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L Rai

Publications and source records attributed to L Rai.

12 recordsLinked to original sources
PubMed1998

Erythrocyte indicators of oxidative stress in gestational diabetes.

Foetuses born to mothers with gestational diabetes are at increased risk of developing respiratory distress, foetal macrosomia, foetal anomalies and platelet hyperaggregability. High blood glucose level induces oxidative stress and decreases antioxidant defences. The present study discusses the possibility of lipid peroxidation and protein oxidation in both maternal and foetal erythrocytes as an indicator of oxygen radical activity. The level of lipid peroxidation and protein oxidation in erythrocytes was estimated in 20 mothers with gestational diabetes and their newborns. The maternal age varied between 19 and 42 y and foetal age ranged between 34 and 39 weeks. The proteolytic activities in the erythrocyte lysates obtained from mothers with gestational diabetes and their newborns were significantly greater [(mean +/- SD) 24.41 +/- 9.05 and 16.70 +/- 3.36 microM of amino groups/g haemoglobin, n = 20, respectively] than those from control group (10.18 +/- 4.84 and 14.64 +/- 6.21 microM amino groups/g haemoglobin, n = 15, respectively; p < 0.05 in both cases). Similarly erythrocyte malondialdehyde levels were significantly elevated in babies born to mothers with gestational diabetes (10.11 +/- 2.21 nM/g haemoglobin) when compared to controls (6.8 +/- 3.75 nM/g haemoglobin) (p < 0.05). In the erythrocytes of mothers with gestational diabetes, malondialdehyde levels correlated significantly with glycated haemoglobin levels (p < 0.01). The results of this study indicate that the oxidative stress induced by gestational diabetes manifests as increased lipid peroxidation and protein oxidative damage in the erythrocytes of both mothers with gestational diabetes and their newborn infants.

Adult↗
PubMed1994

Energy expenditure and ventilatory responses during Siddhasana--a yogic seated posture.

Reports of energy expenditure and ventilatory responses to yogic seated posture of Siddhasana are lacking in literature. Various cardio-ventilatory responses were studied in states of the horizontal supine, chair-sitting and Siddhasana. It was observed that sitting in Siddhasana posture was characterised by greater minute ventilation, larger tidal volume, higher oxygen consumption, greater CO2 elimination, higher heart frequency greater oxygen pulse and lesser as compared with other two postures. These observations suggest that Siddhasana is a mild type of exercise and may have its application in conditions of low cardio-respiratory reserves especially in individuals in whom heavy exercises are contra-indicated.

Adult↗
PubMed1993

Energy expenditure and ventilatory responses during Virasana--a yogic standing posture.

Energy expenditure and ventilatory responses to yogic standing posture of Virasana were studied on 10 healthy men (25-37 years of age). The results of various responses respectively to the horizontal supine, Chair-sitting and Virasana were: Minute Ventilation (VE) 7.64, 8.61 and 18.67 L/min; Respiratory Frequency (FR) 15.71, 15.70 and 21.45 Breath/min; Tidal Volume (VT) 0.496, 0.544 and 0.827 L/min; Oxygen consumption (VO2) 0.127, 0.234 and 0.573 L/min; Carbondioxide Elimination (VCO2) 0.127, 0.134 and 0.420 L/min; Respiratory Exchange Ratio (RER) 0.58, 0.57 and 0.69; Heart Frequency (FH) 65.2, 74.5 and 104.4 beats/min; Oxygen Pulse (O2P) 3.32, 3.17 and 5.45 ml/beat; Ventilatory Equivalent (VE-EQ) 36.78, 37.12 and 33.85; Multiple of Resting VO2 (METS) 0.96, 1.05 and 2.53 and Metabolic Cost (MC) 1.04, 1.13 and 2.76 Cal/min. Virasana posture was characterised by higher VE, FR, VT, VO2, VCO2, FH and O2P with lesser VE-EQ. The observations suggest that Virasana induces temporarily a hypermetabolic state characterised by enhanced sympathetic nervous system activity which gets inhibited during the adoption of resting supine shavasana posture.

Adult↗
PubMed1991

Effect of yoga training on exercise tolerance in adolescents with childhood asthma.

Forty six young asthmatics with a history of childhood asthma were admitted for yoga training. Effects of training on resting pulmonary functions, exercise capacity, and exercise-induced bronchial lability index were measured. Yoga training resulted in a significant increase in pulmonary function and exercise capacity. A follow-up study spanning two years showed a good response with reduced symptom score and drug requirements in these subjects. It is concluded that yoga training is beneficial for young asthmatics.

Adolescent↗
PubMed1990

Struma ovarii.

Explore the source record for details and available documents.

Aged↗
PubMed1989

Severe abruptio placentae--still unpreventable.

The management of abruptio placentae remains a problem, despite advances in medical science. This study analyses severity of abruption, resultant morbidity, and maternal and fetal mortality in 105 cases. Among the contributory factors, hypertension (44%) and grand multiparity (24%) were common. There was no maternal death among these cases, mainly because of liberal use of blood transfusion, prompt delivery, and careful fetal monitoring, but perinatal mortality remained high (73%). Factors responsible for this high perinatal mortality and its prevention are discussed.

Abruptio Placentae↗
PubMedDate not supplied

Symphysis fundal height curve--a simple method for foetal growth assessment.

In this prospective study, symphisis fundal height (SFH) was measured in centimeters at different weeks of gestation from 20th week onwards in 100 healthy women with uncomplicated pregnancies. A curve was plotted based on the mean SFH measurements with standard deviation. Readings were also arranged on the basis of 10th, 50th and 90th percentiles. Percentile curve was similar to the curve based on mean with standard deviation. The rate of growth was 1 cm per week between 20-32 weeks. Thereafter, there was a slight fall in the rate of growth. SFH measurement is a simple method of foetal growth assessment which can be utilized even by paramedical workers to screen for small for gestational age babies. It is better to have a standard curve derived from the population as there is regional variation.

Adult↗