scholarly journals Functional genioplasty in growing patients

2014 ◽  
Vol 85 (3) ◽  
pp. 360-373 ◽  
Author(s):  
Sylvain Chamberland ◽  
William R. Proffit ◽  
Pier-Eric Chamberland
Keyword(s):  
Orthodontic Treatment ◽  
Age Groups ◽  
Control Group ◽  
Bone Apposition ◽  
Younger Patients ◽  
Mandibular Growth ◽  
Group 3 ◽  
Group 2 ◽  
Inferior Border ◽  
Group 1

ABSTRACT Objective:  To evaluate the role of age as a moderator of bone regeneration patterns and symphysis remodeling after genioplasty. Method:  Fifty-four patients who underwent genioplasty at the end of their orthodontic treatment were divided into three age groups: younger than 15 years at the time of surgery (group 1), 15 to 19 years (group 2), and 20 years or older (group 3). Twenty-three patients who did not accept genioplasty and had a follow-up radiograph 2 years after the end of their orthodontic treatment were used as a control group. Patients were evaluated at three time points: immediate preoperative (T1), immediate postoperative (T2,) and 2 years postsurgery (T3). Results:  The mean genial advancement at surgery was similar for the three age groups, but the extent of remodeling around the repositioned chin was greater in group 1, less in group 2, and still less in group 3. Symphysis thickness increased significantly during the 2-year postsurgery interval for the three groups, and this increase was significantly greater in group 1 than in group 3. Remodeling above and behind the repositioned chin also was greater in the younger patients. This was related to greater vertical growth of the dentoalveolar process in the younger patients. There was no evidence of a deleterious effect on mandibular growth. Conclusion:  The outcomes of forward-upward genioplasty include increased symphysis thickness, bone apposition above B point, and remodeling at the inferior border. When indications for this type of genioplasty are recognized, early surgical correction (before age 15) produces a better outcome in terms of bone remodeling. (Angle Orthod. 2015;85:360–373.)

scholarly journals A symmetric hypocorrection of myopia by FemtoLASIK in patients with presbyopia

2018 ◽  
Vol 11 (4) ◽  
pp. 43-48 ◽  
Author(s):  
N. V. Khodzhabekyan ◽  
A. T. Khandzhyan ◽  
E. P. Tarutta
Keyword(s):  
Age Groups ◽  
Control Group ◽  
Age Group ◽  
Corneal Hydration ◽  
Flap Thickness ◽  
Group 3 ◽  
Group 2 ◽  
Possible Cause ◽  
Group 1

Purpose: to evaluate the results of symmetric binocular hypocorrection of myopia with FemtoLasik surgery in patients with presbyopia of various age groups.Material and methods. 33 patients (66 eyes) with myopic refraction, aged 36 to 50, were operated by FemtoLasik. The intended Femto Flap thickness was 100 μm. The patients were divided into three groups depending on age; group 1 included 16 patients (32 eyes) aged 39–44, group 2 had 12 patients (24 eyes) aged 45–50, and group 3 (controls) was composed of 5 patients (10 eyes) of pre-presbyopic age (36–38 years).Results. The symmetric binocular hypocorrection proved efficient in 35 % of cases in the group 1 and 50 % of cases in group 2. In the control group the intended and obtained values coincided in all 100 % of cases.Conclusion. A possible cause of the discrepancy between the intended and the obtained hypocorrection effect may be a reduced corneal hydration of patients older than 39 years.

scholarly journals Efficacy of Ceftazidime and Cefepime in the Management of COVID-19 Patients: Single Center Report from Egypt

Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1278
Author(s):  
Ragaey A. Eid ◽  
Marwa O. Elgendy ◽  
Ahmed O. El-Gendy ◽  
Sara O. Elgendy ◽  
Lassaad Belbahri ◽  
...  
Keyword(s):  
Recovery Time ◽  
Age Groups ◽  
Treatment Protocol ◽  
Control Group ◽  
Management Protocol ◽  
Ic50 Values ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

The purpose of this study was to explore the value of using cefepime and ceftazidime in treating patients with COVID-19. A total of 370 (162 males) patients, with RT-PCR-confirmed cases of COVID-19, were included in the study. Out of them, 260 patients were treated with cefepime or ceftazidime, with the addition of steroids to the treatment. Patients were divided into three groups: Group 1: patients treated with cefepime (124 patients); Group 2: patients treated with ceftazidime (136 patients); Group 3 (control group): patients treated according to the WHO guidelines and the Egyptian COVID-19 management protocol (110 patients)/ Each group was classified into three age groups: 18–30, 31–60, and >60 years. The dose of either cefepime or ceftazidime was 1000 mg twice daily for five days. Eight milligrams of dexamethasone were used as the steroidal drug. Careful follow-ups for the patients were carried out. In vitro and in silico Mpro enzyme assays were performed to investigate the antiviral potential of both antibiotics. The mean recovery time for Group 1 was 12 days, for Group 2 was 13 days, and for Group 3 (control) was 19 days. No deaths were recorded, and all patients were recovered without any complications. For Group 1, the recovery time was 10, 12, and 16 days for the age groups 18–30, 30–60, and >60 years, respectively. For Group 2, the recovery time was 11, 13, and 15 days for the age groups 18–30, 30–60, and >60 years, respectively. For Group 3 (control), the recovery time was 15, 16, and 17 days for the age groups 18–30, 30–60, and >60 years, respectively. Both ceftazidime and cefepime showed very good inhibitory activity towards SARS CoV-2′s Mpro, with IC50 values of 1.81 µM and 8.53 µM, respectively. In conclusion, ceftazidime and cefepime are efficient for the management of moderate and severe cases of COVID-19 due to their potential anti-SARS CoV-2 activity and low side effects, and, hence, the currently used complex multidrug treatment protocol can be replaced by the simpler one proposed in this study.

Optimal Propofol Plasma Concentration during Upper Gastrointestinal Endoscopy in Young, Middle-aged, and Elderly Patients

2000 ◽  
Vol 93 (3) ◽  
pp. 662-669 ◽  
Author(s):  
Tomiei Kazama ◽  
Ken Takeuchi ◽  
Kazuyuki Ikeda ◽  
Takehiko Ikeda ◽  
Mutsuhito Kikura ◽  
...  
Keyword(s):  
Plasma Concentrations ◽  
Age Groups ◽  
Young Patients ◽  
Upper Gastrointestinal Endoscopy ◽  
Hemodynamic Responses ◽  
Verbal Command ◽  
Group 3 ◽  
Group 2 ◽  
Somatic Response ◽  
Group 1

Background Suitable propofol plasma concentrations during gastroscopy have not been determined for suppressing somatic and hemodynamic responses in different age groups. Methods Propofol sedation at target plasma concentrations from 0.5 to 4.0 microgram/ml were performed randomly in three groups of patients (23 per group) who were undergoing elective outpatient gastroscopy: ages 17-49 yr (group 1), 50-69 yr (group 2), and 70-89 yr (group 3). Plasma propofol concentration in which 50% of patients do not respond to these different stimuli were determined by logistic regression: verbal command (Cp50ls), somatic response to gastroscopy (Cp50endo), and gag response to gastroscopy (Cp50gag). Hemodynamic responses were also investigated in the different age groups. Results Cp50ls concentrations were 2.23 microgram/ml (group 1), 1.75 microgram/ml (group 2), and 1.40 microgram/ml (group 3). The Cp50endo values in groups 1 and 2 were 2.87 and 2.34 microgram/ml, respectively, which were significantly higher than their respective Cp50ls values. Cp50endo value in group 3 was 1.64 microgram/ml, which was close to its Cp50ls value. Because of a high degree of interpatient variability, Cp50gag could not be defined. Systolic blood pressure response decreased with increasing propofol concentrations. Conclusions The authors determined the propofol concentration necessary for gastroscopy and showed that increasing age reduces it. Propofol concentration that suppresses somatic response induces loss of consciousness in almost all young patients.

Postoperative Morphine Use and Hyperalgesia Are Reduced by Preoperative but Not Intraoperative Epidural Analgesia

2003 ◽  
Vol 98 (6) ◽  
pp. 1449-1460 ◽  
Author(s):  
Joel Katz ◽  
Lorenzo Cohen ◽  
Roger Schmid ◽  
Vincent W.S. Chan ◽  
Adarose Wowk
Keyword(s):  
Morphine Consumption ◽  
Gynecologic Surgery ◽  
Control Group ◽  
Epidural Administration ◽  
Blinded Manner ◽  
Group 3 ◽  
Group 2 ◽  
Double Blinded ◽  
Postoperative Morphine ◽  
Group 1

Background The aim of this study was to evaluate the postoperative morphine-sparing effects and reduction in pain and secondary mechanical hyperalgesia after preincisional or postincisional epidural administration of a local anesthetic and an opioid compared with a sham epidural control. Methods Patients undergoing major gynecologic surgery by laparotomy were randomly assigned to three groups and studied in a double-blinded manner. Group 1 received epidural lidocaine and fentanyl before incision and epidural saline 40 min after incision. Group 2 received epidural saline before incision and epidural lidocaine and fentanyl 40 min after incision. Group 3 received a sham epidural control (with saline injected into a catheter taped to the back) before and 40 min after incision. All patients underwent surgery with general anesthesia. Results One hundred forty-one patients completed the study (group 1, n = 45; group 2, n = 49; group 3, n = 47). Cumulative patient-controlled analgesia morphine consumption at 48 h was significantly lower (P = 0.04) in group 1 (89.8 +/- 43.3 mg) than group 3 (112.5 +/- 71.5 mg) but not group 2 (95.4 +/- 60.2 mg), although the hourly rate of morphine consumption between 24 and 48 h after surgery was significantly lower (P < 0.0009) in group 1 (1.25 +/- 0.02 mg/h) than group 2 (1.41 +/- 0.02 mg/h). Twenty-four hours after surgery, the visual analog scale pain score on movement was significantly less intense (P = 0.005) in group 1 (4.9 +/- 2.2 cm) than group 3 (6.0 +/- 2.6 cm) but not group 2 (5.3 +/- 2.5 cm), and the von Frey pain threshold near the wound was significantly higher (P = 0.03) in group 1 (6.4 +/- 0.6 log mg) than in group 3 (6.1 +/- 0.8 log mg) but not group 2 (6.2 +/- 0.7 log mg). Conclusions Preincisional administration of epidural lidocaine and fentanyl was associated with a significantly lower rate of morphine use, lower cumulative morphine consumption, and reduced hyperalgesia compared with a sham epidural condition. These results highlight the importance of including a standard treatment control group to avoid the problems of interpretation that arise when two-group studies of preemptive analgesia (preincisional vs. postsurgery) fail to find the anticipated effects.

scholarly journals Antioxidant Effect of MnTE-2-PyP on Lung in Asthma Mice Model

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Lyudmil Terziev ◽  
Violeta Dancheva ◽  
Veneta Shopova ◽  
Galya Stavreva
Keyword(s):  
Superoxide Dismutase ◽  
Glutathione Peroxidase ◽  
Control Group ◽  
Mice Model ◽  
Antioxidant Defence ◽  
Group 4 ◽  
Antioxidant Defence System ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Aim. To investigate the effects of MnTE-2-PyP on some markers of antioxidant defence system in asthma mice model.Material and Methods. The animals were divided into four groups: group 1, controls; group 2, injected with ovalbumin, group 3, treated with MnTE-2-PyP, and group 4, treated with ovalbumin and MnTE-2-PyP. The activities of superoxide dismutase, catalase, glutathione peroxidase and nonprotein sulfhydryl groups content (NPSH) were determined in lung homogenate.Results. The activities of superoxide dismutase and catalase in group 2 decreased significantly as compared to control group. The decrease of the same enzymes in group 4 was lower and significant as compared to group 2. Changes in the glutathione peroxidase activity showed a similar dynamics. The NPSH groups content decreased in group 2. In group 4 this decrease was relatively lower as compared to group 2.Conclusions. The application of MnTE-2-PyP mitigated the effects of oxidative stress in asthma mice model.

scholarly journals Pengaruh Monoklonal Antibodi Bovine Zona Pelusida 3 (bZP3) terhadap Diameter dan Atresia Folikel Ovarium Mencit (Mus musculus)

2018 ◽  
Vol 24 (1) ◽  
pp. 37
Author(s):  
Annisa Trissatharra ◽  
Sri Ratna Dwiningsih ◽  
Ratna Sofaria Munir
Keyword(s):  
Mus Musculus ◽  
Ovarian Follicles ◽  
Observation Time ◽  
Control Group ◽  
Control Group Design ◽  
Treatment Groups ◽  
Group 4 ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Objectives: To identify the effect of monoclonal antibody bZP3 at ovarian follicles that undergo atresia and diameter of various ovarian follicles.Materials and Methods: This is a true experimental research with post only control group design. Samples were 36 female mices (Mus musculus) which is divided into 6 groups, there are 3 control groups (group 1, 2, and 3) injected by Phospatase Buffer Saline (PBS) 50µl and 3 treatment groups (group 4, 5, and 6) injected by Mab bZP3 50µl. Group 1 and 4 terminated at 5th day, group 2 and 5 terminated at 10th day, and group 3 and 6 terminated at 20th day. Evaluation of atretic ovarian follicles and diameter of ovarian follicles performed by hematoxylin eosin (HE) and the data processed by parametric statistic.Results: There are no significant in different among groups in the aspect of atretic follicles and diameter of folicles (p>0.05), but descriptively, number of follicles undergo atresia of the follicle primary, secondary, and tertiary treatment group was higher than the control group, except on the 20th day of observation time.Conclusion: administration of Mab bZP3 had no effect to amount of atretic follicles and diameter of folicles during observation time.

scholarly journals Zingerone Ameliorates Hepatotoxicity

2020 ◽  
Vol 11 (1) ◽  
pp. 280-284 ◽  
Author(s):  
Julietpoornamathy J ◽  
Parameswari C.S.
Keyword(s):  
The Body ◽  
Control Group ◽  
Medical Sciences ◽  
Toxic Compounds ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Group 2 ◽  
Insight Into ◽  
Group 1

In medical sciences, toxicity is an area wherein extensive studies have been carried to improve the diseases as well as to prevent. So, there is a high requirement for novel and improved alternative therapeutic strategies to manage diseases. The liver is the largest gland in the body, which executes several important mechanisms; it stores minerals and vitamins and releases them in periods of need. The main aim of this study was to give a closer insight into potent non- toxic compounds that is capable of modifying the responses. Animals were divided into five equal groups viz control (Group 1), administered with food and water ad libitum, (Group 2) administered with olive oil, (Group 3) administered with zingerone, (Group 4) administered with concanavalin A, (Group 5) administered with cyclosporine A followed by zingerone. Our results revealed significant changes in liver marker enzymes and liver histology of zingerone treated rats when compared to control rats.  A corollary, zingerone has no toxic effect on hepatocytes and was found to be safe at a dose of 10mg/kg b wt and also ameliorates hepatotoxicity.

scholarly journals Comparative parasitological and electron microscopic studies on the effects of Nitazoxanide and Praziquantel in Schistosoma mansoni-infected mice

2016 ◽  
Vol 4 (2) ◽  
pp. 228
Author(s):  
Hend A. El-Taweel ◽  
Mona H. El-Sayad ◽  
Sahar A. Abu Helw ◽  
Mohammad A. Al-Kazzaz
Keyword(s):  
Schistosoma Mansoni ◽  
Control Group ◽  
Electron Microscopic ◽  
Male And Female ◽  
Scanning Electron Microscopic ◽  
Antischistosomal Activity ◽  
Microscopic Studies ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

This study was designed to evaluate antischistosomal activity of Nitazoxanide (NTZ) in Schistosoma mansoni-infected mice compared to Praziquantel (PZQ). Fifty four infected mice were recruited into 3 groups, each of 18 mice. Group 1 was infected non-treated control. Group 2 was infected and then treated with PZQ 500 mg for two days, and group 3 was infected and treated with NTZ 100 mg/kg for seven days. Efficacy of drugs was assessed by Parasitological, and scanning electron microscopic studies. PZQ reduced (4.9%, 22.5% and 50.7%) of faecal eggs, (22%, 22.6% and 55.1%) of intestinal eggs, (20.4%, 44.3% and 46.7%) of hepatic egg counts and (27%, 45.1% and 64.9%) of total worm load whereas, NTZ reduced (4.9%, 22.5% and 50.7%),of faecal eggs, (22%, 22.6% and 55.1%) of intestinal eggs ,(20.4%, 44.3% and 46.7%) of hepatic egg counts and (27%, 45.1% and 64.9%) of total worm load at 1, 2 and 4 WPT, respectively. The percentages of dead eggs were more than 80% after PZQ treatment and only 30% after NTZ at 4 WPT. PZQ showed extensive tegumental damages in male and female worms more than NTZ at 2 WPT. Our findings concluded that Nitazoxanide showed weaker antischistosomal activity in animal models than praziquantel.

Double activation improves rabbit freeze–thawed oocytes developmental potential

Zygote ◽  
2009 ◽  
Vol 18 (1) ◽  
pp. 27-32 ◽  
Author(s):  
J. Wang ◽  
L. Cong ◽  
Z.G. Zhang ◽  
Y.X. Cao ◽  
Z.L. Wei ◽  
...  
Keyword(s):  
Control Group ◽  
Strontium Chloride ◽  
Random Group ◽  
Developmental Potential ◽  
Group 4 ◽  
Group 3 ◽  
Group 2 ◽  
Double Activation ◽  
Potential Methods ◽  
Group 1

SummaryObjective: To investigate the effects of various activation methods on freeze–thawed rabbit oocytes developmental potential. Methods: Rabbit oocytes were vitrified by cryoleafs and cryoprotected with ethylene glycol and propanediol. After thawing, the oocytes were fertilized by intracytoplasmic sperm injection (ICSI). Surviving oocytes after ICSI were divided into five groups at random. Group 1: Oocytes (n = 30) activated 1 h after ICSI by calcium ionomycin (I0634); Group 2: Oocytes (n = 26) activated by strontium chloride an hour after ICSI; Group 3: Oocytes (n = 33) activated by I0634 twice; Group 4: Oocytes (n = 28) were activated by strontium chloride twice; Control Group: Inactivated oocytes (n = 39). Blastocysts derived from each group were transplanted to recipient rabbits. Results: Rates of fertilization, cleavage and blastocyst formation of Group 3 were higher than those of Group 1 and Group 2 (81.8% vs 33.3% vs 53.8%, 54.5% vs 16.7% vs 26.9%, p < 0.05; 15.2% vs 3.3% vs 7.7%, p > 0.05). The rabbit transplanted with embryos derived from Group 3 became pregnant. Embryos derived from double activation could implant into endometrium. Conclusion: Double activation may increase freeze–thawed oocytes developmental potential. After activation, oocytes cleavage velocity may be faster than that of oocytes without activation.

Investigation of TAp63 gene Expression and Follicle Count Using Melatonin in Cisplatin-induced Ovarian Toxicity

2020 ◽  
Author(s):  
Hacı Öztürk Şahin ◽  
Mehmet Nuri Duran ◽  
Fatma Sılan ◽  
Ece Sılan ◽  
Duygu Sıddıkoglu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Female Rats ◽  
Histological Evaluation ◽  
Saline Control ◽  
Control Group ◽  
Ovarian Toxicity ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract Background: Premature ovarian failure is among the most important side effects of chemotherapy during reproductive period. Preserving ovarian function is gradually gaining importance during oncologic treatment. The present study aims to investigate the potential of melatonin to protect from cisplatin-induced ovarian toxicity in rats. Twenty nine female rats were divided to three groups: Saline control group (Group 1), cisplatin group (Group 2), and cisplatin+melatonin group (Group 3). While the rats in Groups 2 and 3 were administered 5 mg/kg single dose of cisplatin via intra-peritoneal (IP) route, the rats in Group 3 were started on melatonin (20 mg/kg IP) before cisplatin administration and continued during 3 consecutive days. Ovaries were removed one week after cisplatin administration in all groups. Blood samples were obtained before the rats were decapited. Histological evaluation, follicle count, and classification were performed. TAp63 mRNA expression was evaluated using mRNA extraction and real-time polymerase chain reaction (PCR) method. Serum estradiol (E2) and anti-mullerian hormone (AMH) values were measured with enzyme immune-assay technology. Results: While primordial follicles were seen to decrease in Group 2 as compared to Group 1 (p:0.023), primordial follicle count was observed to be preserved significantly in melatonin group as compared to Group 2 (p:0.047). Moreover, cisplatin-induced histo-pathological morphology was preserved in favor of normal histology in melatonin group. A significant difference was not observed between groups with regard to mean serum AMH and E2 values (p:0.102 and p:0.411, respectively). While TAp63 gene expression significantly increased in Group 2 as compared to control group (p:0.001), we did not detect a statistically significant difference in cisplatin+melatonin group, although gene expression decreased (p:0.34). Conclusion: We conclude that concurrent administration of melatonin and cisplatin may protect from ovarian damage.

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