scholarly journals Anatomical characteristics of the major salivary glands of puma (Puma concolor Linnaeus, 1771)

2020 ◽  
Vol 21 ◽  
Author(s):  
Thiago Scremin Boscolo Pereira ◽  
Ana Letícia Daher Aprígio da Silva ◽  
Tatiana Morosini de Andrade Cruvinel ◽  
Paula Medeiros Passarelli ◽  
Mayara Elisa Rotta Loureiro ◽  
...  

Abstract The morphological knowledge of the salivary glands in wild species is fundamental, since these studiescan be used as conservation strategies, clinical treatments and the preservation of species threatened with extinction. Thus, the aim of the study was to anatomically describe the larger salivary glands: parotid, mandibular, sublingual and molar of the jaguar. For this, two specimens of puma (Puma concolor) were used, after death by road traffic accident, donated by the Clinical Surgical Service Department of the Veterinary Hospital “Dr. Halim Atique “(UNIRP). The animals were fixed with 10% aqueous formaldehyde solution, dissected, descriptively analyzed and photographed. Morphologically, the parotid gland is grayish-yellow in color, distinctly lobulated, and has a semilunar shape. This gland is located in the posterolateral region of the face and at its ventral end we observe the parotid duct. The mandibular gland presents a slightly rounded outline, a grayish color and its surface is covered by a capsule of connective tissue. This gland is located in the posterolateral region of the face and we find the mandibular duct at its ventral end. The monostomatic sublingual gland is located on the rostral border of the mandibular gland and it is covered by the mandibular lymph nodes. The molar gland is a yellowish-gray membranous protuberance, elongated, with rectangular shape and it lies dorsally to the labial commissure. Based on the dissections, we conclude that the morphological and topographic characteristics of salivary glands of puma follow the same structural pattern described for other species of carnivorous mammals (domestic and wild).

2020 ◽  
Vol 642 ◽  
pp. 163-177 ◽  
Author(s):  
Y Niella ◽  
AF Smoothey ◽  
V Peddemors ◽  
R Harcourt

In the face of accelerating climate change, conservation strategies will need to consider how marine animals deal with forecast environmental change as well as ongoing threats. We used 10 yr (2009-2018) of data from commercial fisheries and a bather protection program along the coast of New South Wales (NSW), southeastern Australia, to investigate (1) spatial and temporal patterns of occurrence in bull sharks and (2) environmental factors affecting bull shark occurrence along the coast of NSW. Predicted future distribution for this species was modelled for the forecast strengthening East Australian Current. Bull sharks were mostly harvested in small to larger estuaries, with average depth and rainfall responsible for contrasting patterns for each of the fisheries. There was an increase in the occurrence of bull sharks over the last decade, particularly among coastal setline fisheries, associated with seasonal availability of thermal gradients >22°C and both westward and southward coastal currents stronger than 0.15 and 0.60 m s-1, respectively, during the austral summer. Our model predicts a 3 mo increase in the availability of favourable water temperatures along the entire coast of NSW for bull sharks by 2030. This coastline provides a uniquely favourable topography for range expansion in the face of a southerly shift of warmer waters, and habitat is unlikely to be a limiting factor for bull sharks in the future. Such a southerly shift in distribution has implications for the management of bull sharks both in commercial fisheries and for mitigation of shark-human interactions.


Author(s):  
Smitha S. G. ◽  
Suhasini Hanumaiah ◽  
Arunima Sheeja

<p class="abstract"><strong>Background:</strong> The government of India imposed a nationwide lockdown from 24 March to 14 April 2020, to contain the highly contagious corona virus. The aim of the study was to reflect upon the psychosocial impact of lockdown 1.0 on the population in terms of assaults, self-inflicted injuries and road traffic accidents during the 21 days of lockdown.</p><p class="abstract"><strong>Methods:</strong> This was a prospective observational study done in KIMS hospital and research centre during nation-wide lockdown 1.0 i.e. from 24 March to 14 April 2020. Patients who visited emergency medicine department with history of assault, self-inflicted injuries, road traffic accidents sustaining injuries to ear, nose, neck and other regions of the face were included in the study.</p><p class="abstract"><strong>Results:</strong> A total of 32 patients who sustained injuries in the head and neck region during the 21-day lockdown period and came to our institution were included. Out of the 32 injuries, 6 injuries were to the ear, 12 to nose,5 to the neck region and 9 to other facial regions. There were 18 assault cases causing head and neck injuries,3 were self-inflicted wounds and rest were injuries due to road traffic accidents.</p><p class="abstract"><strong>Conclusions:</strong> Several problems emerged following the forced quarantine to combat COVID-19. These inexorable circumstances which are beyond normal experience, lead to stress, anxiety and a feeling of helplessness in all. There is a need to ameliorate people’s access to mental health support services geared towards providing measures for developing healthy coping mechanisms during such crisis.</p>


2019 ◽  
Vol 12 (4) ◽  
pp. 284-290
Author(s):  
Zeeshan Arif ◽  
B. R. Rajanikanth ◽  
Kavitha Prasad

Road traffic accidents are the leading cause of death among the Indian population. Motorcycle accidents are the most prominent type of injuries among road traffic accidents in India. In this prospective cross-sectional study, all the patients attending three centers in north Bangalore, with facial injuries occurring from a motorcycle accident, were included. The subjects were analyzed for the type of collision, helmet use, type of helmet use, and fastening status of the helmets. A total of 311 motorcyclists were included in this study for a period of 18 months (December 2015 to June 2017). There were 79.7% males and 20.3% females. The most prominent age group was 21 to 30 years. The percentage of riders sustaining facial injuries was significantly more in the non-helmeted group. The most common injuries in open face helmets were in the middle and lower third of the face, whereas in closed face helmets it was in the middle third of the face. The numbers of injuries were significantly higher in the nonfastened helmet group as compared with fastened helmet group. Helmet fixation is an important characteristic along with helmet type for the better effectiveness and safety of the helmets for the motorcyclists.


2011 ◽  
Vol 9 (3) ◽  
pp. 411-422 ◽  
Author(s):  
M. R. Ahuja

This study reviews the various conservation strategies applied to the four redwood species, namely coast redwood (Sequoia sempervirens), Sierra redwood or giant sequoia (Sequoiadendron giganteum), dawn redwood (Metasequoia glyptostroboides) and South American redwood or alerce (Fitzroya cupressoides), which are endemic in the USA, China and South America, respectively. All four redwood genera belong to the family Cupressaceae; they are monospecific, share a number of common phenotypic traits, including red wood, and are threatened in their native ranges due to human activity and a changing climate. Therefore, the management objective should be to conserve representative populations of the native species with as much genetic diversity as possible for their future survival. Those representative populations exhibiting relatively high levels of genetic diversity should be selected for germplasm preservation and monitored during the conservation phase by using molecular markers. In situ and ex situ strategies for the preservation of germplasm of the redwoods are discussed in this study. A holistic in situ gene conservation strategy calls for the regeneration of a large number of diverse redwood genotypes that exhibit adequate levels of neutral and adaptive genetic variability, by generative and vegetative methods for their preservation and maintenance in their endemic locations. At the same time, it would be desirable to conserve the redwoods in new ex situ reserves, away from their endemic locations with similar as well as different environmental conditions for testing their growth and survival capacities. In addition, other ex situ strategies involving biotechnological approaches for preservation of seeds, tissues, pollen and DNA in genebanks should also be fully exploited in the face of global climate change.


2021 ◽  
Author(s):  
Adriana Humanes ◽  
John Bythell ◽  
Elizabeth Beauchamp ◽  
Mitch Carl ◽  
Jamie Craggs ◽  
...  

AbstractCoral cover on tropical reefs has declined during the last three decades due to the combined effects of climate change, destructive fishing, pollution, and land use change. Drastic reductions in greenhouse gas emissions combined with effective coastal management and conservation strategies are essential to slow this decline. Innovative approaches, such as selective breeding for adaptive traits combined with large-scale sexual propagation, are being developed with the aim of pre-adapting reefs to increased ocean warming. However, there are still major gaps in our understanding of the technical and methodological constraints to producing corals for such restoration interventions. Here we propose a framework for selectively breeding corals and rearing them from eggs to 2.5-year old colonies using the coral Acropora digitifera as a model species. We present methods for choosing colonies for selective crossing, enhancing early survivorship in ex situ and in situ nurseries, and outplanting and monitoring colonies on natal reefs. We used a short-term (7-day) temperature stress assay to select parental colonies based on heat tolerance of excised branches. From six parental colonies, we produced 12 distinct crosses, and compared survivorship and growth of colonies transferred to in situ nurseries or outplanted to the reef at different ages. We demonstrate that selectively breeding and rearing coral colonies is technically feasible at small scales and could be upscaled as part of restorative assisted evolution initiatives. Nonetheless, there are still challenges to overcome before selective breeding can be implemented as a viable conservation tool, especially at the post-settlement and outplanting phases. Although interdisciplinary approaches will be needed to overcome many of the challenges identified in this study, selective breeding has the potential to be a viable tool within reef managers’ toolbox to support the persistence of selected reefs in the face of climate change.


Author(s):  
Iftikhor Obidjonovich Nigmatov ◽  
◽  
Shukhrat Abdujalilovich Boymuradov ◽  
Jamolbek Abdukakhkhorovich Djuraev ◽  
Yusupov Shokhrukh Shukhratovich ◽  
...  

The high growth of injuries, the absence in the country of a unified approach to the treatment of victims with pathology of the bones of the face and skull leads to a sharp increase in the number of patients with post-traumatic deformities, defects, often to their disability and death. This problem has recently acquired the greatest importance in connection with the increase in the number of victims in areas of natural disasters and road traffic accidents. Severe multiple fractures of the bones of the middle zone of the facial skeleton, accompanied by craniocerebral trauma of varying degrees, bleeding and liquorrhea, are often outwardly unnoticeable, since they are hidden by pronounced edema, hemorrhages in soft tissues, and can only be determined with a targeted specialized examination. These types of examinations and the provision of specialized medical care are possible only in multidisciplinary centers. Therefore, these types of injuries are not always diagnosed in a timely manner, especially in severely injured with the presence of pronounced injuries of other localizations.


2021 ◽  
Vol 32 (3) ◽  
pp. 136
Author(s):  
Nyoman Ayu Anggayanti ◽  
Endang Sjamsudin ◽  
Melita Sylvyana

Pendahuluan: Sialolithiasis adalah penyakit umum kelenjar saliva. Gejalanya termasuk pembengkakan kelenjar yang terlibat, terutama selama makan, dan nyeri tekan, yang mungkin mereda tetapi dapat kambuh kembali. Sialolith terjadi terutama di kelenjar submandibula (80-90%) dan pada tingkat yang lebih rendah di kelenjar parotid (5-20%). Sialolith bisa tunggal atau jamak. Multipel sialolith di kelenjar submandibula jarang terjadi. Tujuh puluh dari delapan puluh persen kasus memiliki sialolith tunggal, hanya sekitar 5% pasien yang memiliki tiga atau lebih sialolith. Faktor etiopatogenesis terkait dengan pembentukan sialolith adalah obstruksi, penurunan laju aliran saliva, dehidrasi, infeksi kelenjar saliva, dan terganggunya kelarutan kristaloid. Tujuan penulisan laporan kasus ini untuk menjelaskan etiopatogenesis dan terapi kasus multipel sialolithiasis kelenjar submandibula. Laporan kasus: Seorang wanita 24 tahun datang dengan pembengkakkan dan nyeri pada submandibula kanan. Radiografi panoramik menunjukkan massa radiopak terdefinisi dengan baik dalam submandibula kanan. Interpretasi ultrasonografi menunjukkan massa tak homogen hypoechoic dengan kalsifikasi ganda. Pengangkatan kelenjar submandibula dilakukan dengan pendekatan ekstraoral. Laporan kasus ini menunjukkan Gambaran sebanyak sembilan sialolith di kelenjar submandibula, yang dihilangkan dengan pendekatan ekstraoral. Simpulan: Etiopatogenesis dari pembentukan multipel sialolithiasis pada duktus kelenjar, yaitu faktor mekanis, inflamasi, kimiawi, dan infeksi. Diperkirakan bahwa alkalin serta saliva kental yang mengandung banyak sel mukus, memiliki persentase kalsium fosfat lebih tinggi seperti pada kelenjar saliva submandibula yang mendukung pembentukan sialolith. Pengangkatan kelenjar submandibula beserta sialolith dilakukan sebagai standar baku perawatan dan dapat menghindari kekambuhan. Pasien kontrol kembali satu minggu pasca operasi dengan kondisi baik dan dijadwalkan untuk pemeriksaan radiografis ulang enam bulan kemudian untuk memastikan tidak terjadinya pembentukan sialolith baru di saluran kelenjar saliva.Kata kunci: Multipel, sialolithiasis, kelenjar submandibula. ABSTRACTIntroduction: Sialolithiasis is a common disease of the salivary glands. Symptoms include the glands inflammation, especially during eating, and tenderness, which may subside but may recur. Sialoliths occur mainly in the submandibular glands (80-90%) and to a lesser extent in the parotid glands (5-20%). Sialolith can be singular or plural. Multiple sialoliths in the submandibular gland rarely occur. Seventy out of eighty per cent of cases have a single sialolith. Only about 5% of patients have three or more sialoliths. The etiopathogenetic factors associated with sialolith formation are obstruction, decreasing salivary flow rate, dehydration, salivary gland infection, and impaired crystalloid solubility. The purpose of this case report was to describe the etiopathogenesis and treatment of multiple cases of submandibular gland sialolithiasis. Case report: A 24-year-old woman presented with inflammation and pain in the right submandibular. Panoramic radiograph shows a well-defined radiopaque mass in the right submandibular. Ultrasound interpretation revealed a hypoechoic homogeneous mass with multiple calcifications. Removal of the submandibular gland was carried out with an extraoral approach. This case report showed the appearance of as many as nine sialoliths in the sub-mandibular gland, removed by an extraoral approach. Conclusion: Etiopathogenesis of the formation of multiple sialolithiasis in the glandular duct are mechanical, inflammatory, chemical, and infectious factors. It is thought that alkaline and thick saliva, which contains many mucus cells, has a higher percentage of calcium phosphate than in the submandibular salivary glands, which support the formation of sialoliths. Submandibular gland removal along with the sialoliths is performed as the treatment standard, which can avoid recurrence. The control visit is carried out one week postoperatively in good condition, and the patient is scheduled for another radiographic examination six months after to ensure that no new sialoliths occurred in the salivary gland.Keywords: Multiple, sialolithiasis, submandibular gland.


2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Alex Augusto de Abreu Bovo ◽  
Marcelo Magioli ◽  
Alexandre Reis Percequillo ◽  
Cecilia Kruszynski ◽  
Vinicius Alberici ◽  
...  

Abstract: Human-modified landscapes (HMLs) are composed by small, isolated and defaunated forest fragments, which are surrounded by agricultural and urban areas. Information on species that thrives in these HMLs is essential to direct conservation strategies in local and regional scales. Since HMLs are dominant in the Atlantic Forest, we aimed to assess the mammalian diversity in a HML in southeastern Brazil and to propose conservation strategies. We collected data of terrestrial (small-, medium- and large-sized) and volant mammals in three small forest fragments (10, 14 and 26 ha) and adjacent areas, between 2003 and 2016, using complementary methods: active search, camera trapping, live-traps, mist nets and occasional records (i.e., roadkills). In addition, we used secondary data to complement our species list. We recorded 35 native mammal species (6 small-sized, 16 medium- and large-sized, and 13 bats) and seven exotic species in the HML. The recorded mammal assemblage (non-volant and volant), although mainly composed of common and generalist species, includes three medium- and large-sized species nationally threatened (Leopardus guttulus, Puma concolor and Puma yagouaroundi) and two data deficient species (Galictis cuja and Histiotus velatus), highlighting the importance of this HML for the maintenance and conservation of mammal populations. Despite highly impacted by anthropogenic disturbances, the study area harbors a significant richness of medium- and large-sized mammals, being an important biodiversity refuge in the region. However, this biodiversity is threatened by the low quality of the habitats, roadkills and abundant populations of domestic cats and dogs. Therefore, we stress the need of conservation strategies focusing on the medium- and large-sized mammals as an umbrella group, which could benefit all biodiversity in the landscape. We recommend actions that promotes biological restoration, aiming to increase structural composition and connectivity of the forest fragments, reducing roadkills and controlling the domestic cats and dogs' populations, in order to maintain and improve the diversity of mammals in long-term.


2020 ◽  
pp. 1-3
Author(s):  
Mehvash Khan ◽  
Shaarang Gupta ◽  
Aayushi Aayushi ◽  
Ratnakar Sharma

Background: Since time immemorial, soft-tissue defects of face due to injuries have been documented in literature and even depicted in sculptures, reflecting the image of society. Facial injuries themselves are rarely life-threatening, but are indicators of the energy of injury. Soft-tissue defects of the face can arise out of various causes which may include simple or complex contused lacerations with loss of tissue, avulsions, bites and burns. Common etiologies are road traffic accidents, foreign bodies, defects secondary to tumor excision, homicidal trauma, thermal, chemical and electrical burn, suicidal injuries, human bites, animal bites, gunshot injuries and blast injuries. The management of acquired soft tissue defects of face requires precise planning and coverage by a modality which is functionally and aesthetically pleasant. Objectives: To study the epidemiology of acquired soft tissue defects of face. To restore the aesthetics of the face by resorting to appropriate modality of reconstruction. Materials & Methods: This study was conducted in the Department of Surgery, Govt. Medical College Jammu, J&K, India and included 40 patients having been diagnosed with acquired soft-tissue defects of the face admitted in surgery ward from November 2018 to October 2019 (Prospective study). All the defects were evaluated for size, depth, and status of the base of the defect (presence of gross contamination or infection, integrity, and viability of the wound edges) along with evaluation and documentation of cranial nerve function, particularly the facial and trigeminal nerves. The management depended upon the defect site, size, status and type. 52.5 % patients underwent flap coverage whereas 22.5% underwent skin grafting for coverage of defects. 25% of the patients underwent primary closure of the facial defects. Results: Majority of the patients had restoration of anatomy and normal function after reconstructive procedures with colour and contour matching of that of the recipient site. No major complication was encountered in any of the patients. Conclusion: Acquired soft tissue defects of the face can be reconstructed by a variety of modalities which should not only be functionally adequate but also aesthetically appealing. Flaps are a versatile modality of reconstruction with the choice of flap being governed by the site and size of the defect.


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