélvicos nos terços proximal e médio e nas regiões do quarto medial e na pinça. As lâminas secundárias foram maiores também no membro torácico no terço médio e no quarto medial. Comparando-se o comprimento das lâminas epidérmicas entre as regiões do casco, observou-se que as lâminas primárias são menores no terço proximal e maiores na pinça, enquanto as menores lâminas secundárias estão no terço proximal e no quarto medial. Os resultados sugerem que a morfologia das lâminas nas diversas regiões do casco sofra influência do trabalho realizado pelo animal, assim como, das diferentes distribuições de força existentes no mesmo.

Density of primary and secondary epidermal laminae of equine hoof / Densidade das lâminas epidérmicas primárias e secundárias nos cascos de equinos

Differences in the microscopic morphology of the hoof in forelimbs and hindlimbs of horses have been scarcely reported in the literature, especially concerning the distribution of primary and secondary epidermal laminae in the different regions. This study aimed to determine the density of primary and secondary epidermal laminae in the hoof of horses. For this, it was used fore and hindlimbs of 16 adult mixed breed horses. With a cross section 0.5 cm above the sole, it was quantified the primary epidermal laminae in the regions of the toe, and of lateral and medial quarters. Fragments with about 1cm ³ were taken from the proximal, middle and distal thirds of the hooves, in the different regions, subjected to conventional histological techniques and examined with an optical microscope. Data were statistically analyzed in relation to the fore and hindlimbs and between their various regions. The density of primary epidermal laminae varied around the hoof circumference, with greater values in the hoof toe, which gradually decreased towards the bulb of the hoof, without difference between thoracic and pelvic limbs. The average density of the secondary epidermal laminae per primary epidermal lamina does not change around the circumference of the hoof. Our findings indicated that the density of epidermal laminae is not different between fore and hindlimbs. The variation in the density of primary epidermal laminae around the hoof seems to be part of an adaptive response to different stresses in each region. A better understanding of the structural morphology contributes to a better understanding of the diagnosis, pathophysiology, and treatment of disorders that affect the hoof.

Diferenças na morfologia microscópica dos cascos dos membros pélvicos e torácicos dos equinos têm sido pouco relatadas na literatura, principalmente no tocante a distribuição de lâminas epidérmicas primárias e secundárias nas diversas regiões. O propósito deste estudo foi quantificar a densidade de lâminas epidérmicas primárias e secundárias no casco de equinos. Foram utilizados membros torácicos e pélvicos de oito equinos adultos e sem raça definida. Em uma secção transversal de aproximadamente 0,5cm de altura da sola dos cascos foi quantificada a densidade das lâminas epidérmicas primárias tanto na região da pinça quanto dos quartos lateral e medial. Fragmentos com aproximadamente 1cm³ foram retirados dos terços proximal, médio e distal do casco, nas diferentes regiões e submetidos a técnica histológica convencional, a densidade de lâminas epidérmicas secundárias foi quantificada com auxilio de microscópio óptico. Os dados foram analisados estatisticamente em relação aos membros torácicos e pélvicos e entre suas diversas regiões. A densidade de lâminas epidérmicas primárias varia ao redor da circunferência do casco, sendo maior na região da pinça do casco e diminui gradualmente em direção ao bulbo do casco, não existindo diferença entre membros pélvicos e torácicos. A densidade média de lâminas epidérmicas secundárias por lâmina epidérmica primária não varia em torno da circunferência dos cascos, assim como, quando comparada entre os membros torácicos e pélvicos. A variação da densidade das lâminas epidérmicas primárias em torno do casco parece fazer parte de uma resposta adaptativa às diferentes tensões existentes em cada região. O melhor entendimento da morfologia das estruturas do casco contribui na melhor compreensão do diagnóstico, fisiopatologia e tratamento das afecções que as acometem.

Notes on the axial skeleton of the titanosaur Bonitasaura salgadoi (Dinosauria-Sauropoda)

Sauropod axial anatomy is particularly important in understanding morphological features and phylogenetic analyses. Spatial arrangement of zygapophyses and rib articulations, as well as their complex laminar development, help to recognize the relative position of isolated vertebral elements. The presence of anterior, mid and posterior elements along the cervical, dorsal and caudal series in Bonitasaura salgadoi allows the analysis of several anatomical characteristics. These include the pattern of neurocentral closure with unfused, partially fused and completely fused elements in a peculiar temporal sequence, as well as several neural spine modifications and the laminar arrangement. The variations in neural spine morphology include a lateral expansion of the distal tip in cervico-dorsal region, different lateral constituents of these lateral expansions, and a marked deviation in spine angulation. The spinal inclination allows the division into three easily recognizable vertebral regions separated by two landmarks, which adds support in the determination of an accurate vertebral position for isolated elements. Finally, an analysis of the vertebral laminae reveals the importance of examining vertebral series in order to recognize laminar homologies and developmental series. Two vertebral laminae are analyzed here.

A anatomia axial dos saurópodes compõe um conjunto dedados fundamentais para a caracterização morfológica dostáxons, bem como para a determinação de suas relações filogenéticas. A disposição espacial das zigapófises e articulações das costelas, assim como de seu complexo de lâminas acessórias, auxiliam no reconhecimento da posição relativa de elementos vertebrais isolados. A preservação de vértebras anteriores, médias e posteriores nas séries cervical, dorsal e caudal de Bonitasaura salgadoi permite a análise de características adicionais diagnósticas observadas ao longo das séries vertebrais. Estas incluem o grau de fusão da sutura neurocentral,havendo elementos livres, parcialmente fundidos a completamente fundidos em uma sequência temporal peculiar, assim como a presença de diversas modificações do espinho neural e a disposição laminar. As variações na morfologia do espinho neural incluem uma expansão lateral em seu ápice distal na região cervico-dorsal, outros componentes laterais distintos destas expansões, e um desvio crânio-caudal marcado pela angulação do espinho neural. A inclinação espinal permite a divisão em três segmentos vertebrais reconhecíveis separados por duas linhas de transição. Finalmente, a análise das lâminas vertebrais revela a importância de examinar a série vertebral a fim de reconhecer homologias nas lâminas e nas séries de desenvolvimento. Neste trabalho são analisadas duas lâminas vertebrais.

The Effects of Transection Injury and Local Infiltration of Phenol at the Sciatic Nerve on c-fos Expression in the Spinal Cords of Rats / 대한마취과학회지

BACKGROUND: Phenol has effects like surgical neurectomy, but may evoke pain after local infiltration in nerves. Transection of peripheral nerves may induce neuropathic pain through increased spontaneous discharge and other mechanisms. Proto-oncogene, c-fos, is an indicator of neuronal activity, and its expression in the spinal cord may be related to pain development, because inhibition of c-fos expression has corresponding effects like analgesia. We evaluated the effects of local infiltration of phenol and transection injury at the sciatic nerve on c-fos expression in the spinal cords of rats. METHODS: Sixteen male Sprague-Dawley rats were divided into 2 groups; transection of the sciatic nerve was performed for group 1; phenol was infiltrated into the sciatic nerve in group 2. Three hours, 1 week, 2 weeks, and 3 weeks after the experiment, the corresponding spinal cord was stained immunohistochemically for c-fos. RESULTS: c-fos was expressed from 3 hours to 2 weeks over the laminae of the dorsal horn in each group. Phenol increased the expression of c-fos initially, but decreased 1 week later. Transection injury did not increase it initially, but showed the peak expression at 1 week, and maintained it for 2 weeks. Therefore, it seems that phenol, rather than the transection injury, stimulates c-fos expression early, but decreases later. CONCLUSIONS: Phenol treatment, caused by chemical block due to protein denaturation and nonspecific inflammation, may induce less neuropathic pain than the transection of a nerve.