Thiếu máu và một số yếu tố liên quan ở phụ nữ 15 – 35 tuổi tại một số huyện của tỉnh Sơn La, năm 2018

2021 ◽  
Vol 31 (9 Phụ bản) ◽  
pp. 266-273
Author(s):  
Nguyễn Song Tú ◽  
Hoàng Văn Phương ◽  
Nguyễn Hồng Trường ◽  
Trần Thúy Nga
Keyword(s):  

Thiếu máu là vấn đề dinh dưỡng toàn cầu ảnh hưởng tới sức khỏe phụ nữ tuổi sinh đẻ. Nghiên cứu mô tả cắt ngang trên 809 phụ nữ 15 – 35 tuổi tại tỉnh Sơn La nhằm mô tả tình trạng thiếu máu và một số yếu tố liên quan. Kết quả cho thấy tỷ lệ thiếu máu là 28,2%, ở mức trung bình có ý nghĩa sức khoẻ cộng đồng, trong đó mức độ vừa và nặng là 11,4%. Tỷ lệ thiếu máu ở nhóm 15 – 24 tuổi là 33,2% cao khác biệt so với nhóm 25 - 35 tuổi (24,0%). Hồi qui đa biến logistic cho thấy thiếu vitamin A tiền lâm sàng, điều kiện kinh tế hộ gia đình; tiền sử sảy thai liên quan với tình trạng thiếu máu (p < 0,05). Hồi qui đa biến tuyến tính cho thấy nồng độ kẽm và retinol huyết thanh tương quan tuyến tính với nồng độ hemoglobin (p < 0,01). Để phòng chống thiếu máu cần can thiệp phòng chống thiếu vi chất dinh dưỡng đặc biệt là vitamin A và kẽm.

Author(s):  
Odell T. Minick ◽  
Hidejiro Yokoo ◽  
Fawzia Batti

Vacuolated cells in the liver of young rats were studied by light and electron microscopy following the administration of vitamin A (200 units per gram of body weight). Their characteristics were compared with similar cells found in untreated animals.In rats given vitamin A, cells with vacuolated cytoplasm were a prominent feature. These cells were found mostly in a perisinusoidal location, although some appeared to be in between liver cells (Fig. 1). Electron microscopy confirmed their location in Disse's space adjacent to the sinusoid and in recesses between liver cells. Some appeared to be bordering the lumen of the sinusoid, but careful observation usually revealed a tenuous endothelial process separating the vacuolated cell from the vascular space. In appropriate sections, fenestrations in the thin endothelial processes were noted (Fig. 2, arrow).


Author(s):  
J.C.S. Kim ◽  
M.G. Jourden ◽  
E.S. Carlisle

Chronic exposure to nitrogen dioxide in rodents has shown that injury reaches a maximum after 24 hours, and a reparative adaptive phase follows (1). Damage occurring in the terminal bronchioles and proximal portions of the alveolar ducts in rats has been extensively studied by both light and electron microscopy (1).The present study was undertaken to compare the response of lung tissue to intermittent exposure to 10 ppm of nitrogen dioxide gas for 4 hours per week, while the hamsters were on a vitamin A deficient diet. Ultrastructural observations made from lung tissues obtained from non-gas exposed, hypovitaminosis A animals and gas exposed animals fed a regular commercially prepared diet have been compared to elucidate the specific effect of vitamin A on nitrogen dioxide gas exposure. The interaction occurring between vitamin A and nitrogen dioxide gas has not previously been investigated.


1958 ◽  
Vol 35 (4) ◽  
pp. 381-386 ◽  
Author(s):  
Sidney M. Fierst ◽  
Saul M. Feldman ◽  
Nathan Solomon ◽  
Abraham Lanosam
Keyword(s):  

1952 ◽  
Vol 20 (4) ◽  
pp. 587-594 ◽  
Author(s):  
Frederick Steigmann ◽  
Hans Popper ◽  
Hattie Dyniewicz ◽  
Irene Maxwell

1950 ◽  
Vol 34 (2) ◽  
pp. 413-424 ◽  
Author(s):  
J.M. Lewis ◽  
Sidney Q. Cohlan
Keyword(s):  

Author(s):  
Hoda Keshmiri Neghab ◽  
Mohammad Hasan Soheilifar ◽  
Gholamreza Esmaeeli Djavid

Abstract. Wound healing consists of a series of highly orderly overlapping processes characterized by hemostasis, inflammation, proliferation, and remodeling. Prolongation or interruption in each phase can lead to delayed wound healing or a non-healing chronic wound. Vitamin A is a crucial nutrient that is most beneficial for the health of the skin. The present study was undertaken to determine the effect of vitamin A on regeneration, angiogenesis, and inflammation characteristics in an in vitro model system during wound healing. For this purpose, mouse skin normal fibroblast (L929), human umbilical vein endothelial cell (HUVEC), and monocyte/macrophage-like cell line (RAW 264.7) were considered to evaluate proliferation, angiogenesis, and anti-inflammatory responses, respectively. Vitamin A (0.1–5 μM) increased cellular proliferation of L929 and HUVEC (p < 0.05). Similarly, it stimulated angiogenesis by promoting endothelial cell migration up to approximately 4 fold and interestingly tube formation up to 8.5 fold (p < 0.01). Furthermore, vitamin A treatment was shown to decrease the level of nitric oxide production in a dose-dependent effect (p < 0.05), exhibiting the anti-inflammatory property of vitamin A in accelerating wound healing. These results may reveal the therapeutic potential of vitamin A in diabetic wound healing by stimulating regeneration, angiogenesis, and anti-inflammation responses.


2013 ◽  
Vol 83 (2) ◽  
pp. 122-128 ◽  
Author(s):  
Cécile Renaud ◽  
Jacques Berger ◽  
Arnaud Laillou ◽  
Sylvie Avallone

Vitamin A deficiency is still one of the major public health problems in least developed countries. Fortification of vegetable oils is a strategy implemented worldwide to prevent this deficiency. For a fortification program to be effective, regular monitoring is necessary to control food quality in the producing units. The reference methods for vitamin A quantification are expensive and time-consuming. A rapid method should be useful for regular assessment of vitamin A in the oil industry. A portable device was compared to high-performance liquid chromatography (HPLC) for three plant oils (rapeseed, groundnut, and soya). The device presented a good linearity from 3 to 30 mg retinol equivalents per kg (mg RE.kg- 1). Its limits of detection and quantification were 3 mg RE.kg- 1 for groundnut and rapeseed oils and 4 mg RE.kg- 1 for soya oil. The intra-assay precision ranged from 1.48 % to 3.98 %, considered satisfactory. Accuracy estimated by the root mean squares error ranged from 3.99 to 5.49 and revealed a lower precision than HPLC (0.4 to 2.25). Although it offers less precision than HPLC, the device estimates quickly the vitamin A content of the tested oils from 3 or 4 to 15 mg RE.kg- 1.


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