Bio-effects of 5th generation electromagnetic waves on organs of human beings / 《全球健康杂志（英文）》

Objectives:The uses of devices of electromagnetic waves(EMWs)are increasing day by day.Similarly,the gen-eration of the waves is increasing.The frequency spectrum of the generation of waves is also increased.In this manuscript,an analysis of the high frequency EMWs has been made by the electric fields generated due to the exposure of 5th generation(5 G)of mobile phones. Methods:Due to the emission of waves from the towers,the electric field is generated around the transmission tower of mobile phones.The electric fields are computed by the power of the transmission tower.The electric fields across the biological tissues/cells are also computed when the EMWs penetrate inside the body.The electric fields are made across the organs of different depths inside the body. Results:The induced electric fields inside the organs of the human beings are responsible for the absorption of energy from high frequency EMWs.The absorbed amount of energy from high frequency waves may become the cause of harmful effects on the life of organs of human beings. Conclusion:In this manuscript,after analysis of the computed electric fields inside the organs of human beings,it is concluded that the EMWs of 5 G spectrum of mobile phone towers may more harmful for the life of organs as 4th generation(4 G)spectrum of mobile phone waves.The energy absorption by the 4 G spectrum is lower than 5 G spectrum due to the range of frequency of waves.The effects on the pancreas,retina,skin,intestine,spleen,stomach and uterus are more than low water content organs like nails,bone,teeth etc.

Assessment of prophylactic effect of Senna auriculata (L.) Roxb. leaves on alcohol-induced pancreatitis in rat model.

Aqueous leaf extract of Senna auriculata (L.) Roxb. syn. Cassia auriculata (SLEx) is known to possess potential antidiabetic and antioxidant properties. Based on the known correlation between exocrine pancreatic function and endocrine secretary capacity, here, we studied the prophylactic effect of the SLEx on alcohol induced pancreatitis in rats. To induce chronic pancreatitis, the rats were fed with unsaturated fat i.e. corn oil (2.5 mL/kg) along with high dose of ethanol (10.2 g/kg) for 4 wk, and was increased 0.6 g/kg after every 2 days for 1 wk and then 0.6 g/kg after every 4 days for a period of 4 wk. SLEx was orally administered to rats at dose of 400 mg/kg/day for 4 wk. At the end of 4th wk, pancreatic enzymes i.e., α-amylase, lipase, serum and pancreatic MDA levels were estimated. Pancreatic histopathological studies were also performed. The SLEx significantly reduced the serum levels of α-amylase and lipase along with significant suppression in serum and pancreatic tissue lipid peroxidation. Histomorphological studies did not show any fatty vacoules in acinar cells of SLEx-treated rats. However, vacoulation was seen in acini of pathogenic control rats. With the results, we conclude that Senna auriculata aqueous leaf extract has potential to reduce the ethanol-induced pathogenecity, and it possesses prophylactic effect on alcohol-induced pancreatitis. However, a long term trial is needed to ascertain its therapeutic potential for pancreatitis.

Evaluation of dentine hypersensitivity in adult population with chronic periodontitis visiting dental hospital in Chandigarh.

Background: Periodontal attachment loss could be an earlier indicator or a possible risk factor of dentine hypersensitivity (DH). Thus, there is a need for diagnosing this condition both by questionnaire and by clinical examination before rendering both home care and in‑office treatment modalities. Aims: To investigate the relationship between various demographic factors and DH and to detect the percentage of patients using desensitizing agents. Materials and Methods: In this cross‑sectional study, 2051 patients were evaluated till the required sample size of 1000 patients was achieved who were evaluated both by questionnaire and clinical test. Association between DH clinical attachment level and apparent recession was established. Results: This study found that the prevalence of dentine hypersensitivity in chronic periodontitis patients was 37.2% according to questionnaire and 47.8% according to the results of clinical test. Various demographic factors were found to affect dentine hypersensitivity such as age, gender, education, diet, and locality. Conclusion: The prevalence of dentine hypersensitivity in chronic periodontitis patients was 37.2% according to questionnaire and 47.8% according to the results of clinical test. Periodontal attachment loss could be an earlier indicator or a possible risk factor of DH. Only 14.36% of the patients with sensitive teeth used desensitizing paste. This could be due to the fact that either the patients did not consider the condition bad enough to warrant treatment or it was not being diagnosed.

Antiaging, antistress and ROS scavenging activity of crude extract of Ocimum sanctum (L.) in Caenorhabditis elegans (Maupas, 1900).

Since aging is the most important risk factor for variety of diseases, the discovery of a wide range of chemical modulators of aging in model organisms encourages new strategies for targeting age associated diseases. Simple genetic manipulation leads to long-lived and healthy animals, so any compound which could have similar effect would prove a boon to mankind. In the present study, effect of different pharmacological doses (1.0, 0.1, 0.01 and 0.001 mg/mL) of O. sanctum crude extract were used to determine their impact on life span, thermotolerance and ROS scavenging activities in C. elegans. The results revealed that 1 mg/mL of O. sanctum extract significantly extended the life span of C. elegans. The extract also proved to be a strong free radical scavenger and increased resistance against thermal stress. It is also suggested that the protective and life span extending action of the crude extract is not only due to its antioxidant capacity but may also be mediated by modulation of some signaling pathways. Thus, in addition to all the known medicinal property of Ocimum, it is capable of increasing stress tolerance and life span in C. elegans.

Periodontal-Restorative Interactions: A Review.

The interrelationship of restorative dentistry and periodontics is a dynamic one. We have reviewed the various guidelines for performing periodontally compatible restorative dentistry. Using these basic guidelines, restorative care can be used to directly aid periodontal treatment by restoring an esthetically pleasing, comfortable and stable dentition. This article addresses the interactions between periodontal tissues and restorative procedures.

Cryosurgery in the treatment of oro-facial lesions.

Cryosurgery is a therapeutical method that uses freezing to obtain a tissue inflammatory and/or a destructive response. It has been successfully used for many cutaneous conditions. Its use is increasing for several conditions in the oral cavity. The oral mucosa, because of its characteristics of humidity and smoothness, is an ideal site for this technique. It shows a very good esthetic result and it may be either the first choice or an alternative option to conventional surgery. This article strives to review the modus operandi of cryosurgical instruments, the various indications, limitations and advantages of cryosurgery in the treatment of oral lesions.

Ergonomic applications to dental practice.

The term "work-related musculoskeletal disorders (WMSDs)," refers to musculoskeletal disorders to which the work environment contributes significantly, or to musculoskeletal disorders that are made worse or longer lasting by work conditions or workplace risk factors. In recent years, there has been an increase in reporting WMSDs for dental persons. Risk factors of WMSDs with specific reference to dentistry include - stress, poor flexibility, improper positioning, infrequent breaks, repetitive movements, weak postural muscles, prolonged awkward postures and improper adjustment of equipment. Ergonomics is the science of designing jobs, equipment and workplaces to fit workers. Proper ergonomic design is necessary to prevent repetitive strain injuries, which can develop over time and can lead to long-term disability. In this article, 20 strategies to prevent WMSDs in the dental operatory are discussed.

Protective effect of Morus rubra L. leaf extract on diet-induced atherosclerosis in diabetic rats.

The antiatherosclerotic effect of aqueous leaves extract of Morus rubra was studied in streptozotocin-induced diabetic rats fed with atherosclerotic (Ath) diet [1.5 ml olive oil containing 8 mg (3, 20,000 IU) vitamin D2 and 40 mg cholesterol] for 5 consecutive days. A short-term toxicity assessment was also conducted in healthy rats to examine toxic effects of the extract. Oral administration of extract to diabetic rats (100, 200 and 400 mg/kg body weight per day for a period of 30 days) produced significant (p<0.001) fall in fasting blood glucose (FBG) in a dose-dependent manner. Treatment with the extract (400 mg/kg) showed significant (p<0.001) improvement in body weight and serum lipid profile i.e., total cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol and VLDL-cholesterol, when compared with diabetic control. Endothelial dysfunction parameters (sVCAM-1, Fibrinogen, total NO levels and oxidized LDL), apolipoprotein A and apolipoprotein B were significantly (p<0.001) reversed to near normal, following treatment with the extract. Thus, our study shows that aqueous leaf extract of Morus rubra (400 mg/kg) significantly improves the homeostasis of glucose and fat and possesses significant anti-atherosclerotic activity.

Protective role of Cassia auriculata leaf extract on hyperglycemia-induced oxidative stress and its safety evaluation.

Cassia auriculata L. (Caesalpiniaceae) is widely used from the ancient period to treat diabetes mellitus. In the present study, the antioxidant activity of C. auriculata aqueous leaf extract (CLEt) was evaluated in streptozotocin-induced mild diabetic (MD) and severe diabetic (SD) rats. A short-term toxicity assessment was also conducted in healthy rats to examine toxic effects of the extract. Oral administration of CLEt to MD and SD rats (100, 200 and 400 mg/kg body weight per day for a period of 21 days) produced significant fall in fasting blood glucose (FBG) in a dose-dependent manner. Treatment with the extract (400 mg/kg) showed significant reduction in serum levels of thiobarbituric acid reactive substances (TBARS) and oxidized low-density lipoprotein (OxLDL) in both MD and SD rats. The antioxidant defense system was also found to be improved in CLEt-treated (400 mg/kg) MD and SD rats, as revealed by significant increase in activities of erythrocyte’s antioxidant enzymes i.e. superoxide dismutase (SOD) and catalase (CAT) with a concomitant elevation in erythrocyte’s reduced glutathione (GSH) content. Moreover, there were no toxic signs in rats treated with high doses of the extract (1000 and 2000 mg/kg body weight per day for 21 days). Blood glucose, hepatic and renal function parameters in these rats were found within normal limits. Phytochemical screening of CLEt revealed the presence of alkaloids, flavonoids, saponins, tannins and cardiac glycosides with antihyperglycemic and antioxidant properties. This study suggests that CLEt possesses potent antioxidant activity along with antihyperglycemic potential, hence protective against diabetic complications.

Prevalence of congenital heart disease, Kanpur, India.

Our aim was to study the prevalence, age-wise distribution, and clinical spectrum of congenital heart disease (CHD) at a multi-speciality corporate hospital in North India. A retrospective analysis of records of 10,641 patients over a five-and-a-half year period was done. Clinical examination, echocardiography and color doppler were used as diagnostic tools. A prevalence of 26.4 per 1000 patients was observed. VSD (ventricular septal defect) was the commonest lesion (21.3%), followed by ASD (atrial septal defect) in 18.9% and PDA (patent ductus arteriosus) in 14. 6%. Tetralogy of Fallot was the commonest cyanotic heart disease (4.6%). Maximum number of children with heart disease (82.9%) were diagnosed between 0-3 years of age.