جستجوی مقالات مرتبط با کلیدواژه « milk proteins » در نشریات گروه « پزشکی »

 Limited evidence is available on the effect of milk as a mouthwash on treating dentin hypersensitivity. The present study aimed to compare the effect of milk as a mouthwash with one anti-hypersensitivity mouthwash in decreasing dentin hypersensitivity after non-surgical periodontal treatment.

Patients with generalized moderate-to-severe chronic periodontitis were selected randomly in the present study and underwent scaling and root planing (SRP). Seventy patients with severe dentin hypersensitivity after two days were assigned to two groups. In group A, the patients were asked to use milk as a mouthwash, and in group B, the patients were asked to use anti-hypersensitiv ity Misswake mouthwash. The patients’ hypersensitivity was measured during follow-up visits. The independent t-test was used to compare denim hypersensitivity between the two groups. Statistical significance was set at P<0.05.

  The results showed a significant decrease in dentin hypersensitivity in both groups on days 15 and 30. In the milk group, 11 and 29 patients fully recovered from dentin hypersensitivity on days 15 and 30, respectively. However, in the anti-hypersensitivity mouthwash group, 8 and 27 patients fully recovered from dentin hypersensitivity on days 15 and 30, respectively. Therefore, more patients benefited from the anti-hypersensitivity effects of milk as a mouthwash. However, the differences were not significant during the whole treatment sessions.

  Using milk as an inexpensive and available mouthwash can decrease dentin hypersensi tivity after SRP.

 Antimicrobial peptides have attracted significant attention in recent decades because of their properties, such as rapid bactericidal effects, having a wide spectrum of activity, and a rare development of drug resistance. The purpose of this study was to examine the antibacterial activity of a peptide derived from the lactoferrin isolated from camel milk against Staphylococcus aureus, Pseudomonas aeruginosa, and Acinetobacter baumannii.

In the present study, by means of bioinformatics, an antibacterial peptide was potentially identified as candidates in lactoferrin of camel milk, and an appropriate peptide was selected based on defined criteria. The Pepsin-Camel-Lac1 peptide was synthesized. The methyl thiazolyl diphenyl-tetrazolium bromide assay was conducted to examine the toxicity of Pepsin-Camel-Lac1 against a cell line. Three pathogenic bacteria, namely S. aureus, P. aeruginosa, and A. baumannii were analyzed to assess the antibacterial activity of Pepsin-Camel-Lac1 peptide.

The results showed that the newly-identified peptide had no toxicity against the cell line. The minimum inhibitory concentration values of Pepsin-Camel-Lac1 against S. aureus, P. aeruginosa, and A. baumannii were 31.25 µg/mL, 31.25 µg/mL, and 62.5 µg/mL, respectively.

It seems that the growth of S. aureus, P. aeruginosa, and A. baumannii was not affected by Pepsin-Camel-Lac1 treatment in the bacterial culture medium.

To evaluate colostrum total protein differences between left and right breasts and between mothers of boy and girl infants. A cross sectional study for delivery was carried out on 30 boy-delivered and 30 girl-delivered mothers aged 16 to 36 years, conducted at the Izadi and Al-Zahra Hospitals in Qom city, Iran. Colostrum was collected from both breasts by manual milking within the first day of delivery. Total protein concentration was assessed by Biuret method using affiliated kits. The data was analyzed through the student’s t-test using the SPSS program. Colostrum total protein was significantly higher in the left (166.9±13.1 mg/ml) and right (165.3±14.7 mg/ml) breasts of the boy-delivered mothers than in the left 144.8±4.1 mg/ ml) and right (122.7.3±7.4 mg/ml) breasts of the girl-delivered ones. It was also significantly higher in the left breast than the right breast in the girl-delivered mothers. However, there was no significant difference between the two breast colostrum total protein levels in the boydelivered mothers. The results of the present study suggest that total protein of colostrum in the boydelivered mothers is greater than the girl-delivered mothers.

The number of cigarette smokers in people of all ages and the resulting second hand smokers are increasing worldwide. Smoking at home, work or in public places puts others at risk of exposure to second hand smoke.. To study the effects of second-hand smoking on breast milk proteins..Patients and This cohort study was conducted on 45 mothers exposed to second-hand smoke (cases) and 45 non-exposed post-partum mothers (controls) who attended health care centers. Milk samples were collected twice, (5-7 days and 4 months after delivery). Exposure was assessed through questionnaires which measured total levels of milk protein and albumin, and milk cotinine, a major metabolite of nicotine.. Cotinine levels in the breast milk of mothers in the exposed group were significantly higher than non-exposed group at baseline and 4 months after delivery (P = 0.001). Milk protein profiles in the non-exposed group were significantly higher 5-7 days after delivery in the non-exposed group, but the albumin profile was not significantly different at 4 months post-partum (P = 0.004).. Second-hand smoke affects the levels of breast milk proteins that are essential for infant growth..