scholarly journals Assessment and comparison of the levels of N-nitrosonornicotine and 4-(n-methyl-n –nitrosamino) -1-(3-pyridyl)-1-butanone in the saliva of tobacco chewers and non- chewers -a hospital based study

2018 ◽  
Vol 6 (2) ◽  
pp. 66
Author(s):  
Dr Harpreet Kaur Gandhoke ◽  
Dr Vasanti Lagali Jirge ◽  
Dr Anjana Bagewadi
Keyword(s):  
Statistical Analysis ◽  
Smokeless Tobacco ◽  
Statistical Difference ◽  
Study Groups ◽  
P Value ◽  
Sample Collection ◽  
Group Iii ◽  
Group I ◽  
The Mean ◽  
Tobacco Specific Nitrosamines

Background: Studies estimating the Tobacco- specific nitrosamines, (TSNA’s) which are the strongest carcinogens in the saliva oftobacco users and tobacco quitters, are limited.Objectives: To assess and compare the levels of N- nitrosamines (NNN, NNK) in the saliva of tobacco chewers and non -chewers including those who have quit the habit of tobacco use.Methods: The study included 120 patients who were divided into three groups of 40 each: Group I- Smokeless tobacco chewersGroup II- Tobacco chewers who have completely stopped the habit at least 2 weeks prior to sample collection andGroup III- non-chewers. The salivary levels of two tobacco specific nitrosamines; NNN & NNK levels were estimated in the three study groups. Statistical analysis was done by Kruskal– Wallis, one-way analysis of variance (ANOVA) test, Mann-Whitney U test. (p-value < 0.05 was considered to be statistically significant)Results: In Group I, the mean level of NNN was 651.84 ± 359.78 and mean level of NNK was 168.32 ± 131.83. In Group II, the mean level of NNN was 119.52 ± 95.05 and mean level of NNK was 42.78 ± 43.19. In Group III, the mean level of NNN was 3.44 ±6.55 and mean level of NNK was 1.98 ± 3.68. There was a statistical difference in the 3 groups with respect to mean levels of NNN and NNK.Conclusion: The study indicated that salivary tobacco-specific nitrosamines are elevated in tobacco chewers. Saliva can be used to detect TSNA’s and screen for TSNA’s during each patient’s de-addiction process.  

scholarly journals Comparing the rotational control during canine retraction using two different bracket systems – Synergy and Self Ligating brackets – Split mouth study

2019 ◽  
Vol 10 (2) ◽  
pp. 1346-1353
Author(s):  
Shreya Kishore ◽  
Saravana Dinesh SP ◽  
Srirengalakshmi ◽  
Arvind Sivakumar
Keyword(s):  
Statistical Difference ◽  
Frictional Resistance ◽  
P Value ◽  
Average Amount ◽  
Canine Retraction ◽  
Group I ◽  
The Mean ◽  
Group 2 ◽  
The Right ◽  
Arch Shape

Canine, being the cornerstone of the dental arches, shares an important role in oral functions, esthetics, arch shape and stability. With the new bracket systems that have come to light, which have reduced friction, there is not much literature on how much of a rotation control they have on the cuspids. Hence this study is conducted to compare the efficiency of two least frictional resistance offering brackets – Self-ligating and synergy brackets in terms of rotational control. The study was designed as a prospective randomized controlled split-mouth clinical trial, which included 16 subjects of ages 12-30 years, divided into two groups, left, and the right quadrants receiving Self Ligating and Synergy brackets based on simple randomization, along with a 19*25" SS wire and closed coil springs for individual canine retraction. The patients were reviewed every 21 days for four appointments, and records were taken for each review. Photographs were taken of the cast at every review, and the degree of canine rotation was measured and compared. The results indicate that there is no statistical difference between both the groups in the amount of canine rotation during individual canine retraction with a p-value greater than 0.05 at every interval. The results also indicate that there is a significant amount of canine rotation in Group 1 – Self-ligating brackets and Group 2 – Synergy brackets independently, when comparing T0 to every interval. Overall results show that there is no significant statistical difference between Synergy and Self-Ligating brackets in the amount of canine rotation during canine retraction. The mean or average amount of canine rotation for Group I Self-ligating was 3.32º ±6.55°. The mean or average amount of canine rotation for Group 2 Synergy was 4.08º ±3.85°.

Comparison of Dexmedetomidine and Fentanyl as Adjuvants to Intrathecal Levobupivacaine in Lower Segment Cesarean Section

2021 ◽  
Vol 15 (8) ◽  
pp. 2537-2541
Author(s):  
Madiha Zafar ◽  
Usman Zeeshan ◽  
Shazia Jang Sher ◽  
Aesha Sadaf Rizwan ◽  
Arooj Fatima
Keyword(s):  
Cesarean Section ◽  
P Value ◽  
Motor Blockade ◽  
Group Iii ◽  
Lower Segment Cesarean Section ◽  
Group I ◽  
Prolonged Duration ◽  
The Mean ◽  
Group Ii ◽  
Intrathecal Analgesia

Objective: To determine the effectiveness of dexmedetomidine on the spinal anaesthesia as an adjuvant to the hyperbaric levobupivacaine in patients undergoing cesarean section. Study Design: Comparative/Observational Place & Duration: The study was conducted at Anesthesiology/Obstetrics and Gynaecology departments of Mayo hospital, Lahore for duration of six months i.e from 1st November 2020 to 30th April 2021. Methods: This analysis included a total of 120 cases. After the informed consent the patients had received comprehensive demographics. Three equal classes of patients were divided into groups A, B and C. Group I had 40 patients and received 2.5 ml isobaric levobupivacane, group II with 40 patients and received 2.5 ml isobaric levobupivacaine and 5μg dexmedetomidine, and group III received 2.5 ml isobaric levobupivacaine and 25 μg fentanyl intrathecally. The outcomes of these groups were analysed in which sensory and motor blockage period were measured from the time the intrathecal drugs were administered. The full SPSS 26.0 version was used to analyze the results. Results: The mean age of the patients in group I was 27.44 ± 7.64 years with BMI 23.19±8.44, mean age in group II was 27.22 ±7.42 years with BMI 24.44 ± 6.16 and in group III mean age was 26.99 ±9.61 years with BMI 24.72 ±4.34. Duration of sensory and motor blockade was observed and resulted that it was earlier in group III as compared to group I and II. Prolonged duration of sensory and motor blockade was observed in group II as compared to groups I and III with significantly P value< 0.001. Conclusion: We concluded that for an adjuvant of 0.5 percent isobaric levobupivalacaine, Intrathecal dexmedetomidine induces both prolonged motor blockage and post operative analgesia than fentanyl. Key words: Levobupivacaine; Spinal anesthesia, Fentanyl, Intrathecal analgesia, Cesarean section; Dexmedetomidine.

scholarly journals COMPARATIVE EVALUATION OF THREE DIFFERENT COMPOSITE PLACEMENT TECHNIQUE USING DIFFERENT MODES OF CURING LIGHT ON PRIMARY TEETH: AN IN-VITRO STUDY

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Jyoti Sharma ◽  
Bhagwat Swaroop Sharma ◽  
Dr Updesh Masih ◽  
Manisha Upadhyay ◽  
Nilotpol Kashyap ◽  
...  
Keyword(s):  
High Intensity ◽  
In Vitro Study ◽  
P Value ◽  
Class V ◽  
Pulse Delay ◽  
Group Iii ◽  
Group I ◽  
The Mean ◽  
Placement Technique

Background: For the past several years, different techniques and materials have been examined to reduce microleakage in class V restorations. Thus both the quantity and quality of polymerization can be improved with proper selection of light curing modes and clinical placement techniques Aim: The aim of the present study was to evaluate and compare which is one of the best placement technique and mode of curing to reduce microleakage. Material and method: Class V cavities were prepared in 135 teeth. Teeth were divided into 3 groups of 45 each using three different placement technique with two different composite. Each group was further subdivided into 15 teeth cured by different curing modes. Results: The ‘p’ value of the mean scores of all the groups when cured with high intensity mode is 0.004 (≤0.05) indicating that the results are statistically significant. But the ‘p’ value of the mean scores of all the groups when cured with pulse delay and ramped mode is 0.603 and 2.167(≥0.05) indicating that the results are not statistically significant.  The ‘p’ value of the mean scores of group I and group II when cured with different mode is 0.065 and 0.085(≥0.05) indicating that the results are not statistically significant. But the ‘p’ value of the mean scores of the group III when cured with different mode is 0.001(≤0.05) indicating that the results are statistically significant. Conclusion: Split increment horizontal technique showed least microleakage despite of curing modes. Although curing modes did not show statistically significant results but high intensity showed least microleakage. Keywords: composite, G.V Black Classification, polymerization shrinkage, curing modes

Genoprotective role of vitamin E and selenium in rabbits anaesthetized with sevoflurane

2004 ◽  
Vol 23 (8) ◽  
pp. 413-419 ◽  
Author(s):  
Cetin Kaymak ◽  
Ela Kadioglu ◽  
Hulya Basar ◽  
Semra Sardas
Keyword(s):  
Dna Damage ◽  
Vitamin E ◽  
Comet Assay ◽  
Antioxidant Supplementation ◽  
Group Iii ◽  
Sevoflurane Anaesthesia ◽  
Group I ◽  
The Mean ◽  
Group Ii

In this study, genotoxic effects of repeated sevoflurane anaesthesia were investigated in rabbits with or without antioxidant supplementation. Twenty-one New Zealand male rabbits were included in the study and randomized into three groups as: placebo treated (Group I), vitamin E supplemented (Group II) and selenium supplemented (Group III). Vitamin E and selenium were given intraperitoneally for 15 days before anaesthesia treatment. Anaesthesia was administered using 3% sevoflurane in 4 L/min oxygen for a 3-hour period and continued for 3 days. Blood samples were collected before anaesthesia (Sample 1), after the first, second and third days of sevoflurane administration (Sample 2, Sample 3 and Sample 4 respectively) and the last samples were taken 5 days after the last sevoflurane administration (Sample 5). Genotoxic damage was examined using the comet assay. The degree of damage is assessed by grading the cells into three categories of no migration (NM), low migration (LM) and high migration (HM) depending on the fraction of DNA pulled out into the tail under the influence of the electric field. The number of comets in each sample was calculated (1 × number of comets in category NM + 2 × number of comets in category LM + 3 ×number of comets in category HM) and expressed as the total comet score (TCS), which summarizes the damage frequencies. In Group I, a significant increase in the mean TCSs was observed for Samples 3 and 4 as compared with Sample 1. However, there were no significant differences between Samples 1, 2 and 5. The mean TCS of Sample 4 was significantly higher than Sample 1, 2 and 3 in Group II. Group III demonstrated no significant mean TCSs for any experimental conditions. Statistical differences were also observed between the groups with significant P values. This experimental study points out the presence of DNA damage with repeated sevoflurane anaesthesia and the genoprotective role of antioxidant supplementation on DNA damage in mononuclear leukocytes of rabbits by highly sensitive comet assay.

Bone mineral density and spongiosa architecture in correlation to vertebral body insufficiency fractures

1998 ◽  
Vol 39 (5) ◽  
pp. 538-542 ◽  
Author(s):  
R. Andresen ◽  
S. Radmer ◽  
D. Banzer
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Vertebral Body ◽  
Unknown Etiology ◽  
Insufficiency Fractures ◽  
Mineral Density ◽  
Group Iii ◽  
Group I ◽  
The Mean ◽  
Group Ii

Objective: the clinical value of spinal quantitative CT (sQCT) and the structural patterns of the vertebral bone were studied Material and Methods: sQCT was performed on 246 patients with a mean age of 57 years for whom conventional lateral radiographies of the thoracic and lumbar spine were available. All patients were suffering from back pain of unknown etiology. the bone mineral density (BMD) of the midvertebral section of 3 lumbar vertebral bodies was determined by means of single-energy-(SE)-weighted QCT (85 kV). Spongiosa architecture and density profile analyses were made in the axial images. This was contrasted to BMD values ascertained in SE QCT. the mean BMD was compared to the number of fractures and the patients were divided into three groups: group I — no fracture; group II — one fracture; and group III 1 fracture Results: the mean BMD was: 134.3 (74.1–187.5) mg hydroxyapatite (HA)/ml in group I; 79.6 (58.6–114.3) mg HA/ml in group II; and 52.4 (13.1–79.1)mg HA/ml in group III. A significant deterioration in spongiosa structure was found with increasing demineralization: strongly rarefied patterns predominated in the fracture groups II and III Conclusion: sQCT provides a good risk assessment of the occurrence of vertebral body insufficiency fractures

Seasonal variations in wool growth and heat tolerance of sheep. I. Wool growth

1960 ◽  
Vol 11 (1) ◽  
pp. 75 ◽  
Author(s):  
M Wodzicka
Keyword(s):  
Body Weight ◽  
Day Treatment ◽  
The Other ◽  
Seasonal Rhythm ◽  
Group Iii ◽  
Wool Growth ◽  
Group I ◽  
The Mean ◽  
Group Ii ◽  
The Difference

The monthly wool growth of three groups of rams was studied at Beltsville, Maryland. Group I received natural daylight (at 38° 53' N.) and was shorn monthly. Group II had a 7:17 hours of daylight to hours of darkness rhythm and was shorn every 6 months, once in winter and once in summer. Group III received natural daylight and was likewise shorn every 6 months. The rams of all groups produced more wool in summer than in winter. This difference was significant (P<0.001). The mean body weight and food intake were both greater in the winter months, which indicated that the seasonal rhythm of wool growth was not a consequence of poorer feeding in winter. The rams which were shorn monthly (group I) grew considerably more wool than the other two groups, but the difference was not statistically significant. The short-day treatment of group II did not increase the annual wool production nor decrease the seasonal rhythm of wool growth. The balance of evidence from this and other experiments indicates that temperature rather than light controls the seasonal rhythm of wool growth.

SALIVARY CORTISOL LEVELS TO ESTABLISH A CAUSE AND EFFECT RELATIONSHIP IN PROGRESSION OF ORAL POTENTIALLY MALIGNANT DISORDERS

2021 ◽  
pp. 4-7
Author(s):  
Shefali Shefali ◽  
Saurabh Juneja ◽  
Anshi Jain ◽  
Devi Charan Shetty ◽  
Nikita Gulati
Keyword(s):  
Salivary Cortisol ◽  
Study Groups ◽  
Oral Potentially Malignant Disorders ◽  
Group Iii ◽  
Complex Interactions ◽  
Group I ◽  
Potentially Malignant Disorders ◽  
Potentially Malignant ◽  
Elisa Technique ◽  
Cortisol Levels

The progression and development of OPMDs is inuenced by a multitude of factors which include complex interactions between physiological, psychological, behavioral and social factors. The persistent activation of HPA axis through tobacco usage probably impairs immune response and has a role in progression of OPMDs. The quantication of salivary cortisol facilitates the assessment of nicotine impact on the oral mucosa and in the progression of OPMDs. This study was undertaken to estimate the salivary cortisol levels in the OPMDs with and without habits thereby signifying the importance of salivary cortisol in the causation of disease or as an effective biomarker for disease progression during the pathogenetic process of the disease. Salivary cortisol levels were estimated by ELISA technique in 29 cases of differing grades of oral potentially malignant disorders consisting of individuals with habit and lesions (Group I), 32 cases of individuals having habit without lesions (Group II) and 3 cases of individuals having lesion without habit (Group III) and 8 cases with neither habit nor lesions (Group IV). Salivary cortisol levels were correlated within the different study groups and were analyzed using SPSS (version 20). Salivary cortisol levels were raised in group I as compared to all other groups. Clarity in the present study has been achieved that salivary cortisol levels can be researched to the causation of the disease as an important step forward. This study could open up newer avenues in understanding the pathogenetic mechanisms in Oral Potentially malignant disorders.

Histological Studies on Ageing Changes in the Cornea of Indian Buffaloes (Bubalus bubalis)

2021 ◽  
Author(s):  
A. Prasanth Babu ◽  
P. Jagapathi Ramayya ◽  
Y. Nagamalleswari ◽  
Makkena Sreenu ◽  
K. Lakshmi Kavitha
Keyword(s):  
Corneal Epithelium ◽  
Corneal Stroma ◽  
Economic Loss ◽  
Progressive Increase ◽  
Group Iii ◽  
Age Related ◽  
Group I ◽  
Descemet's Membrane ◽  
Descemet’S Membrane ◽  
The Mean

Background: Affections of eye commonly encountered in all the species of animals. If these not treated in time, the vision may be hampered, this may impair the physical ability, utility and productivity of animals leading to economic loss to the animal owners. Corneal dystrophies like basement membrane dystrophy, stromal dystrophy, endothelial dystrophy, corneal erosions and corneal ulcerations etc., seen in the aged buffaloes. The current study was carried out to establish basic data and to provide authentic information to the clinicians on ageing changes in eyes of buffaloes.Methods: The study on age related changes in the cornea was conducted on 63 eye balls of locally available buffaloes of different breeds in and around Proddatur. These buffaloes were categorized into 3 groups based on their age i.e., group I (1-5 yrs), group II (6-10 yrs) and group III (11 yrs and above) buffaloes. The eyeballs were isolated and fixed with Davidson’s fluid. The paraffin sections of cornea were subjected for routine histological study.Result: The mean total thickness (µm) of cornea was increased from group I to III animals and it was 747.22±13.57, 853.33±11.05 and 897.22±8.06. Hence, The mean thickness (µm) of all five layers of cornea increased with advancement of age. Superficial corneal epithelial layer was made up of non keratinized stratified squamous epithelium with 6 to 7 layers at early age and 12-14 layers of cells in adult animals. The mean thickness (µm) of corneal epithelium in group I to III animals was 117.04±3.37, 122.59±2.23 and 133.71±3.55 respectively. Bowman’s membrane of cornea was measured 12.97±0.86, 17.22±0.55 and 18.71±0.68 in group I, II and III animals respectively. The mean thickness (µm) of corneal stroma in group I to III animals was 600.75±10.33, 672.22±10.46 and 690.00±5.32 respectively. This was mainly due to progressive increase in number of collagenous lamellae. The keratocytes became thin in old animals. Thickness of posterior band zone (PBZ) of Descemet’s membrane was increased with advancement of age. The mean thickness (µm) of Descemet’s membrane and endothelium together was in group I, II and III animals was 16.48±0.91, 41.29±2.25 and 54.82±1.44 respectively. The corneal endothelial cells were enlarged and increased in size in old buffaloes. The age related pigmentation was also noticed in epithelium and stroma of cornea in animals of group III. Density of sub basal nerve plexuses between the stroma and the corneal epithelium was not altered with advancement of age.

scholarly journals Assessment of intraocular pressure in chinchillas of different age groups using rebound tonometry

2016 ◽  
Vol 46 (8) ◽  
pp. 1466-1471 ◽  
Author(s):  
Flor Diana Yokoay Claros Chacaltana ◽  
João Antonio Tadeu Pigatto ◽  
Ione Terezinha Denardin
Keyword(s):  
Intraocular Pressure ◽  
Age Groups ◽  
Time Of Day ◽  
Age Group ◽  
Group Iii ◽  
Rebound Tonometer ◽  
Indirect Ophthalmoscopy ◽  
Group I ◽  
Schirmer Tear Test ◽  
The Mean

ABSTRACT: The aim of this research was to measure the intraocular pressure (IOP) of normal chinchilla eyes using the rebound tonometer. A further aim was to assess whether there were differences in the values of intraocular pressure in relation to animals age, gender and time of day. Thirty-six chinchillas were divided into three groups of 12 chinchillas each, by age: Group I (2-6-month-old), Group II (20 and 34 months) and Group III (37 and 135 months). Ophthalmic examination was performed previously by Schirmer tear test, slit lamp biomicroscopy, indirect ophthalmoscopy and fluorescein test in all chinchillas. Three measurements of intraocular pressure were assessed on the same day (7, 12 and 19h). Tonometry was performed on both eyes using the rebound tonometer after calibration in "p" mode. Statistical analysis was performed with SigmaPlot for Windows. The mean IOP for groups I, II and III were 2.47±0.581mmHg, 2.47±0.581mmHg and 2.51±0.531mmHg, respectively. No significant differences were reported between age and IOP and no significant differences were reported between the time of day and IOP. The IOP in chinchillas did not differ significantly between genders or ages of the animals, and did not change with time of day.

scholarly journals The prognostic role of inflammatory markers in COVID 19 patients – A retrospective analysis.

2021 ◽  
Author(s):  
Shivkumar Gopalakrishnan ◽  
sangeetha kandasamy ◽  
S.Malini ◽  
S.Peer Mohamed ◽  
k.velmurugan
Keyword(s):  
Inflammatory Markers ◽  
Severe Disease ◽  
Radiation Hazard ◽  
P Value ◽  
Binary Logistic Regression Analysis ◽  
Group Iii ◽  
Group I ◽  
Group Ii ◽  
D Dimer

Abstract Background. Approximately 5% of COVID-19 patients suffer near fatal disease. Clinical and radiologic features may predict severe disease albeit with limited specificity and radiation hazard. Laboratory biomarkers are eyed as simple, specific and point of care triage tools to optimize management decisions.This study aimed to study the role of inflammatory markers in prognosticating COVID-19 patients.Methodology. A hospital based retrospective study was conducted on COVID-19 adult inpatients classified into three groups as mild disease-recovered [Group I], severe disease-recovered [Group II] and dead [Group III]. Categorical outcomes were compared using Chi square test. Univariate binary logistic regression analysis was performed to test the association between the explanatory and outcome variables. Unadjusted OR along with 95% CI was calculated. The utility of lab parameters (Ferritin, LDH, D dimer, N/L ratio and PLT/L ratio) in predicting severity of COVID-19 was assessed by Receiver Operative Curve (ROC) analysis. P value < 0.05 was considered statistically significant.Results. The mean age was 49.32 +/- 17.1 years. Among study population, 378 were Group I, 66 Group II, and 56 Group III. Median levels of Ferritin among the 3 groups were 62ng/mL, 388.50 ng/mL and 1199.50 ng/mL. Median value of LDH were 95U/L, 720 and 982.50(p <0.001). D-dimer values of 3 groups were 23.20ng/mL, 104.30 ng/mL and 197.10 ng/mL (p <0.001). CRP done qualitatively was positive in 2 (0.53%), 30 (45.45%) and 53 (94.64%) of patients. The odds of patients suffering severe COVID-19 rose with rising values of ferritin, LDH and D-dimer [unadjusted OR 1.007, 1.004 &1.020]Conclusion. One time measurement of serum ferritin, LDH, D-dimer and CRP is promising to predict outcomes for COVID 19 inpatients. Single qualitative CRP was equally good but more cost effective than quantitative CRP. The most specific combination was NLR, Lymphocyte percentage and D-dimer levels done between 7th – 10th day of symptoms.

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