The Eruption Patterns of The Teeth of Nigerian Local Pigs. Part 1: Profile of Deciduous Teeth

2021 ◽  
Author(s):  
Michael Efeturi Okandeji ◽  
Ayodeji David Lijoka ◽  
Folusho Ayobami Atiba ◽  
James Olukayode Olopade
Keyword(s):  
Animal Models ◽  
Translational Research ◽  
Deciduous Teeth ◽  
Translation Research ◽  
Dental Research ◽  
Dental Eruption ◽  
The Family ◽  
Local Pigs ◽  
Research Studies

Abstract Background: The pigs, domesticated about 6000 years ago, are highly prolific omnivores belonging to the Family Suidae and Order artiodactyla along with their other hooved counterparts. They qualify as models for various translational research studies (including dental studies) because of their anatomical and physiological similarities to humans. There is however a dearth of information as regards the deciduous dental eruption profile (sequence and timing of eruption) of the Nigerian local pigs (NLP). This study was designed to determine the deciduous eruption profile in the NLP to assist in the management of the breed and in a bid to making the NLP more obvious as suitable animal models in dental research. A total of 51 healthy piglets (from postnatal day 1) were used for this. Their oral cavities were examined every other day for 29 weeks for signs of dental eruption. Looking at Mandibular (Md) and Maxillar (Mx) eruptions for Incisors (I), Canines(C), Premolars (P) and Molars (M), the modular sequence in the NIP was Md/ Mx I3(at birth), C (at birth) →Md I1→Md P3→MxP3 →MxI1 → Md I2 →MdP4 →MxP4 →MxP2→ Md I2 →MxI2 . Result: It was observed that variations in eruption timing exist amongst individuals and sexes while variation in eruption sequence exists between NLP and various breeds of pigs based on the literature.Conclusion: The results of this study will be particularly important to farmers, and researchers into NLP especially those using pigs in Nigeria as a model for translation research.

Orthodontic Aspects on the Chronological and Dental Age in Children with Down Syndrome

2018 ◽  
Vol 69 (1) ◽  
pp. 208-213
Author(s):  
Mariana Pacurar ◽  
Bogdan Dragomir ◽  
Alina Silvana Szalontay ◽  
Cristian Romanec
Keyword(s):  
Down Syndrome ◽  
Emotional Disorders ◽  
Metabolic Diseases ◽  
Genetic Disorder ◽  
Signs And Symptoms ◽  
Deciduous Teeth ◽  
Healthy Children ◽  
Dental Maturation ◽  
Children With Down Syndrome ◽  
The Family

Genetics is a key discipline in medicine, but also a clinical discipline with medical and social implications. The interest in reducing the number of genetic disorders and recognizing the risk of them repeating when a family confronts itself with a genetic anomaly becomes more and more important in the hierarchy of prophylactic emergencies. Presenting themselves as metabolic diseases (monogenic mutations) or malformations (polygenic and multifactorial heredity) because of their frequency, these disorders position themselves on an ascendant curve. They become difficult to deal with for the society, for the family and for the interested individual and cause emotional disorders. The Down syndrome is the most frequent type of genetic disorder. It is characterized by a specific set of signs and symptoms. People with Down syndrome require special medical care that, apart from the family, must include a team of doctors of various specializations and also a dentist. They are predisposed to hearing and sight disorders and thyroid problems as well. In 50% of the cases there are also anomalies of the heart, and the risk of leukaemia is 20 times higher. Some of them even develop an Alzheimer type dementia during their life. The people with Down syndrome can have an average IQ up to a moderate form of handicap. In particular, the studies on Down syndrome in dentistry are quite frequent, but they focus more on cavities, periodontal disease and hypodontia. In spite of this, the connection of Down syndrome and dental eruption is less studied. Consequently, the present study is intended to fill this missing part from the specialized literature, focusing on the relation between the Down syndrome and the chronological and dental ages in children. The health of the oral cavity is neglected in these patients, their parents focusing more on the treatment of the other systemic disorders of their children; the lack of interest is reflected in their poor oral hygiene.The trial group included 94 children with mixt dentition, aged between 6 and 12, divided as follows: 36 children with Down syndrome enrolled at the Educational Centre for Inclusive Education no. 1 of Tg. Mures and Alpha Transilvana Foundation. The chronology and the eruption sequences are subjected to certain variations and they are influenced by the presence of cavities, the premature loss or, on the contrary, the prolonged retention of deciduous teeth as well as dental anchylosis. Dental maturation is less subjected to variations, as it is a progressive, continuous and cumulative process. The presence of Down syndrome in children generates a delay in teeth eruption by 1.27 years compared to the data identified in the specialized literature and to the information obtained on the healthy children included in the study.

Evaluation of the Laxative activity of Saponin Enriched Hydroethanolic Pericarp extract of Sapindus emarginatus in Animal models

2020 ◽  
Vol 16 ◽  
Author(s):  
Lalitha Vivekanandan ◽  
Roxanne Gekonge Mandere ◽  
Sivakumar Thangavel
Keyword(s):  
Animal Models ◽  
Gravimetric Analysis ◽  
Triterpene Saponins ◽  
Laxative Effect ◽  
Saponin Content ◽  
The Family ◽  
Dose Dependent Increase ◽  
Dose Dependent ◽  
Efficacious Drug

Background: Constipation is a common, predominant, chronic gastrointestinal functional disorder. The drugs available to treat constipation are limited because of their side effects in long term use. So we need of efficacious drug to treat constipation. Sapindus emarginatus Vahl belongs to the family Sapindaceae, commonly known as soapnut. Traditionally used for the antipruritic, antifertility, constipation, and anti-inflammatory agents. Objective: The present study was undertaken to evaluate the laxative activity of hydroethanolic pericarp extract of Sapindus emarginatus (HESE) in animal models. Methods: The saponin content in extract was measured by gravimetric analysis. The laxative activity of hydroethanolic pericarp extract of Sapindus emarginatus is evaluated by the weight of feces matter, charcoal meal hyperperistalsis test, and loperamide induced constipation model. Results: The saponin content of the soapnut pericarp was 13.48 % and the extract was found to be 11.92 %. The results obtained from these models showed a significant dose-dependent increase in fecal weight, peristalsis index, and moisture content compared to control animals. Conclusion: The present study concluded that the oral administration of HESE showed a significant laxative activity by using different animal models. The presence of triterpene saponins is responsible for this activity. Further studies are needed to confirm their mechanism behind the laxative effect. The administration of extract was found to be a valid candidate in constipation therapy.

Ethical challenges of whole genome sequencing in translational research and answers by the EURAT-project

2015 ◽  
Vol 38 (4) ◽  
Author(s):  
Eva C. Winkler ◽  
Christoph Schickhardt
Keyword(s):  
Translational Research ◽  
Whole Genome Sequencing ◽  
Genome Sequencing ◽  
Incidental Findings ◽  
Whole Genome ◽  
Ethical Challenges ◽  
Research Subjects ◽  
Translation Research ◽  
Legal Questions ◽  
Legal Challenges

Abstract:The use of whole genome sequencing in translational research not only holds promise for finding new targeted therapies but also raises several ethical and legal questions. The four main ethical and legal challenges are as follows: (1) the handling of additional or incidental findings stemming from whole genome sequencing in research contexts; (2) the compatibility and balancing of data protection and research that is based on broad data sharing; (3) the responsibility of researchers, particularly of non-physician researchers, working in the field of genome sequencing; and (4) the process of informing and asking patients or research subjects for informed consent to the sequencing of their genome. In this paper, first, these four challenges are illustrated and, second, concrete solutions are proposed, as elaborated by the interdisciplinary Heidelberg EURAT project group, as guidelines for the use of genome sequencing in translation research and therapy in Heidelberg.

scholarly journals Family context and incidence of dental caries in preschool children living in areas covered by the Family Health Strategy in Salvador, Bahia State, Brazil

2012 ◽  
Vol 28 (6) ◽  
pp. 1183-1195 ◽  
Author(s):  
Tatiana Frederico de Almeida ◽  
Maria Isabel Pereira Vianna ◽  
Maria Beatriz Barreto de Souza Cabral ◽  
Maria Cristina Teixeira Cangussu ◽  
Fabiana Raynal Floriano
Keyword(s):  
Dental Caries ◽  
Mental Disorders ◽  
Common Mental Disorders ◽  
Family Health ◽  
Preschool Age ◽  
Deciduous Teeth ◽  
Health Strategy ◽  
High Caries Risk ◽  
The Family ◽  
Family Health Strategy

Psychosocial factors influence family care and can jeopardize child development. This study aimed to analyze the association between maternal common mental disorders and incidence of early dental caries in preschool-age children living in areas covered by the Family Health Strategy in Salvador, Bahia State, Brazil, in a cohort design. A total of 472 children were examined and their mothers were interviewed from 2007 to 2008. Incidence of at least one tooth with caries was 21.19%, while 7.84% of the children showed high risk of caries. The results after adjusting for the child's age and maternal schooling showed that maternal common mental disorders were associated with high caries risk in deciduous teeth (adjusted RR = 2.41, 95%CI: 1.05-5.56, among children with 6 or fewer home appliances in the household; adjusted RR = 3.44, 95%CI: 1.06-11.17, among those that brushed twice or less per day). Maternal mental problems were associated with the development of caries in preschoolers.

Sign in / Sign up

Export Citation Format

Share Document