The following vitreous mean ± standard
deviation (95% confidence interval of the mean) was
observed for each analyte: sodium, 146.7 ± 3.3
(145.4–148.0) mmol/L; potassium, 5.73 ± 0.86 (5.39–
6.08) mmol/L; chloride, 121.6 ± 2.6 (120.6–122.7)
mmol/L; calcium, 1.128 ± 0.518 (0.923–1.333) mmol/
L; magnesium, 0.900 ± 0.158 (0.838–0.962) mmol/L;
glucose, 2.97 ± 0.98 (2.58–3.36) mmol/L; lactate, 3.97
± 1.09 (3.54–4.40) mmol/L; osmolality, 289.5 ± 6.9
(286.6–292.5) mOsm/kg; BOHB, 0.0937 ± 0.0472
(0.0750–0.1124) mmol/L; copper, 0.519 ± 0.269
(0.412–0.625) μmol/L; zinc, 1.95 ± 1.09 (1.52–2.38)
μmol/L; selenium, 0.1035 ± 0.0276 (0.0923–0.1146)
μmol/L; iron, 3.11 ± 1.40 (2.56–3.66) μmol/L; ferritin,
19.5 ± 10.3 (15.5–23.6) μg/L; transferrin, 0.0878
± 0.0526 (0.0670–0.1086) g/L. Vitreous biochemistry
was not significantly different between male and female participants.
玻璃體每種分析物:
鈉、鉀、氯化物、鈣、鎂、葡萄糖、乳酸、銅、鋅、硒、鐵、運鐵蛋白
男性和女性參與者之間沒有顯著差異。
Table 4. Comparison of vitreous biochemical data between diabetic and non-diabetic participants
表4.糖尿病和非糖尿病參與者之間玻璃體生化數據的比較
由表可看出,糖尿病患鎂、鋅較低,銅、硒、葡萄糖、乳酸、鐵、運鐵蛋白較高。
維生素C也是合成透明質酸酶阻遏物的過程中必不可少的物質
透明質酸酶阻遏物可以使透明質酸酶喪失活性
透明質酸酶降解透明質酸
所以
維它命C可以防止降解透明質酸
鎂離子為透明質酸合成酶活性重要關鍵金屬離子
人體合成透明質酸需要鎂
透明質酸的製造需要有足夠的葡萄糖胺
葡萄糖胺以具有黏度的黏多醣存在於軟骨與結締組織的各處
錳參與黏多糖合成
The inhibitors of hyaluronidase present in mammalian sera, first described
half a century ago, have remained uncharacterized.
Because of increased interest in hyaluronidases and their hyaluronan substrate,
a study of these inhibitors was undertaken recently.
The predominant serum inhibitor is magnesium-dependent
and is eliminated by protease or chondroitinase digestion, and by heat.
透明質酸酶抑製劑,主要的血清抑製劑是鎂依賴性的。
Hyaluronidase-treated vitreous humor (n = 6) was found to decrease
the gel phase to 41% ± 9% (wt/wt; mean ± SD) compared with 81% ± 9%
in the control eyes (n = 8; P < 0.05).
發現透明質酸酶處理的玻璃體液將凝膠相降低至41%±9%
,而對照眼中為81%±9%。
節錄自https://iovs.arvojournals.org/article.aspx?articleid=2126431
Hyaluronic acid (HA) is the predominant glycosaminoglycan (GAG)
of the human vitreous. Interaction of this HA with vitreous collagen
is important for maintaining gel structure.
透明質酸(HA)是人玻璃體的主要糖胺聚醣(GAG)。
該HA與玻璃體膠原的相互作用對於保持凝膠結構是重要的。
The aim of this study was to determine whether hyaluronidase,
an endoglycosidase that degrades HA, was present in human vitreous.
這項研究的目的是確定透明質酸酶,一種降解HA的內切糖苷酶,是否存在於人類玻璃體內。
Hyaluronidase activity was detected in vitreous samples
from both post-mortem and biopsy specimens.
在死後和活檢標本的玻璃體樣品中檢測到透明質酸酶活性。
Hyaluronidase is present in the human vitreous.
透明質酸酶存在於人體玻璃體中。
總結以上:
玻璃體的透明質酸降解(分解)造成飛蚊症、黏性降低,是因為玻璃體液體中缺少抑制透明質酸酶活性物質鎂的緣故,維它命C及錳對於抑制透明質酸酶活性應該也有幫助。
含鎂高的食物(由多至少依序排列):海苔、松子、榛果、亞麻籽、南瓜子、甘草、小茴香、桑葚、芥末、核桃、黑芝麻、葵花籽、杏仁、蕎麥、菊花、黑豆
含錳最多的食物(由多至少依序排列):紅茶、綠茶、薑、黑芝麻、小麥胚芽、辣椒、肉桂、木耳、蓮子、核桃
(軍公教福利中心有售)
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