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Biomedical subjects

S Kaur

Publications and source records attributed to S Kaur.

At least 145 records · Page 8Linked to original sources
PubMed1994

Differential increase in cytoplasmic pH at bud and germ tube formation in Candida albicans: studies of a nongerminative variant.

The changes in cytoplasmic pH (pHi) accompanying the morphological transition of Candida albicans were studied using a nongerminative variant. A transient cytoplasmic alkalinization at the time of evagination was observed in both the variant and its parent. Under zinc-deficient conditions the wild-type cells that formed buds at pH 4.5 and mycelia at pH 6.5 showed an increase in pHi of 0.58 and 0.12 pH units, respectively. Under similar conditions the pHi of the nongerminative variant that formed buds at both pH 4.5 and 6.5 increased by 0.66 and 0.40 pH units, respectively, suggesting that a greater magnitude of increase in pHi at the time of evagination is probably needed for bud formation. These results provide evidence for a correlation between intracellular alkalinization and time of cell differentiation in C. albicans.

Candida albicans↗
PubMed1994

Hormone profile & polycystic ovaries in acne vulgaris.

Thirty women with acne vulgaris, 20 of whom had moderate/severe acne and ten mild acne, and ten controls matched for age were studied. Grade of hirsutism and menstrual irregularities, if any, were recorded. Hormonal measurements included gonadotropins, LH/FSH, prolactin, testosterone and androstenedione in the early follicular phase and progesterone in the luteal phase to assess ovulation. Pelvic ultrasound examination for polycystic ovaries (PCO) was done in all subjects. Sixteen patients with moderate/severe acne and one with mild acne had polycystic ovaries on ultrasound. Patients with moderate/severe acne with polycystic ovaries had high luteinizing hormone, prolactin, testosterone and androstenedione and LH/FSH ratio of more than three. Patients with polycystic ovaries were detected to have at least one hormonal abnormality.

Acne Vulgaris↗
PubMed1993

Suppression of ADCC by immune complexes formed in vitro in Mycobacterium leprae-infected mice.

Antibody-dependent cellular cytotoxicity (ADCC) was assessed in mice infected experimentally with Mycobacterium leprae and injected simultaneously with in vitro-formed immune complexes (IC). Significant decrease in the ADCC function was observed in animals given IC at zero day (0dIC) and 3 months (3mIC) post inoculation with M. leprae, when ADCC activity was assessed at 3, 6 and 9 months period. From the data obtained we believe that ADCC is suppressed by IC formed in vitro.

Animals↗
PubMed1993

Keratitis, ichthyosis, deafness (KID) syndrome--the first report from India.

A patient with the keratitis, ichthyosis and deafness (KID) syndrome is described. The patient had recurrent skin infections which led to complete scalp hair loss. The nails were dystrophic. Physical development was normal; however, his intelligence was subnormal. The erythrokeratodermatous plaques over the face, trunk and extremities were characteristic and the skin in general was dry and hyperkeratotic. Palms and soles showed marked thickening with a stippled appearance.

Adolescent↗
PubMed1993

Tongue involvement in lepromatous leprosy.

BACKGROUND: Involvement of the oral cavity in lepromatous leprosy is well-documented. The tongue may demonstrate multiple nodules, thickening, and scarring. METHODS: Ten consecutive untreated patients with lepromatous leprosy with a bacteriologic index of 4+ or more were clinically and histopathologically studied for evidence of tongue involvement. RESULTS: Three patients showed clinical tongue involvement, as a nodulo-plaque lesion in one patient and fissured tongue (lingua plicata) in two patients. Tongue was clinically normal or showed nonspecific changes in the remaining seven patients. Histologic evidence of tongue involvement by lepromatous process was seen in six patients, including three without clinical involvement. CONCLUSIONS: We conclude from this study that the tongue is as prone to involvement by lepromatous process as buccal and palatal mucosa.

Adult↗
PubMed1993

Urticaria in children.

The etiologic factors responsible for urticaria were analyzed in 44 children seen in the Urticaria Clinic, a referral center of the Dermatology Department. Of these, 23 were girls and 21 boys. Nine (20.5%) had acute urticaria and 25 (79.5%) were diagnosed as having chronic urticaria. A definitive etiology factor was identified in 18 (40%) patients. Of these, 15 had physical urticarias; in 2 foods and in 1 drug was incriminated. Probable etiologic factors were identified in 19 (43%) patients, in 5 (11.3%) of whom more than one factor was identified. In 11 (25%) children, it was not possible to establish the cause. Our study suggests that etiologic factors of urticaria are more readily identifiable in children than in adults.

Acute Disease↗