Studies on the electrolytes and microelements in Wistar rat following multiple exposures to acetamiprid.

A subacute toxicity study of acetamiprid was undertaken in 72 female Wistar rats randomly divided into four groups (18 each). Acetamiprid was administered orally at the dose rate of 0, 25, 100 and 200 mg/kg of body weight to rats of groups I, II, III and IV, respectively. Group I served as control.

The double digest problem: finding all solutions.

The strongly NP-complete Double Digest Problem (DDP), for physical mapping of DNA, is now used for efficient genotyping. Existing methods: are inefficient in tackling large instances; produce only one solution while an instance may have multiple distinct solutions. In this paper, we employ the notion of equivalence among the distinct solutions to obtain almost all of them.

Surface functionalized amorphous nanosilica and microsilica with nanopores as promising tools in biomedicine.

Cellular interactions with engineered nanoparticles (NPs) are dependent on many properties, inherent to the nanoparticle (viz. size, shape, surface characteristics, degradation, agglomeration/dispersal, and charge, etc.).

Celiac disease with mild to moderate histologic changes is a common cause of chronic diarrhea in Indian children.

Objectives: In developed countries, small bowel histology in coeliac disease is a spectrum, ranging from normal with increased intraepithelial lymphocytes to the classic flat mucosa. In developing countries, mild to moderate enteropathies in children with chronic diarrhea and growth failure are assumed to be caused by tropical sprue, persistent infections, or malnutrition with bacterial overgrowth. We report the prevalence and histology of coeliac disease in children with chronic diarrhea at a tertiary referral hospital in North India.

Endoscopic laser excision in the management of laryngotracheal stenosis.

Sixteen cases of Chronic laryngotracheal stensis were included in the study. They underwent endoscopic CO(2) laser excision of the stenotic segment. Three patients were decannulated.

Radiological evaluation of chronic laryngotracheal stenosis.

Sixteen cases of chronic laryngotracheal stenosis were assessed. They underwent complete ENT evaluation including indirect laryngoscopy, direct laryngoscopy, microlaryngoscopy and tracheoscopy. Preoperatively plain X-ray of soft tissue neck and computed tomography (CT) was done.

Invasive tracheobronchial aspergillosis in an immunocompetent person.

Tracheobronchial involvement is an uncommon form of invasive pulmonary aspergillosis and is found mainly in immunocompromised individuals such as patients with leukemia and prolonged granulocytopenia due to cytotoxic therapy, organ transplant recipients receiving high-dose corticosteroids, or patients with chronic granulomatous diseases. Rarely, such a pattern can also be seen in immunocompetent persons or can involve atypical sites such as the paranasal sinuses, skin, and the tracheobronchial tree. Occasionally, these patients require a prolonged course of antifungal agents.

Is chest x-ray or high-resolution computed tomography scan of the chest sufficient investigation to detect pulmonary metastasis in pediatric differentiated thyroid cancer?

We reviewed the clinical characteristics, pattern of disease at presentation, histopathologic subtype, treatment, course, and outcome of differentiated thyroid cancer (DTT) in children and adolescents presenting with pulmonary metastasis and tried to assess the effectiveness of routine chest x-ray and high-resolution computed tomography (CT) scan of the chest vis-à-vis 131I whole-body scan (WBS) in revealing pulmonary metastasis. In our series of 1754 patients, 122 (7%) were 20 years of age or younger, of whom 28 (23%) had pulmonary metastasis. Mean age was 13.

Spoke-wheel pattern in renal oncocytoma seen on double-phase helical CT.

Renal oncocytomas are benign, solid tumours of the kidney. An angiographic spoke-wheel pattern is known to be associated with oncocytomas, although it is not pathognomonic. On review of the literature, we found two reports of sonographic spoke-wheel appearance in oncocytomas.

Management of laryngotracheal stenosis using dilatation and stenting.

14 patients of chronic lai yngotracheal stenosis were studied They underwent dilatation land stenting follonmg GO laser excision of the stenotic segment 70% patients had improvement in airway and voice was improved in 64% of the patients.

Effect of yogic exercises on physical and mental health of young fellowship course trainees.

A study was undertaken to observe any beneficial effect of yogic practices during training period on the young trainees. 54 trainees of 20-25 years age group were divided randomly in two groups i.e.

Video-assisted thoracoscopic surgery for closure of patent ductus arteriosus in children.

Video-assisted thoracoscopic surgery (VATS) was recently described as an approach to clip the patent ductus arteriosus (PDA). Between May 1994 and May 1996, we performed this procedure on 34 children below 12 years of age (mean 7 years). Thirty-two had an isolated PDA and two had associated small perimembranous ventricular septal defect (VSD), diagnosed on echocardiography and colour flow mapping.

Abdominal pain in a young girl.

A 14-year-old girl was admitted to our hospital with peri-umbilical pain associated with obstipation and vomiting. Plain erect X-rays of the abdomen revealed multiple air fluid levels. A supine X-ray is shown in this figure.

Tubercular lymphadenitis: clinical manifestations.

One hundred and thirteen children suffering from tubercular lymphadenitis proven histopathologically, were studied for clinical and laboratory features. Age distribution was equal in all age groups except during infancy when it was rare. Sex ratio indicates a male preponderance with male to female in the ratio of 1.

Primary hyperparathyroidism in a 14 year old girl presenting with bone deformities.

A 14 year old girl with bilateral genu valgum of 6 years duration was brought for evaluation of primary hyperparathyroidism. She had clinical features of rickets such as frontal bossing, rachitic rosary, lumbar lordosis and fixed adduction deformity of the left leg. She had undergone osteotomy earlier for correction of these deformities without benefit.

Pulmonary alveolar microlithiasis--report of three cases with pulmonary function and exercise studies.

Pulmonary alveolar microlithiasis is a rare disease involving accumulation of calcific concretions in the alveoli of the lungs. Three cases of this disease are reported with their varying and unusual clinical features. Radiologic studies demonstrated presence of diffuse calcific densities in the lungs with varying degrees of emphysematous changes.

Percutaneous balloon mitral valvuloplasty in rheumatic mitral stenosis: an experience of 50 patients in India.

We attempted percutaneous balloon mitral valvuloplasty in 50 patients (27 female and 23 male, age 10-38 years) with rheumatic mitral stenosis. The procedure could be completed in 40 patients. The failures were caused by problems related to transseptal puncture in eight cases and inability to cross the mitral valve in two cases.

Angiographic recognition of coronary ostial stenosis in nonspecific aorto-arteritis.

A 17-year-old girl was seen with acute anterior myocardial infarction resulting in congestive heart failure. Clinical examination followed by detailed investigation revealed diffuse nonspecific aorto-arteritis, with left coronary ostial stenosis, which is a very rare association. The relevant literature is reviewed.

Percutaneous transluminal balloon pulmonary valvoplasty--long-term results.

Thirty-two patients with isolated valvar pulmonary stenosis (21 male; 11 female, age range 4 to 53 years, mean 14 years) underwent cardiac catheterization and balloon valvoplasty. Right ventricular systolic pressure before valvoplasty ranged from 65 to 210 mm Hg (mean 120.2 +/- 44.

Coronary arteritis in nonspecific aortoarteritis.

Nonostial distal coronary artery involvement in nonspecific aortoarteritis is rare. We report a 35-year-old patient with features of nonspecific aortoarteritis who had an inferolateral myocardial infarction and on coronary angiography was shown to have severe disease of the left circumflex artery in its middle third.

Pulmonary varix associated with mitral valve disease.

A case of pulmonary varices with mitral valve disease is presented with a detailed review of the literature. Two distinct categories of the disease, with and without left atrial hypertension, are emphasized.