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1.
Kathmandu Univ Med J (KUMJ) ; 20(78): 198-202, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-37017166

RESUMEN

Background Chronic kidney disease in children has been increasing over the years and is associated with high degree of morbidity and mortality. The cost of treating children with chronic kidney disease is also substantial. Prevention of this disease is the only long term solution in our context. Till date, there is limited data on chronic kidney disease in Nepalese children. Objective To study the epidemiological, clinical and etiological profile of children with Chronic Kidney Disease from 2 to 16 years of age presenting for the first time in tertiary care hospital. Method This is the prospective observational study carried out at the tertiary care hospital over a period of 3 years. Children between 2-16 years who were first time diagnosed of chronic kidney disease and had estimated glomerular filtration rate < 60 ml/ min/1.73 m2 for last 3 months were enrolled. Result There were total of 124 patients, of whom 78 were male with male to female ratio of 5:3 with mean age of 11.8±2.2 years. Chronic glomerulonephritis (23%), reflux nephropathy (23%) and nephrolithiasis (16%) were the commonest etiological diagnosis. Rapidly progressive glomerulonephritis and systemic lupus erythematous accounted for 85% cases of chronic glomerulonephritis. Vesicoureteric reflux and posterior urethral valve accounted for 85% cases of reflux nephropathy. In 32%, the cause could not be determined. Swelling (45%) and dyspnea (20%) were the chief presenting complaints. Pallor were seen in all cases (100%) followed by hypertension in 68% and short stature in 64%. Majority (60%) of the patients with chronic kidney disease presented in the stage V. Conclusion Chronic glomerulonephritis and reflux nephropathy were the commonest etiologies of chronic kidney disease, majority of them following rapidly progressive glomerulonephritis, systemic lupus erythematosis, vesicoureteric reflux and posterior urethral valve. The commonest clinical features were swelling, dyspnea, pallor and hypertension.


Asunto(s)
Glomerulonefritis , Hipertensión , Insuficiencia Renal Crónica , Humanos , Masculino , Niño , Femenino , Adolescente , Nepal/epidemiología , Centros de Atención Terciaria , Atención Terciaria de Salud , Palidez/complicaciones , Glomerulonefritis/complicaciones , Glomerulonefritis/epidemiología , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/complicaciones , Hipertensión/epidemiología , Derivación y Consulta , Riñón
2.
Kathmandu Univ Med J (KUMJ) ; 20(80): 452-455, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-37795723

RESUMEN

Background Lung cancer is one of the leading cause of cancer related death. Most common histopathology of lung cancer is non-small cell carcinoma of which adenocarcinoma is the most common. There are limited number of studies done in Nepal to know different aspects of lung cancer. Objective To know demographic parameters of patients diagnosed as lung cancer in a university hospital. The study also aims to know the different histopathological diagnosis of lung cancer. Method All the patients presenting to outpatient department (Cardio Thoracic and Vascular unit) of Dhulikhel Hospital, if are diagnosed as cancer of lung/bronchus will be included in the study. The duration of the study was January 2017 to December 2021. The details on age, gender, presenting symptoms, histopathology of lung cancer, operability will be included in database and will be analyzed. Result There were total of 127 patients diagnosed as lung cancer. Male:female ratio was 1.7:1. Overall mean age was 63.23 years (SD 13.5 years, Range 19-89 years). Non small cell carcinoma was the most common type of lung cancer with 83.7%. In non small cell carcinoma, most common type was Squamous cell carcinoma followed by undifferentiated and Adenocarcinoma. Only five (3.93%) cases were in operable stage. Conclusion Despite the fact that lung cancer is one of the most common cancer, patients usually present late and moslty are not in operable stage. This study shows that squamous cell carcinoma is the most common histopathology in lung cancer cases.


Asunto(s)
Adenocarcinoma , Carcinoma de Células Escamosas , Neoplasias Pulmonares , Humanos , Masculino , Femenino , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Neoplasias Pulmonares/epidemiología , Neoplasias Pulmonares/patología , Pacientes Ambulatorios , Nepal/epidemiología , Adenocarcinoma/diagnóstico , Adenocarcinoma/epidemiología , Adenocarcinoma/patología , Carcinoma de Células Escamosas/patología , Hospitales Universitarios , Estudios Retrospectivos
3.
Phys Rev Lett ; 126(8): 082301, 2021 Feb 26.
Artículo en Inglés | MEDLINE | ID: mdl-33709760

RESUMEN

Quasielastic ^{12}C(e,e^{'}p) scattering was measured at spacelike 4-momentum transfer squared Q^{2}=8, 9.4, 11.4, and 14.2 (GeV/c)^{2}, the highest ever achieved to date. Nuclear transparency for this reaction was extracted by comparing the measured yield to that expected from a plane-wave impulse approximation calculation without any final state interactions. The measured transparency was consistent with no Q^{2} dependence, up to proton momenta of 8.5 GeV/c, ruling out the quantum chromodynamics effect of color transparency at the measured Q^{2} scales in exclusive (e,e^{'}p) reactions. These results impose strict constraints on models of color transparency for protons.

4.
Kathmandu Univ Med J (KUMJ) ; 19(74): 282-284, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34819453

RESUMEN

Sydenham's chorea is an uncommon neurological manifestation of rheumatic fever and has many and varied differential diagnosis. It may mimic encephalitis when presents as an isolated feature even when silent cardiac lesions are present. Early diagnosis, treatment and penicillin prophylaxis prevents recurrence and progression of cardiac lesions. Prompt symptomatic relief and alleviation of distress is obtained with therapeutic intervention. A case of rheumatic chorea with silent cardiac valve lesions which mimicked herpes simplex encephalitis with choreoathetosis, in a 13 year old girl is presented along with review of literature.


Asunto(s)
Corea , Fiebre Reumática , Adolescente , Corea/diagnóstico , Corea/etiología , Diagnóstico Precoz , Femenino , Humanos , Fiebre Reumática/complicaciones , Fiebre Reumática/diagnóstico
5.
Phys Rev Lett ; 125(26): 262501, 2020 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-33449750

RESUMEN

We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75° with respect to the 3-momentum transfer q[over →]. The new data agree well with previous data, which reached p_{r}∼500 MeV/c. At θ_{nq}=35° and 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta p_{r}>700 MeV/c.

6.
Kathmandu Univ Med J (KUMJ) ; 18(70): 21-28, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33605234

RESUMEN

Background COVID-19 is significantly affecting the healthcare system globally. As a result, healthcare workers need to be updated on the best practices for the proper management of the disease. Objective The purpose of this study was to assess the knowledge, attitude, and practices (KAP) related to COVID-19 among healthcare personnel. Method This was a cross-sectional study conducted among medical personnel at Dhulikhel Hospital Kathmandu University Hospital using a semi-structured questionnaire on KAP related to COVID-19 from May 8th to June 8th, 2020. We analyzed survey data by using descriptive statistics. Spearman rank correlation, chi-square test and binary logistic analysis were used to examine the association between sociodemographic characteristics with KAP related to COVID-19. Result Among 220 participants, the majority were nurses (60%) followed by doctors (27.7%), paramedics (10%) and technicians (2.3%). The results showed that 68.6% of healthcare personnel had a good knowledge with appropriate practices (98.5%) and negative attitude (59.3%). In the multivariate binary logistic analysis, the healthcare workers with the clinical experience level of one to five years (OR:.42, 95% CI:.19- .96) and more than 5 years (OR: .16, 95% CI: .04-.63) were significantly associated with negative attitude. The confidence score for managing COVID-19 (OR:1.16, 95% CI:1.02-1.34) was significantly associated with an optimistic attitude. Conclusion Healthcare workers are knowledgeable about COVID-19 and proactively practising to minimize the spread of infection but lack optimistic attitudes. Hence, the constantly updated educational programmes related to COVID-19 for targeted groups will contribute to improving healthcare workers' attitude and practices.


Asunto(s)
COVID-19 , Estudios Transversales , Conocimientos, Actitudes y Práctica en Salud , Personal de Salud , Humanos , Nepal , SARS-CoV-2 , Encuestas y Cuestionarios , Centros de Atención Terciaria
7.
Kathmandu Univ Med J (KUMJ) ; 18(70): 117-119, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33605254

RESUMEN

The first case of coronavirus disease 2019 was reported on December 31, 2019 in Wuhan, China where the average case fatality rate was 6.1 ± 2.9%. There are 453 deaths as of September 24, 2020 in Nepal. We report the first death of a 29-years-old postpartum woman due to COVID-19 in Nepal who was referred from a rural health center to Dhulikhel Hospital. On arrival, she was taken to the acute respiratory zone of the emergency department to provide immediate lifesaving procedures. Despite the repeated resuscitative measures, return of spontaneous circulation could not be achieved. The real time polymerase chain reaction test was positive. Our case report highlights the importance of early clinical suspicion, importance of "safety first" in healthcare settings, and the chain of management in such patients. We consider the fact that a postpartum woman registered as the first case of COVID-19 related death in Nepal to be an area of further study.


Asunto(s)
COVID-19 , Adulto , Resultado Fatal , Femenino , Hospitales , Humanos , Nepal/epidemiología , Periodo Posparto , SARS-CoV-2
8.
J Econ Entomol ; 108(4): 1902-9, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26470333

RESUMEN

Brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is a highly polyphagous invasive insect pest from eastern Asia that feeds on numerous fruit, vegetable, and field crops. Four commercial vineyards in Virginia were sampled in 2012 and 2013 to study the basic biology, seasonality, and distribution pattern of H. halys in vineyards. At each vineyard, two blocks were selected. Weekly 3-min timed count visual samplings were performed in border and interior sections from late May until mid-September. Overwintering adult bugs were first detected in vineyards in May; however, the timing of first detection differed among vineyards. Egg masses were found primarily in June and July, and were usually found on the lower surface of grape leaves, although they were occasionally on the upper leaf surface, on the berry, or on the rachis. All developmental stages of H. halys were found in vineyards, suggesting that grape can serve as a reproductive host for H. halys. Substantial variation in H. halys densities was found among vineyards and throughout the growing season. The first instars were found on egg masses and after molting, dispersed throughout the grape vines. The date on which the first egg mass was collected was considered as a biofix. Based on a degree-day model, there were sufficient degree-days for completion of a generation in Virginia vineyards. Significantly higher numbers of H. halys were collected in border sections compared with interior sections. These results are discussed in relation to the potential pest status of H. halys in vineyards and implications for possible control strategies.


Asunto(s)
Heterópteros/fisiología , Animales , Heterópteros/crecimiento & desarrollo , Ninfa/fisiología , Dinámica Poblacional , Estaciones del Año , Virginia , Vitis/crecimiento & desarrollo
9.
Kathmandu Univ Med J (KUMJ) ; 13(52): 286-91, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-27423276

RESUMEN

Background Ultrasonography is one of the most common imaging modality to measure dimensions of visceral organs in children. However, the normal limit of size of visceral organs according to age and body habitus has not been specified in the standard textbooks. This might result in under detection of organomegaly in pediatrics population. Objective The objective of this study was to determine the normal range of dimensions for the liver, spleen, and kidney in healthy children. Method This is prospective cross-sectional, hospital-based study done at Tertiary-care teaching hospital. Participants included 272 pediatric subjects (152 male and 120 female) with normal physical or sonographic findings who were examined because of problems unrelated to the measured organs. The subjects were one month to 15 year (180 months) old. All measured organs were sonographically normal. Relationships of the dimensions of these organs with sex, age, body weight and height were investigated. Limits of normal dimensions of these organs were defined. Result Normal length of liver, kidneys and spleen were obtained sonographically for 272 children (152 male [55.9%] and 120 female [44.1%]) in the age group from 1 months to 15 (180 months) years. The mean age was 45.78 months (SD, 44.73). The measured dimensions of all these organs showed highest correlation with height and age so the descriptive analysis of the organ dimensions (mean, minimum, and maximum values, SD and 5th and 95th percentiles) were expressed in 10 age groups along with height range of the included children. The mean length of right kidney was shorter than the left kidney length, and the difference was statistically significant (p = 0.001). Conclusion This study provides practical and comprehensive guide to the normal visceral organ dimension in pediatric population. The normal range limit of the liver, spleen, and kidney determined in this study could be used as a reference in daily practice in local radiology clinics.


Asunto(s)
Riñón/crecimiento & desarrollo , Hígado/crecimiento & desarrollo , Bazo/crecimiento & desarrollo , Adolescente , Factores de Edad , Peso Corporal , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Lactante , Riñón/anatomía & histología , Hígado/anatomía & histología , Masculino , Tamaño de los Órganos , Estudios Prospectivos , Valores de Referencia , Bazo/anatomía & histología , Centros de Atención Terciaria
10.
Clin Exp Immunol ; 175(2): 215-26, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24215168

RESUMEN

A myelopoiesis gene signature in circulating leucocytes, exemplified by increased myeloperoxidase (MPO) and proteinase 3 (PR3) mRNA levels, has been reported in patients with active anti-neutrophil cytoplasm antibody-associated vasculitis (AAV), and to a lesser extent during remission. We hypothesized that this signature could predict disease relapse. mRNA levels of PR3, MPO, selected myelopoiesis transcription factors [CCAAT/enhancer binding protein α (CEBP-α), CCAAT/enhancer binding protein ß (CEBP-ß), SPI1/PU.1-related transcription factor (SPIB), spleen focus forming virus proviral integration oncogene, PU.1 homologue (SPI1)] and microRNAs (miRNAs) from patient and control peripheral blood mononuclear cells (PBMC) and polymorphonuclear cells (PMN) were analysed and associated with clinical data. Patients in stable remission had higher mRNA levels for PR3 (PBMC, PMN) and MPO (PBMC). PR3 and SPIB mRNA correlated positively in controls but negatively in patient PBMC. Statistically significant correlations existed between PR3 mRNA and several miRNAs in controls, but not in patients. PR3/MPO mRNA levels were not associated with previous or future relapses, but correlated with steroid treatment. Prednisolone doses were negatively linked to SPIB and miR-155-5p, miR-339-5p (PBMC) and to miR-221, miR-361 and miR-505 (PMN). PR3 mRNA in PBMC correlated with time since last flare, blood leucocyte count and estimated glomerular filtration rate. Our results show that elevated leucocyte PR3 mRNA levels in AAV patients in remission do not predict relapse. The origin seems multi-factorial, but to an important extent explainable by prednisolone action. Gene signatures in patients with AAV undergoing steroid treatment should therefore be interpreted accordingly.


Asunto(s)
Antiinflamatorios/uso terapéutico , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/tratamiento farmacológico , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/genética , Anticuerpos Anticitoplasma de Neutrófilos/inmunología , Mieloblastina/genética , Prednisolona/uso terapéutico , Anciano , Femenino , Tasa de Filtración Glomerular , Humanos , Factores Inmunológicos/uso terapéutico , Recuento de Leucocitos , Masculino , MicroARNs/sangre , Poliangitis Microscópica/tratamiento farmacológico , Poliangitis Microscópica/genética , Poliangitis Microscópica/inmunología , Persona de Mediana Edad , Mieloblastina/sangre , Mielopoyesis/genética , Peroxidasa/sangre , Peroxidasa/genética , ARN Mensajero/biosíntesis , ARN Mensajero/sangre , Recurrencia , Factores de Transcripción/sangre , Factores de Transcripción/genética , Transcriptoma
11.
Cancer Gene Ther ; 30(11): 1543-1553, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37666898

RESUMEN

While the presence of tumor-infiltrating lymphocytes (TILs) associates with improved survival prognosis in ovarian cancer (OvCa) patients, TIL therapy benefit is limited. Here, we evaluated an oncolytic adenovirus coding for a human variant IL-2 (vIL-2) cytokine, Ad5/3-E2F-d24-vIL2 (vIL-2 virus), also known as TILT-452, as an immunotherapeutic strategy to enhance TIL responsiveness towards advanced stage OvCa tumors. Fragments of resected human OvCa tumors were processed into single-cell suspensions, and autologous TILs were expanded from said samples. OvCa tumor specimens were co-cultured with TILs plus vIL-2 virus, and cell killing was assessed in real time through cell impedance measurement. Combination therapy was further evaluated in vivo through a patient-derived xenograft (PDX) ovarian cancer murine model. The combination of vIL-2 virus plus TILs had best cancer cell killing ex vivo compared to TILs monotherapy. These results were supported by an in vivo experiment, where the best OvCa tumor control was obtained when vIL-2 virus was added to TIL therapy. Furthermore, the proposed therapy induced a highly cytotoxic phenotype demonstrated by increased granzyme B intensity in NK cells, CD4+ T, and CD8+ T cells in treated tumors. Our results demonstrate that Ad5/3-E2F-d24-vIL2 therapy consistently improved TILs therapy cytotoxicity in treated human OvCa tumors.


Asunto(s)
Infecciones por Adenoviridae , Antineoplásicos , Neoplasias Ováricas , Humanos , Animales , Femenino , Ratones , Linfocitos Infiltrantes de Tumor , Citocinas , Interleucina-2/genética , Interleucina-2/farmacología , Adenoviridae/genética , Carcinoma Epitelial de Ovario/genética , Carcinoma Epitelial de Ovario/terapia , Neoplasias Ováricas/genética , Neoplasias Ováricas/terapia
12.
Cancer Gene Ther ; 30(12): 1679-1690, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37949944

RESUMEN

Despite good results in the treatment of hematological malignancies, Natural killer (NK) cells have shown limited effectiveness in solid tumors, such as ovarian cancer (OvCa). Here, we assessed the potential of an oncolytic adenovirus expressing a variant interleukin-2 (vIL-2) cytokine, Ad5/3-E2F-d24-vIL2 (vIL-2 virus), also known as TILT-452, to enhance NK cell therapy efficacy in human OvCa ex vivo. Human OvCa surgical specimens were processed into single-cell suspensions and NK cells were expanded from healthy blood donors. OvCa sample digests were co-cultured ex vivo with NK cells and vIL-2 virus and cancer cell killing potential assessed in real time through cell impedance measurement. Proposed therapeutic combination was evaluated in vivo with an OvCa patient-derived xenograft (PDX) in mice. Addition of vIL-2 virus significantly enhanced NK cell therapy killing potential in treated OvCa co-cultures. Similarly, vIL-2 virus in combination with NK cell therapy promoted the best in vivo OvCa tumor control. Mechanistically, vIL-2 virus induced higher percentages of granzyme B in NK cells, and CD8+ T cells, while T regulatory cell proportions remained comparable to NK cell monotherapy in vivo. Ad5/3-E2F-d24-vIL2 virus treatment represents a promising strategy to boost adoptive NK cell therapeutic effect in human OvCa.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Neoplasias Ováricas , Humanos , Animales , Ratones , Femenino , Citocinas , Adenoviridae/genética , Línea Celular Tumoral , Neoplasias Ováricas/genética , Neoplasias Ováricas/terapia , Tratamiento Basado en Trasplante de Células y Tejidos
13.
Kathmandu Univ Med J (KUMJ) ; 9(34): 17-21, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22610862

RESUMEN

BACKGROUND: Neurocysticercosis is one of the common neurological morbidities in childhood. OBJECTIVES: To find the commonest mode of presentation of this disorder in children. The study also aims to find out the age at which it commonly occurs, commonest site affected in the brain and the ethnic group and region most commonly affected in Western Nepal. METHODS: Retrospective hospital based study carried out in the Department of Pediatrics, Manipal Teaching Hospital, Pokhara from June 2004 to June 2009. RESULTS: Over the period of five years, 678 patients were admitted for seizures; out of which 109 patients were diagnosed as having neurocysticercosis (16%). Out of them, 66 (60.5%) were males and 43 (39.4%) were females. The age of presentation varied from 18 months to 16 years, with mean age 9.77 years. The most common age of presentation was between 6-10 years (n=47; 43.1%) and 11-15 years (n=47; 43.1%). Maximum number of patients were from Kaski district (n=41; 37.6%) followed by Syangja (n=34; 31.1%).The commonest presentation was with seizures (n=85; 77.9 %); generalised seizures was present in 45 patients (52%). Psychiatric manifestations were present in 3 patients (2.7%). The lesions were found mostly in the parietal region (n=65; 59.6 %). Most of the lesions were single (n=89; 81.6%). Out of 109 patients, 74 patients (67.8%) improved without any recurrence of symptoms on two years follow-up. CONCLUSION: Neurocysticercosis is a preventable zoonotic disease which results in significant morbidity in children where sanitary measures are inadequate. Any child presenting with a first episode, afebrile seizure should be screened for neurocysticercosis provided other common causes are ruled out.


Asunto(s)
Encefalopatías/diagnóstico por imagen , Encéfalo/diagnóstico por imagen , Neurocisticercosis/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adolescente , Distribución por Edad , Encefalopatías/complicaciones , Encefalopatías/epidemiología , Niño , Preescolar , Diagnóstico Diferencial , Femenino , Estudios de Seguimiento , Humanos , Lactante , Masculino , Morbilidad/tendencias , Nepal/epidemiología , Neurocisticercosis/complicaciones , Neurocisticercosis/epidemiología , Pronóstico , Estudios Retrospectivos , Convulsiones/diagnóstico por imagen , Convulsiones/epidemiología , Convulsiones/etiología , Distribución por Sexo
14.
Transplant Proc ; 50(10): 3720-3722, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30577262

RESUMEN

INTRODUCTION: Heart transplantation is an effective treatment option for end-stage heart failure patients. The effect of heart failure admission post heart transplantation has not been explored in the past. METHODS: We used the National Inpatient Sample to compare the outcome of hospitalization in heart failure patients after heart transplantation with heart failure patients without heart transplantation. We used diagnosis codes for heart failure and history of heart transplantation from International Classification of Disease-9 and Clinical Classification Software-Diagnoses codes. RESULTS: We used multivariable logistic regression for this purpose, which showed no difference in outcome in terms of mortality, length of stay, and cost. CONCLUSION: Our study showed similar outcomes in hospitalized heart failure patients regardless of the history of heart transplantation. This is an important statistic for outcome in a patient undergoing heart transplantation.


Asunto(s)
Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/mortalidad , Trasplante de Corazón/mortalidad , Adulto , Anciano , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Pacientes Internos/estadística & datos numéricos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
15.
Neurology ; 48(3): 752-7, 1997 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-9065560

RESUMEN

OBJECTIVE: To determine with greater precision the map location of the locus associated with familial cavernous hemangiomas. BACKGROUND: Cavernous malformations of the brain are a significant cause of seizures, progressive or apoplectic neurologic deficit, and headache. Prevalence estimates from autopsy series vary from 0.39 to 0.9%. This disorder (OMIM #116860) can be inherited as an autosomal dominant trait with variable penetrance. Linkage to markers on the long arm of chromosome 7 was recently reported in separate reports in three apparently unrelated Hispanic kindreds as well as in two kindreds of non-Hispanic descent. DESIGN/METHODS: We examined clinically, by MRI scanning, and by pathologic examination of surgical specimens, members of four large Mexican-American families segregating cavernous hemangiomas of the brain. Linkage analysis was performed with use of blood specimens from morphologically proven cases. Two-point linkage analysis was performed with the MLINK program of the LINKAGE package. Multipoint analysis was performed between two markers and the disease locus with LINKMAP in the FASTLINKAGE package. Allele frequencies were set as described by the Genome Database (GDB). Maximum penetrance for the disease allele was set to 0.75. RESULTS: The highest lod score was observed for marker D7S652 with Zmax = 6.66 at theta(max) = 0.00. Multipoint LOD score analysis placed the disease locus in the 11 cM interval between markers D7S630 and D7S527 with Zmax = 9.19. Haplotype analysis is in agreement with the placement of the disease gene between D7S630 and D7S527 and further shows a minimal shared region within this interval, indicating a founder effect in the establishment of the mutation in these families. CONCLUSIONS: We confirmed the linkage of cavernous hemangioma to markers on the long arm of chromosome 7q, and the estimate of the map location has been refined to a region of shared haplotype between markers D7S630 and D7S527 in four Mexican-American families who may be descended from a common ancestor in Sonora County, Mexico.


Asunto(s)
Neoplasias Encefálicas/genética , Cromosomas Humanos Par 7 , Ligamiento Genético , Hemangioma Cavernoso/genética , Hispánicos o Latinos , Adolescente , Adulto , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/etnología , Niño , Femenino , Marcadores Genéticos , Genotipo , Haplotipos , Hemangioma Cavernoso/diagnóstico , Hemangioma Cavernoso/etnología , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Convulsiones/etiología , Hemorragia Subaracnoidea/etiología
16.
Artículo en Inglés | MEDLINE | ID: mdl-7777911

RESUMEN

A total of 302 serum samples collected from Chitawan (159) and Mustang (143) districts of Nepal were included in this study. Anti-toxoplasma antibody was detected using micro-latex agglutination (MLA) and ELISA methods. An overall positive rate was found to be 57.9%. The positive rate in Chitawan was significantly higher (64.1%) (less than 1,000 m altitude) compared to that in Mustang (51.0%) (more than 3,000 m altitude) (p < 0.05). Females in Chitawan showed significantly higher positive rate (71.2%) compared to males (56.9%) (p < 0.05). On the contrary, though insignificantly, males showed higher positive rate (57.9%) compared to that of females (43.3%) in Mustang. Almost equal positive rate was observed among males in both study area. Females in Chitawan showed significantly higher (71.2%) positive rate compared to their counterparts in Mustang (43.3%) (p < 0.001). A slight increase in positive rate with age was observed in Chitawan while in Mustang a decreasing trend was noticed. Ethnically though statistically not significant, Indo-Aryans showed a higher positive rate (69.2%) compared to the positive rate shown by Tibeto-Burmans (63.1%) in Chitawan while the reverse was true in Mustang (Tibeto-Burmans: 53.8% and Indo-Aryans: 38.4%). Interestingly, 2.9% and 1.3% of MLA positive samples showed toxoplasma IgM antibody. None of the IgM positive samples were positive for toxoplasmic antigens.


Asunto(s)
Toxoplasmosis/epidemiología , Altitud , Animales , Anticuerpos Antiprotozoarios/análisis , Femenino , Humanos , Inmunoglobulina M/análisis , Masculino , Nepal/epidemiología , Prevalencia , Estudios Seroepidemiológicos , Factores Sexuales
17.
Artículo en Inglés | MEDLINE | ID: mdl-9185267

RESUMEN

The present study was carried out to ascertain the seroprevalence rate in different geographical areas in Central and Western Regions in Nepal. A total of 1,237 serum samples collected from Nuwakot (217), Kathmandu valley (402) and Chitawan (159) districts in Central Region, and Mustang (143), Surkhet (64) and Banke (252) districts in Western Region in Nepal were included in this study. Toxoplasma antibodies were detected by micro-latex agglutination (MLA) and enzyme linked immunosorbent assay (IgM-ELISA) methods. The seropositive rate in Central and Western Regions were found to be 48% and 49%, respectively; with an overall positive rate of 48 percent. Districtwise, the seropositive rate in Nuwakot, Kathmandu valley, Chitawan, Mustang, Surkhet and Banke districts were 38, 46, 64, 51, 67 and 44%, respectively. Interestingly, the relatively newly inhabited Surkhet district in Western Region and Chitawan district in Central Region showed significantly higher seropositive rate compared with those of two other districts in the respective Regions (p < 0.05). Ethnically, Tibeto-Burmans showed higher seropositive rates in Central Region (p > 0.05). In contrast, Indo-Aryans showed higher seropositive rate in Western Region (p > 0.05). Age related increase in seropositivity was observed only in Central Region. One percent of Toxoplasma antibody positive samples also showed Toxoplasma IgM antibody positivity.


Asunto(s)
Toxoplasma , Toxoplasmosis/epidemiología , Adulto , Pruebas de Aglutinación , Animales , Anticuerpos Antiprotozoarios/análisis , Femenino , Humanos , Inmunoglobulina M/análisis , Masculino , Nepal/epidemiología , Prevalencia , Estudios Seroepidemiológicos
18.
Boll Chim Farm ; 141(3): 202-9, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12197419

RESUMEN

Eudragit is being used as coating material in Microencapsulation technique for sustained release microcapsule formulation. In the present study, we have concentrated in evaluating the stability parameters of the Sulphamethoxazole microcapsules coated with Eudragit RS 100 and RL 100. Two sets of sample were studied, the first set was stored at room temperature for ten years and the second set is freshly prepared one. The second set of samples was subjected to various storage conditions for a period of six months. The samples were analyzed for drug content, dissolution, surface properties and physical properties. It was found that 70% of the core material is still intact in the ten year old sample. Similarly, dissolution studies of the ten year old sample of sustained release microcapsule showed that the drug release ranges from 4% in the first hour to 65% at the end of 8th hour. Whereas, the drug release from the freshly prepared microcapsule (keeping the manufacturing parameters same as that followed for old sample) ranged from 25% in the first hour to 98% at the end of 8th hour. IR spectra of the freshly prepared microcapsules and that of the ten year old microcapsules were found to be identical which shows that no interaction has occurred between the coating polymer and core substance even after ten years.


Asunto(s)
Antiinfecciosos/administración & dosificación , Antiinfecciosos/química , Sulfametoxazol/administración & dosificación , Sulfametoxazol/química , Resinas Acrílicas , Cápsulas , Preparaciones de Acción Retardada , Composición de Medicamentos , Estabilidad de Medicamentos , Excipientes , Microscopía Electrónica de Rastreo , Tamaño de la Partícula , Polímeros , Solubilidad , Espectrofotometría Infrarroja
19.
J Nepal Health Res Counc ; 12(27): 100-3, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25575001

RESUMEN

BACKGROUND: Microsurgery is an emerging subspecialty in Nepal. Microsurgery was started at Kathmandu Model Hospital in 2007 with the support from Interplast Australia and New Zealand. This study will be useful for establishing a baseline for future comparisons of outcome variables and for defining the challenges of performing microsurgical free flaps in Nepal. METHODS: A retrospective cross sectional study was conducted using the clinical records of all the microsurgical free flaps performed at Kathmandu Model Hospital from April 2007 to April 2014. RESULTS: Fifty-six free flaps were performed. The commonest indication was neoplasm followed by post-burn contracture, infection and trauma. Radial artery forearm flap was the commonest flap followed by fibula, antero-lateral thigh, rectus, tensor facia lata, lattisimus dorsi, deep inferior epigastric artery perforator, and deep circumflex iliac artery flap. Radial artery forearm flaps and anterolateral thigh flaps were mostly used for burn contracture reconstructions. Twelve of the 13 (92%) fibulae were used for mandibular reconstruction for oral cancer and ameloblastoma. Rectus flaps were used mainly for covering defects over tibia. Hospital stay ranged from six to 67 days with an average of fourteen. Fifteen patients (26%) developed complications. The duration of operation ranged from six hours to 10.5 hours with an average of nine hours. The longest follow up was for four years. CONCLUSIONS: Microsurgery can be started even in very resource-poor center if there is support from advanced centers and if there is commitment of the institution and surgical team.


Asunto(s)
Colgajos Tisulares Libres/estadística & datos numéricos , Adolescente , Adulto , Anciano , Quemaduras/cirugía , Niño , Estudios Transversales , Femenino , Peroné , Colgajos Tisulares Libres/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/cirugía , Nepal/epidemiología , Tempo Operativo , Arteria Radial , Estudios Retrospectivos , Muslo , Adulto Joven
20.
J Nepal Health Res Counc ; 10(22): 176-80, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23281446

RESUMEN

BACKGROUND: Violence against women in developing countries is very high with very little to choose between the cities and provinces. In Nepal too, violence against women is very rampant. This occurs despite physical violence against women being ascribed as criminal act by Domestic Violence Act. The main objective of the study was to see the association between postpartum depression and violence against women. METHODS: A prospective cohort study was conducted among pregnant women of reproductive age group in two centers. Standard questionnaires were used to collect data regarding violence and for detecting postpartum depression. Three interviews one in antenatal and two in postnatal period were taken. RESULTS: The incidence of postpartum depression was found to be 19.4 % (95% CI = 14.73 - 24.06) and 22.22% (95% CI = 17.30 - 27.09) during first (6 week postpartum ) and second (10th week) postpartum interview respectively. The incidence of physical, psychological and sexual violence was found to be 20.8% (95%CI= 16.01 - 25.58), 19.4% (95%CI= 14.73 - 24.06) and 13.9% (95% CI= 9.82 - 17.97) respectively. No statistically significant relationship could be found between different forms of violence and postpartum depression .The study showed that all the women with bad communication or conversation with the husband had postpartum depression while only 17.1% of women with good conversation had postpartum depression. CONCLUSIONS: No form of violence against women had statistically significant association with development of postpartum depression among Nepalese population.


Asunto(s)
Mujeres Maltratadas/psicología , Depresión Posparto/etiología , Maltrato Conyugal/psicología , Adolescente , Adulto , Mujeres Maltratadas/estadística & datos numéricos , Intervalos de Confianza , Depresión Posparto/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Nepal/epidemiología , Oportunidad Relativa , Embarazo , Estudios Prospectivos , Investigación Cualitativa , Maltrato Conyugal/estadística & datos numéricos , Encuestas y Cuestionarios , Adulto Joven
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