Browsing by Author "Shukla, N"
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Item Central actions of angiotensin II on heart rate and blood pressure in mongrel dogs.(1989-08-01) Singh, R J; Shukla, N; Pandey, U S; Nishith, S DAngiotensin II is produced physiologically in response to renal ischaemia due to hypotension. It's effect on heart rate and blood pressure were studied on anaesthetised mongrel dogs. Angiotensin II was given in different concentrations, by intravenous, intraarterial in carotid artery and intracerebroventricular routes. Cervical vagotomy and carotid sinus inactivation were done is abolish the reflex inhibition produced by baroreflexes. Rise of B.P. is due to mainly peripheral vasopressor action of angiotensin II, however it is shown to have a central component as well. This is demonstrated by ICV injections. Tachycardia due to central action is also demonstrated in this study. Both actions are significant. This study also confirm the earlier findings that angiotensin II passes the blood brain barrier.Item Effect of bile salts and biliary obstruction on pancreatic secretion.(1972-04-01) Tandon, G S; Shukla, R C; Shukla, S N; Shukla, NItem Effect of intravesical and intraureteric pressure on the rate of urinary flow.(1964-07-01) Kumar, S; Shukla, NItem Effect of raised portal venous pressure on blood pressure, urine output and body fluids.(1984-07-01) Shukla, N; Saxena, A; Kumar, SAcute rise of portal venous pressure resulted in a fall of blood pressure and subsequent anuria which could be either due to the state of shock or may be reflex in origin. There also occurred an increase in extra-cellular fluid volume with an initial increase in both plasma volume and interstitial fluid volume. Subsequently the extra-cellular fluid volume remained at a high steady value whereas the plasma volume increased at the expense of interstitial fluid volume which decreased. It is further postulated that the rise of extra-cellular fluid volume is due to the shift of fluid from intra-cellular compartment of the extra-cellular compartment, as a defence mechanism to combat the state of shock.Item Examination stress in medical student: a study.(1993-11-01) Shukla, N; Verma, N S; Tandon, S N; Khanna, D N; Tewari, S; Pandey, U S; Singh, S KThe present study was conducted on 40 male and 10 female students appearing for the 1st MBBS examination. Two readings of pulse rate, blood pressure and electro cardiogram were taken viz 6 months (control) and 10 minutes prior to the examination. A significant increase was seen in the pulse rate and blood pressure readings before the examination as compared to the control readings. However, no significant change was observed in electro cardiographic recordings.Item Peripheral action of angiotensin II.(1986-04-01) Jain, P K; Shukla, N; Nishith, S DThe effects of angiotensin II were studied on isolated atrial preparations of nonreserpinised and reserpinised rabbits, before and after treating the preparations by propranolol. Peripheral action of angiotensin was cardioaccelerator via direct stimulation of beta-receptors of the atria in isolated atrial preparations.Item Primary gastric plasmacytoma.(1991-07-01) Sharma, S; Singhal, S; Kumar, L; Shukla, N; Rath, G KA rare case of primary plasmacytoma of the stomach is reported. The diagnostic value of gastroscopy leading to non-surgical management is highlighted. Radiation therapy is an effective alternative mode of treatment and should be employed as the primary modality of therapy.Item Pulmonary function tests in normal Indian children and changes in respiratory disorders.(1995-06-01) Srivastava, A; Kapoor, R K; Misra, P K; Srivastava, K L; Thakur, S; Shukla, NTo document the normal values of pulmonary function tests in children and changes occurring in their values with various respiratory disorders, a study was carried over a period of one year in 95 healthy controls (39 females and 56 males) of 8-13 years of age and 51 cases with respiratory disorders (bronchial asthma-31, pneumonia-10, empyema-10) of matched age, sex and height distribution. The lung functions studied were FVC, FEV1, FEV1/FVC, PEFR and FEF25-75%. In children with bronchial asthma, the FEV1/FVC%, PEFR and FEF25-75% were reduced in accordance with the severity of the disease. A typical restrictive pattern of equivalent decrease in FVC and FEV1 along with insignificant lowering of flow rates, i.e., PEFR and FEF25-75% was observed in pneumonia whereas in patients of empyema a combined pattern of significantly decreased FVC and FEV1 along with mildly reduced FEV1/FVC%, PEFR and FEF 25 75% was observed.Item Role of dopaminergic system in opioid-induced cardiovascular responses in dogs.(1989-12-01) Agarwal, R K; Pandey, U S; Dixit, K S; Shukla, N; Singh, S KA study was carried out to determine the involvement of dopaminergic system in opioid-induced cardiovascular responses in the dogs. The study population consisted of 32 mongrel dogs of either sexes. The results show that morphine given in small dose (2 mg/kg I.V.) causes significant fall in blood pressure. The results also show that there is involvement of dopaminergic system in opioid-induced vasomotor responses in dogs. Partial blockade of the parenterally induced hypotensive response of morphine by haloperidol given centrally induced hypotensive responses of morphine by haloperidol given centrally in doses, which are too low to be effective by the peripheral route, strongly favours the involvement of central dopaminergic system in the morphine-induced hypotensive responses. The results also show that the hypotensive response of morphine was almost completely blocked after naloxone pretreatment by central route.Item Some observations on pulmonary function tests in rice mill workers.(1988-04-01) Singh, S K; Nishith, S D; Tandon, G S; Shukla, N; Saxena, S KA study was carried out to determine the effects of rice husk dust on pulmonary functions in Rice mill workers. The study population consisted of 150 male Rice mill workers from 6 Rice mills with 50 controls of similar age, sex, ethnic group and agricultural work background. Twenty eight Rice mill workers showed obstructive, whereas eight workers showed restrictive type of pulmonary impairment. The results show that the duration of exposure of Rice husk dust is the workers is related to the degree of decline in FVC, FEV1, FEV3, PEFR and MVV. This could be attributed to allergic inflammatory reactions of pulmonary tissue due to Rice husk dust.Item Study of heart rate and blood pressure changes under distension of right and left atrial appendages in dogs.(1978-01-01) Agarwal, J L; Shukla, N; Tandon, G SFifteen healthy stray dogs of both sexes were employed in the present study. The effect of distension of right and left atrial appendages with normal saline was observed on heart rate and blood pressure under different situations. It has been found that distension of either appendages separately or simultaneously invariably evoked tachycardia without any appreciable change in blood pressure. Increase in heart rate was found to be of a same magnitude with 5 ml normal saline in both the atrial appendages. However, a higher response was obtained with 10 ml normal saline distension in case of right atrial appendage as compared to left one. Increase in the extent of distension causes more significant response, the receptors of which are stimulated and may be allied to stretch receptors. It is contended that tachycardia could be a reflex effect which is abolished by vagotomy. It is further contended that either afferent, efferent or both pathways exist in the vagi.Item A study of malnutrition and associated risk factors among children of age 06-59 months in rural area of Jabalpur district, Madhya Pradesh(Indian Association of Preventive and Social Medicine, 2018-03) Shukla, N; Toppo, NA; Thakur, A; Kasar, PK; Sharma, BBackground: “Malnutrition is a silent emergency”. Malnutrition is not only an important cause of childhood mortality and morbidity, but also leads to permanent impairment of both physical and mental growth of those who survive. Aims & Objectives: To determine the prevalence of malnutrition and association with various risk factors among children of age 06-59 months in rural area of Jabalpur district Madhya Pradesh. Material and Methods: Study was conducted among 517 children of age group 06-59 months in two randomly selected blocks of Jabalpur District. Multistage random sampling technique was used. Predesigned questionnaire was used to collect data and anthropometric measurements were done. Data analysis was done using Epi Info™ 7.1.5 and SPSS 20.0 (free trial version). Result: The prevalence of underweight, stunting and wasting were found to be 35.8%, 41.4% and 19.7% respectively while the prevalence of obese and overweight was 2.7% & 5.6% respectively. Children born with low birth weight, having higher birth order, more number of siblings, those with incomplete immunization status and inappropriate feeding practices were associated with malnutrition. Conclusion: The present study demonstrates the multiple risk factors for childhood malnutrition requiring multisectoral approach to fight against this silent killer.Item A study of peripheral nerve function in neonates and infants.(1996-01-01) Tiwari, S; Shukla, N; Misra, U KMotor and sensory nerve conduction velocity, H-reflex and F-response have been studied in the age group showing maximum changes i.e. neonates and infants. The nerve conduction velocity in upper and lower limbs was 25 M/S and 23.75 M/S respectively in neonate age group; 34.4 M/S and 32.4 M/S respectively in infant group. A significant relationship of age with nerve conduction parameters (velocity, terminal latency) has been observed in infants group but not so in neonate group. H-reflex (late response) was elicited in both Abductor Pollicis Brevis and Soleus. It was present in small muscles of hand (i.e. APB) in all the neonates and 55% of the infants only. This could be attributed to immaturity of nervous system. However, in the lower limb, H-reflex could be elicited in 100% of infants and neonates. In the present study, the relationship of age and height with different nerve conduction parameters as well as H-reflex (latency) has been highlighted.Item Study of pulmonary functions in swimmers of Lucknow city.(1997-01-01) Mehrotra, P K; Verma, N; Yadav, R; Tewari, S; Shukla, NIn this study, the pulmonary functions of young swimmers of K.D. Singh Babu Stadium, Lucknow were studied, 20 swimmers of the age group of 15-20 years were chosen along with 15 students as controls. The parameters taken into account were Forced Vital Capacity (FVC), Forced Expiratory Volume (FEV1) and Peak Expiratory Flow Rate (PEFR). Two sets of readings were recorded. One before the start and the other at the end of the practice season. These readings were compared to each other and also with the values of the controls. The results indicate that swimming has considerable effect on enhancing lung functions of an individual as FVC, FEV1, PEFR were significantly raised in swimmers after swimming session. Such results suggest that swimming may be induced in the exercise programme for rehabilitation of respiratory patients who have compromised lung functions.