RESUMO
Infection with Aphanomyces invadans is a serious fish disease with major global impacts. Despite affecting over 160 fish species, some of the species like the common carp Cyprinus carpio are resistant to A. invadans infection. In the present study, we investigated the transcriptomes of head kidney of common carp experimentally infected with A. invadans. In time course analysis, 5288 genes were found to be differentially expressed (DEGs), of which 731 were involved in 21 immune pathways. The analysis of immune-related DEGs suggested that efficient processing and presentation of A. invadans antigens, enhanced phagocytosis, recognition of pathogen-associated molecular patterns, and increased recruitment of leukocytes to the sites of infection contribute to resistance of common carp against A. invadans. Herein, we provide a systematic understanding of the disease resistance mechanisms in common carp at molecular level as a valuable resource for developing disease management strategies for this devastating fish-pathogenic oomycete.
Assuntos
Carpas/genética , Resistência à Doença/genética , Doenças dos Peixes/genética , Infecções/genética , Transcriptoma , Animais , Aphanomyces/patogenicidade , Carpas/imunologia , Carpas/microbiologia , Quimiocinas/genética , Quimiocinas/metabolismo , Doenças dos Peixes/imunologia , Proteínas de Peixes/genética , Proteínas de Peixes/metabolismo , Antígenos de Histocompatibilidade Classe I/genética , Antígenos de Histocompatibilidade Classe I/metabolismo , Infecções/imunologia , FagocitoseRESUMO
Background The present Bachelor of Medicine and Bachelor of Surgery (MBBS) curriculum under Tribhuvan University - Institute of Medicine (TU-IOM) was last revised twelve-years back. Though the curriculum was built upon internationally approved recommendations on curriculum design, it is ineffectively practiced in most medical schools of Nepal with major focus on didactic teaching-learning. The curriculum, hence, needs effective implementation and revision. Objective To identify the strengths, weaknesses, and areas of improvement in the medical curriculum through student-based feedback and outline the possibility of incorporating newer evidence-based teaching-learning methodologies in Nepal. Method This is a descriptive and cross-sectional study. With appropriate ethical approval, a questionnaire was developed and disseminated virtually to all medical students of Nepal under TU from MBBS fourth year onwards. The questionnaire comprised of Likert and close-ended questions. The data analysis was followed after receiving the filled questionnaire through Google forms. Result A total of 337 respondents participated in the study. The most effectively implemented components out of the SPICES model were Integrated learning (I) and Communitybased learning (C), with 73.89% and 68.84% responses. There were 94.7% (319) students who favored the incorporation of research in the core curriculum. Only 34.2% (115) students found PowerPoint lectures, the most utilized form of teachinglearning in Nepal, as engaging. The respondents (84.6%) showed a high degree of readiness to incorporate newer evidence-based teaching-learning tools such as flipped learning, blended learning, and peer-to-peer learning. Conclusion This study shows that effective interventions must be rethought on various aspects of the curriculum, taking students' feedback on the table while considering curricular revision.
Assuntos
Estudantes de Medicina , Estados Unidos , Humanos , National Academies of Science, Engineering, and Medicine, U.S., Health and Medicine Division , Nepal , Estudos Transversais , Universidades , Currículo , PercepçãoRESUMO
Background Despite a high burden, there are limited trainings in non-communicable disease research in Nepal. Objective We conducted a needs assessment to assess existing research training capacity in academic health institutions of Nepal for the prevention and control of noncommunicable diseases, identify gaps in research, and explore the feasibility of developing research training program in Nepal targeting non-communicable diseases. Method We did mixed-method research and reviewed academic institution curricula and scientific articles authored by Nepali researchers. We conducted 14 Focus Group Discussions with bachelor and masters level students of public health and community medicine; 25 In-depth Interviews with department heads and faculties, and government stakeholders. We surveyed medical and public health students on their research knowledge and skills development. Result Research methodology component was addressed differently across academic programs. One-third (33.7%) of students expressed lack of skills for analysis and interpretation of data. They felt that there is a wide scope and career-interest in non-communicable diseases research in Nepal. However, specific objectives in the curriculum and practical aspects regarding non-communicable diseases were lacking. Most of the non-communicable diseases research in Nepal are prevalence studies. Lack of funding, conflicting priorities with curative services, and inadequate training for advanced research tools were reported as major barriers. Conclusion Nepal must strengthen the whole spectrum of research capacity: epidemiological skills, research management, and fund development. Generation of a critical mass of non-communicable disease researchers must go together with improved funding from the government, non-governmental, and external funding organizations.
Assuntos
Doenças não Transmissíveis , Humanos , Doenças não Transmissíveis/prevenção & controle , Avaliação das Necessidades , Nepal/epidemiologia , Fatores de Risco , CurrículoRESUMO
Background Assessment drives learning. Student assessment cannot be neglected in the long ongoing online learning during COVID-19 pandemic to motivate and assess students' learning. Hence Patan Academy of Health Sciences (PAHS) conducted online assessment to medical undergraduates amidst limitations. Objective To measure the perception of online assessment of students which will provide applicable insights for the further improvement. Method This is a single center, cross-sectional and descriptive study. A Google form containing a semi-structured questionnaire was sent to MBBS students of Basic Science at PAHS who attended online classes and online examination. The responses from close ended questions expressed in percentage and Chi-square test was used to find the association. Open ended questions were analyzed using Braun and Clarke's thematic analysis. Result Of 118 students that responded, 75% passed the online examination. A majority of students (73%) stated that online exam motivated them in learning process and it could be a good alternative during pandemic time. However the most of students (56%) were unsatisfied with the modality of online assessment and reasons that they mentioned were technical problems (89%), inadequate online proctoring (77%), insufficient examination time (58%), lack of orientation to exam, lack of computer skills. Technical problem was worse in rural areas. Conclusion Even though online assessment motivated students' learning during online classes, a large number of students were unsatisfied with assessment modality.
Assuntos
COVID-19 , Estudantes de Medicina , Humanos , Pandemias , Estudos Transversais , Estudantes , PercepçãoRESUMO
Background Good governance and leadership are essential to improve healthy life expectancy particularly in low and middle-income countries (LMICs). This study aimed to epitomize the challenges and opportunities for leadership and good governance for the health system to address non-communicable diseases particularly cardiovascular diseases (CVD) in Nepal. Objective The objective of this study was to understand and document CVD programs and policy formulation processes and to identify the government capacity to engage stakeholders for planning and implementation purposes. Method A national-level task force was formed to coordinate and steer the overall need assessment process. A qualitative study design was adopted using "The Health System Assessment Approach". Eighteen indicators under six topical areas in leadership and governance in cardiovascular health were assessed using desk review and key informant interviews. Result Voice and accountability exist in planning for health from the local level. The government has shown a strong willingness and has a strategy to work together with the private and non-government sectors in health however, the coordination has not been effective. There are strong rules in place for regulatory quality, control of corruption, and maintaining financial transparency. The government frequently relies on evidence generated from large-scale surveys for health policy formulation and planning but research in cardiovascular health has been minimum. There is a scarcity of cardiovascular disease-specific protocols. Conclusion Despite plenty of opportunities, much homework is needed to improve leadership and governance in cardiovascular health in Nepal. The government needs to designate a workforce for specific programs to help monitor the enforcement of health sector regulations, allocate enough funding to encourage CVD research, and work towards developing CVD-specific guidelines, protocols, and capacity building. KEY WORDS Cardiovascular diseases, Governance, Leadership, Needs assessment, Nepal.
Assuntos
Doenças Cardiovasculares , Liderança , Humanos , Avaliação das Necessidades , NepalRESUMO
Although the association of discoid lupus erythematosus (DLE) with squamous cell carcinoma has been described in the literature, coexistence with a basal cell carcinoma is very rare. The indolent and non-pruritic nature of the lesion cause it often to be diagnosed at the late stage of the disease. Long-standing photosensitivity and chronic inflammation later lead to scarring and hypopigmentation, which are considered as the risk factors for the malignant changes over DLE. Incisional biopsy is often performed from the erythematosus lesion which does not respond to medical treatment. Here we have reported a rare case of basal cell carcinoma of the skin developing in the background of long-standing DLE, which was successfully managed with cold knife local excision.
Assuntos
Carcinoma Basocelular/complicações , Lúpus Eritematoso Discoide/complicações , Neoplasias Cutâneas/complicações , Idoso , Carcinoma Basocelular/cirurgia , Criocirurgia , Humanos , Masculino , Neoplasias Cutâneas/cirurgiaRESUMO
BACKGROUND AND PURPOSE: Hypomimia is a prominent clinical feature in people with Parkinson's disease (PD), but it remains under-investigated. We aimed to examine the clinical correlates of hypomimia in PD and to determine whether this is a levodopa-responsive sign. METHODS: We included 89 people with PD. Hypomimia was assessed from digital video recordings by movement disorder specialists. Clinical evaluation included use of the Unified Parkinson's Disease Rating Scale part III (UPDRS-III), and assessment of motor and non-motor symptoms using standardized clinical scales. The relationships between hypomimia and other clinical data were analysed using Mann-Whitney U-tests and regression analysis. RESULTS: Hypomimia occurred in up to 70% of patients with PD. Patients with hypomimia had worse UPDRS-III 'off-medication' scores, mainly driven by bradykinesia and rigidity subscores. Patients with hypomimia also had worse apathy than patients without hypomimia. Finally, we found that hypomimia was levodopa-responsive and its improvement mirrored the change by levodopa in axial motor symptoms. CONCLUSION: Our study provides novel information regarding the clinical correlates of hypomimia in people with PD. A better understanding of hypomimia may be relevant for improving treatment and quality of life in PD.
Assuntos
Doença de Parkinson , Antiparkinsonianos/uso terapêutico , Expressão Facial , Humanos , Hipocinesia , Levodopa/uso terapêutico , Testes de Estado Mental e Demência , Doença de Parkinson/complicações , Doença de Parkinson/tratamento farmacológico , Qualidade de VidaRESUMO
Columnaris disease, caused by Flavobacterium columnare, is one of the important bacterial diseases responsible for large-scale mortalities in numerous freshwater fishes globally. This disease can cause up to 100% mortality within 24â¯h of infection and is considered to be a cause of concern for aquaculture industry. Despite being a serious disease, scarce information is available regarding host-pathogen interaction, particularly the modulation of different immune genes in response to F. columnare infection. Therefore, in the present study, an attempt has been made to study expression of important immune regulatory genes, namely IL-1ß, iNOS, INF-γ, IL-10, TGF-ß, C3, MHC-I and MHC-II in gills and kidney of Catla catla following experimental infection with F. columnare. The expression analysis of immune genes revealed that transcript levels of IL-1ß, iNOS, IL-10, TGF-ß, C3 and MHC-I were significantly up-regulated (pâ¯<â¯0.05) in both the organs of the infected catla. IFN-γ and MHC-II were up-regulated in gills of infected catla whereas, both the genes showed down-regulation in kidney. The results indicate that important immune genes of C. catla are modulated following infection with F. columnare. The knowledge thus generated will strengthen the understanding of molecular pathogenesis of F. columnare in Indian major carp C. catla.
Assuntos
Carpas/genética , Carpas/imunologia , Doenças dos Peixes/imunologia , Proteínas de Peixes/genética , Proteínas de Peixes/imunologia , Animais , Infecções por Flavobacteriaceae/imunologia , Flavobacterium/fisiologiaRESUMO
Heteropneustes fossilis (Bloch) is an important candidate species for diversification of freshwater aquaculture in India. However, high mortality rate during larval rearing is the most serious bottleneck in commercial production of this species. A proper understanding of the ontogenic development of digestive system provides the basis to understand the nutritional physiology of larvae and develop appropriate feeding strategies. In the present study, the ontogenical development of the digestive tract in H. fossilis larvae was studied from hatching until 30 day post-hatching (dph) at 29 °C. At hatching (2.8 ± 0.2 mm standard length, SL), the digestive tract was undifferentiated and attached dorsally to the yolk sac. At 1 dph (2.9 ± 0.2 mm SL), the mouth opened and oral valves were visible. At 2 dph (3.0 ± 0.3 mm SL), goblet cells were observed in the buccoparyngaeal cavity. At this age, exogenous feeding started and the intestine was differentiated into the anterior and posterior regions, and the rudimentary liver and pancreas were also seen. Small supranuclear vacuoles were observed in the enterocytes of the posterior intestine at 2 dph. Zymogen granules were observed in acinar cells of pancreas by 3 dph, and islets of Langerhans were visible at 4 dph (3.5 ± 0.1 mm SL). At the same age, most of the yolk sac reserves were consumed, whereas they were completely exhausted by 5 dph (3.9 ± 0.5 mm SL). Between 4 and 6 dph, the liver elongated in size and started to accumulate lipids in the hepatocytes. Gastric glands were detected at 4 dph, and the pyloric sphincter was completely differentiated at 9 dph (6.1 ± 0.4 mm SL) as an epithelial fold that separated stomach from the anterior intestine. By 13 dph (8.6 ± 0.2 mm SL), profuse gastric glands were visible inside longitudinal mucosal folds of the stomach. The formation of gastric glands and their development were noticed as the last events in the development of the digestive tract in H. fossilis. This indicated the end of the larval period and the commencement of the juvenile stage. Considering these observations, it is suggested that H. fossilis larvae have a morphologically complete digestive tract by 13 dph. The findings of the study on the development of the digestive system in H. fossilis may help in synchronising the larval stage of development and feeding strategies and would be helpful in improving larval rearing techniques for catfish species.
Assuntos
Peixes-Gato/crescimento & desenvolvimento , Trato Gastrointestinal/crescimento & desenvolvimento , Envelhecimento , Animais , Larva/crescimento & desenvolvimento , Aumento de PesoRESUMO
SUBJECT AND METHODS: A total of 40 patients (M:F::26:14; age range: 37-84yrs; mean: 64.1yrs) with known chronic obstructive pulmonary disease (COPD) (ranging from mild to severe), referred for a stress myocardial perfusion study, were included in this study over a period of one year. All patients underwent adenosine stress in a titrated protocol and pre-infusion of short acting bronchodilator salbutamol 2 puffs few minutes prior to start adenosine infusion. In a fraction of 26 patients, pulmonary function tests (PFT) were performed and used in addition to clinical examination to classify the severity of pulmonary obstruction. On the basis of forced expiratory volume in one second (FEV1) on PFT, 4 patients had a mild disease (FEV1 60%-80%), 17 had a moderate obstructive disease (FEV1 41%-59%) and 4 had severe COPD/asthma (FEV1 <40%) while 2 patients had normal >95% FEV1. Post-stress questionnaire to assess subjective tolerance and symptoms were undertaken for all patients. RESULTS: The results demonstrated an excellent tolerance to adenosine infusion in this group of patients, with adequate stress achieved in all. None had complaints of severe dyspnoea or respiratory distress requiring medical intervention. Thirteen patients had mild to moderate degree dyspnoea during infusion. The study included a significant number of 23 elderly patients (>65 years), who showed better tolerance than the younger patients. CONCLUSION: In this pilot study in patients with COPD who referred for myocardial perfusion scintigraphy, the feasibility and safety of adenosine in a graded protocol along with a good pre-stress assessment and a short acting bronchodilator treatment was documented.
Assuntos
Adenosina/farmacologia , Asma/diagnóstico por imagem , Imagem de Perfusão do Miocárdio/efeitos adversos , Imagem de Perfusão do Miocárdio/métodos , Doença Pulmonar Obstrutiva Crônica/diagnóstico por imagem , Segurança , Estresse Fisiológico/efeitos dos fármacos , Adenosina/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Asma/fisiopatologia , Estudos de Viabilidade , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
Chlamydial infections are recognised as causative agent of epitheliocystis, reported from over 90 fish species. In the present study, the farmed striped catfish Pangasianodon hypophthalmus (14-15 cm, 70-90 g) with a history of cumulative mortality of about 23% during June and July 2015, were brought to the laboratory. The histopathological examination of gills from the affected fish revealed presence of granular basophilic intracellular inclusions, mostly at the base of the interlamellar region and in gill filaments. A concurrent infection with Trichodina spp., Ichthyobodo spp. and Dactylogyrus spp. was observed in the gills. The presence of chlamydial DNA in the gills of affected fish was confirmed by amplification and sequencing of 16S rRNA gene. BLAST-n analysis of these amplicons revealed maximum similarity (96%) with Candidatus Actinochlamydia clariae. On the basis of phylogenetic analysis, it was inferred that the epitheliocystis agents from striped catfish were novel and belonged to the taxon Ca. Actinochlamydia. It is proposed that epitheliocystis agents from striped catfish will be named as Ca. Actinochlamydia pangasiae. The 16S rRNA gene amplicons from novel chlamydiae were labelled and linked to inclusions by in situ hybridisation. This is the first report of epitheliocystis from India in a new fish host P. hypophthalmus.
Assuntos
Peixes-Gato , Chlamydiales/classificação , Doenças dos Peixes/patologia , Brânquias/patologia , Infecções por Bactérias Gram-Negativas/veterinária , Animais , Chlamydiales/genética , Chlamydiales/isolamento & purificação , Doenças dos Peixes/microbiologia , Brânquias/microbiologia , Infecções por Bactérias Gram-Negativas/microbiologia , Infecções por Bactérias Gram-Negativas/patologia , Índia , Filogenia , RNA Bacteriano/genética , RNA Ribossômico 16S/genéticaRESUMO
Background The most effective way for smokers to avoid or minimize the harmful effects is to quit smoking. Smoking cessation has been attributed to multiple factors operating at physiological, psychological, environmental and social level. There is common consensus that smoking cessation programs should be tailored for specific populations. However, there has been lack of data regarding factors that influence smoking cessation in Nepal, which has hindered the development of effective smoking-cessation interventions. Objective To assess the prevalence of quit attempts, successful quitting and the factors associated with them in a randomly selected, population-based adult participants in sub-urban Nepal. Method This cross-sectional study utilized data from the first wave of the baseline survey of the Dhulikhel Heart Study (DHS). A total of 2225 households of Dhulikhel city were enumerated and a third of the households (n=735) were randomly selected. Questions on tobacco use were ascertained using the questions based on the WHO STEPS survey questionnaire and questions on past quit attempts. Result Out of 1073 participants, 248 (23.1%) were current smokers and 99 (9.2%) were former smokers. Only 58% of the current smokers mentioned that they had attempted to quit smoking. When asked if they were interested in quitting if helped, almost 90.5% mentioned they were willing. Brahmins were less likely to have quit smoking (former smoker) compared to Newars (OR: 0.41, 95% CI: 0.18-0.90). We also observed that those who had high alcohol consumption were less likely to have quit smoking (OR: 0.36, 95% CI: 0.17-0.76). We didn't find any meaningful significant association between socio-demographic factors or other CVD risk factors and the quit attempts. Conclusion As the country braces to address the burden of non-communicable diseases in Nepal, it is crucial to incorporate tobacco cessation programs in the national health system to meet the global target of bringing tobacco consumption to less than 5% by 2040. We recommend future studies to get a broader understanding of quit effort and factors associated with thereby supporting the development of evidence-based strategies to address tobacco cessation.
Assuntos
Fumantes , Abandono do Hábito de Fumar/métodos , Adulto , Estudos Transversais , Feminino , Humanos , Intenção , Masculino , Pessoa de Meia-Idade , Nepal , Prevalência , Fatores de Risco , Fumar/epidemiologia , Inquéritos e QuestionáriosRESUMO
Background Integrated curriculum enhances students' learning and the retention of knowledge. At Patan Academy of Health Sciences, integrated organ system based curriculum is used with Problem Based Learning as the principle teaching learning method to foster students' learning. In addition, other approaches of integration were under taken such as integrated assessment; logical arrangement teaching learning methods (lectures and practicals); joint effort of faculty in curriculum planning and delivery; conducive environment to foster hidden curriculum. This study describes the perception of faculty and students on integration characteristics of Basic Science curriculum. Objective To measure the integration characteristics of Basic Science Curriculum. Method Tool was developed to measure integration characteristics of Basic Science Curriculum and ensure whether such planned integration has been achieved. Mixed method was used to measure the perception of the integration characteristics i) quantitatively by questionnaire survey to faculty and students ii) qualitatively by in-depth interview of students. Result Both faculty and students perceived that all the blocks in Basic Science was well integrated in the quantitative questionnaire survey. But, in the in-depth interview, students perceived integration of curriculum in organ system blocks were better integrated compared to Principle of Human Biology blocks where fundamentals of basic science disciplines were delivered. Students reflected that Problem Based Learning not only integrated Basic Science disciplines but also with clinical sciences and the social context. But, students perceived that Community Health Sciences curriculum was not so well integrated with Basic Science subjects. Conclusion Overall, this study showed that planned integration in Basic Science curriculum was successfully executed during curriculum implementation.
Assuntos
Currículo , Educação de Graduação em Medicina/métodos , Aprendizagem , Aprendizagem Baseada em Problemas/métodos , Humanos , Inquéritos e QuestionáriosRESUMO
A disease outbreak was reported in adult koi, Cyprinus carpio koi, from a fish farm in Kerala, India, during June 2015. The clinical signs were observed only in recently introduced adult koi, and an existing population of fish did not show any clinical signs or mortality. Microscopic examination of wet mounts from the gills of affected koi revealed minor infestation of Dactylogyrus sp. in a few koi. In bacteriological studies, only opportunistic bacteria were isolated from the gills of affected fish. The histopathological examination of the affected fish revealed necrotic changes in gills and, importantly, virus particles were demonstrated in cytoplasm of gill epithelial cells in transmission electron microscopy. The tissue samples from affected koi were negative for common viruses reported from koi viz. cyprinid herpesvirus 3, spring viraemia of carp virus, koi ranavirus and red sea bream iridovirus in PCR screening. However, gill tissue from affected koi carp was positive for carp edema virus (CEV) in the first step of nested PCR, and sequencing of PCR amplicons confirmed infection with CEV. No cytopathic effect was observed in six fish cell lines following inoculation of filtered tissue homogenate prepared from gills of affected fish. In bioassay, the symptoms could be reproduced by inoculation of naive koi with filtrate from gill tissue homogenate of CEV-positive fish. Subsequently, screening of koi showing clinical signs similar to koi sleepy disease from different locations revealed that CEV infection was widespread. To our knowledge, this is the first report of infection with CEV in koi from India.
Assuntos
Carpas/virologia , Infecções por Vírus de DNA/veterinária , Doenças dos Peixes/virologia , Iridoviridae/isolamento & purificação , Animais , Aquicultura , Carpas/crescimento & desenvolvimento , Células Cultivadas , Infecções por Vírus de DNA/virologia , Brânquias/virologia , Índia , Iridoviridae/classificação , Iridoviridae/genéticaRESUMO
Socio-behavioural factors and pathogens associated with childhood diarrhoea are of global public health concern. Our survey in 696 children aged ⩽2 years in rural West Bengal detected rotavirus as sole pathogen in 8% (17/199) of diarrhoeic stool specimens. Other organisms were detected along with rotavirus in 11% of faecal specimens. A third of the children with rotavirus diarrhoea, according to Vesikari score, had severe illness. The top four rotavirus genotypes were G9P[4] (28%), G1P[8] (19%), G2P[4] (14%) and G8P[4] (8%). In the multivariate model, the practice of 'drawing drinking water by dipping a pot in the storage vessel' [adjusted odds ratio (aOR) 2·21, 95% confidence interval (CI) 1·03-4·74, P = 0·041], and 'children aged ⩽6 months with non-exclusive breastfeeding' (aOR 2·07, 95% CI 1·1-3·82, P = 0·024) had twice the odds of having diarrhoea. Incidence of rotavirus diarrhoea was 24/100 child-years in children aged >6-18 months, 19/100 child-years in children aged >18-24 months and 5/100 child-years in those aged ⩽6 months. Results have translational implications for future interventions including vaccine development.
Assuntos
Diarreia/epidemiologia , Infecções por Rotavirus/epidemiologia , População Rural , Fezes/virologia , Feminino , Humanos , Incidência , Índia/epidemiologia , Lactente , Masculino , Razão de Chances , Fatores de Risco , Rotavirus/genética , Rotavirus/isolamento & purificaçãoAssuntos
Diabetes Gestacional , Feto/patologia , Placenta , Adulto , Feminino , Morte Fetal , Feto/anormalidades , Humanos , Achados Incidentais , Gravidez , Resultado da Gravidez , Gravidez de Gêmeos , GêmeosRESUMO
Macrophages play a significant role in non-specific defense mechanisms of all vertebrates against pathogens. One critical element in the area of fish immunology is the unavailability of in-vitro model of immune cells. Therefore, it is essential to develop methods for harvesting and culture of macrophages for assessing innate immune functions of rohu, Labeo rohita, an important culture fish of India. Head kidney leukocytes from were isolated by density gradient sedimentation, so as to exclude other cells. Among isolated leukocytes, only macrophages showed the unique property of sustained adherence on plastic surfaces. These cells exhibited optimum growth at 28 degrees C in L-15 containing 20% FBS. Cultured head kidney macrophages (HKM) demonstrated the property of phagocytosis as evidenced by engulfment of yeast cells. Bacterial lipopolysaccharide (20 microg/ml) resulted in functional activation of macrophages as seen by enhanced reactive oxygen and nitrite production; and lysosomal enzyme activity. These results show that in-vitro model of HKM cells can be used to study the role of macrophages in innate immune responses against various immunomodulators.
Assuntos
Cyprinidae/imunologia , Rim Cefálico/imunologia , Macrófagos/fisiologia , Animais , Separação Celular , Rim Cefálico/citologia , Lisossomos/enzimologia , Macrófagos/citologia , Nitritos/metabolismo , Fagocitose , Espécies Reativas de Oxigênio/metabolismoRESUMO
BACKGROUND: Malnutrition, especially under nutrition puts children at increased risk of morbidity and mortality and remains a serious barrier in child growth, development and survival. This is a major public health problem among under- 5 children in Nepal particularly in rural areas. OBJECTIVE: To assess the burden and contributing factors for malnutrition in hill community of Ilam district in eastern Nepal. METHOD: A cross sectional study was conducted in rural hill communities of Ilam district, Nepal with a sample of 240 under- 5 children. Anthropometric measurements were used as per WHO guidelines to asses three nutritional status: Underweight, Stunting, and Wasting using descriptive statistics and chi square test was applied using SPSS 12.0 to assess social and predisposing factors. RESULT: Seventeen percent of under- 5 children were moderately and 10.4 % were severely underweight. Similarly, 22.9%, and 17.5% were found to be moderately and severely stunted respectively. Less than 10% were found to be moderately and severely wasted. Older age group of children, education level of mother, not exclusive breast feeding practice had significant (p <0.05) effect on stunting. More than 50% children were affected with stunting, underweight and wasting at the same time. CONCLUSION: Significant proportion of under - 5 children were malnourished in the communities of the hilly areas. The study unveiled the importance of literacy and exclusive breast feeding for the prevention of malnutrition in under- 5 children.
Assuntos
Transtornos da Nutrição Infantil/epidemiologia , Transtornos do Crescimento/epidemiologia , Desnutrição/epidemiologia , Estado Nutricional , População Rural/estatística & dados numéricos , Transtornos da Nutrição Infantil/diagnóstico , Fenômenos Fisiológicos da Nutrição Infantil , Pré-Escolar , Estudos Transversais , Feminino , Transtornos do Crescimento/diagnóstico , Humanos , Masculino , Desnutrição/diagnóstico , Nepal/epidemiologia , Prevalência , Fatores de RiscoRESUMO
BACKGROUND: Smoking and health are intimately related and thus, smoking among future health care personnel is an important issue. As future physicians and dentists who will witness the continued burden of smoking-related diseases among their patients, represent a primary target for smoking prevention programs. OBJECTIVES: To explore the magnitude of smoking problem and assess the major causes aggravating the burden of smoking among medical and dental students. METHODS; A cross sectional study was conducted between June and July 2009 among 345 medical and dental students. Pre-tested self-administered questionnaire containing questions regarding smoking and its various correlates were used to collect the data. Chi square test was used for testing hypothesis. RESULTS: Prevalence of smoking was estimated as 38.4%, among whom majority started smoking during 15 to 19 years of life. Peer pressure was the major cause behind smoking (29.5%). Nearly one third of the participants used to consume alcohol along with smoking. Presence of parental smoking and use of other drugs were significantly associated with smoking among the students. CONCLUSION: Tobacco smoking is a significant health problem among the male medical and dental students. Medical and dental students were approached as they are the treatment providers for smoking and disease related to it in the future. The results in our study are discouraging and reveal that the medical knowledge regarding ill effects of smoking has not been able to check its use.
Assuntos
Academias e Institutos , Nível de Saúde , Fumar/epidemiologia , Estudantes de Odontologia/estatística & dados numéricos , Estudantes de Medicina/estatística & dados numéricos , Adolescente , Estudos Transversais , Humanos , Masculino , Nepal/epidemiologia , Prevalência , Estudos Retrospectivos , Fatores de Risco , Inquéritos e Questionários , Adulto JovemRESUMO
BACKGROUND: Proper antenatal care and good delivery practice helps to prevent the complications of childbirth and ensures a wholesome maternal and child health in the future. Almost half of the births in the developing countries take place without a skilled birth attendant. OBJECTIVES: To assess the antenatal care (ANC) and delivery practices in the Village Development Committees (VDC) of Ilam district, Nepal and to identify the relationship with the socio-demographic factors. METHOD: Cross sectional study of 262 mothers of reproductive age group having at least one child of less than five years of age, selected by simple random sampling, was carried out over different VDCs of Ilam by face to face interview using semi-structured questionnaire. RESULTS: Among 262 mothers, 34.7% were married before the age of 18 years. 69.5% of the mothers had attended four antenatal care visits. Nearly 47% of the deliveries were conducted at home out of which only 33.6% were conducted by skilled birth attendant. Number of children and maternal education were found to significantly affect the ANC visit and place of delivery. Age at marriage and age at first pregnancy were significantly associated with the place of delivery. CONCLUSION: Large proportion of mothers still do not have adequate antenatal visits and this is supported by the fact that nearly half of the deliveries were conducted at home. Motivation and incentives are required for pregnant mothers especially in rural areas regarding importance of adequate antenatal visits and delivery in health institutions. Population policies should be aimed at reducing proportion of women marrying and giving birth in their teens.