宋雨菊 桑鋒
[摘要] 目的 觀察更年滋腎湯合玉女酥對雌性去勢大鼠性激素E2、FSH、LH、及神經遞質5-HT、5-HTAA的影響,探討藥食合用對圍絕經期綜合征的療效及作用機制。方法 2015年10月—2016年4月,選取上海斯萊克實驗動物中心健康、12周齡、雌性未孕SD大鼠60只,隨機分為正常對照組、模型組、中藥(更年滋腎湯)組、食療(玉女酥)組、藥食合用組,每組12只。給藥(食)6周后,檢測指標:下丘腦、垂體、子宮、胸腺、脾臟重量系數變化;血清中E2、FSH、LH的含量變化;下丘腦5-HT和5-HTAA的含量變化。 結果 ①臟器重量系數:下丘腦、垂體各組間差異無統(tǒng)計學意義;子宮模型組(62.19±11.4)明顯低于對照組(149.60±8.23),藥食合用組(100.35±9.29)顯著高于模型組;胸腺模型組(89.36±7.48)明顯低于對照組(121.67±12.01),藥食合用組(115.72±12.57)顯著高于模型組;脾臟模型組(314.48±38.54)明顯低于對照組(357.57±35.87),藥食合用組(350.57±29.76)顯著高于模型組,差異有統(tǒng)計學意義(P<0.05)。②血清性激素水平:E2含量,模型組(9.46±1.05)pg/mL明顯低于對照組(13.97±1.14)pg/mL,中藥組(12.94±1.73)pg/mL、食療組(11.03±2.05)pg/mL、藥食合用組(13.15±2.17)pg/mL均高于模型組(P<0.05);FSH含量,模型組(7.46±1.05)mIU/mL明顯高于對照組(3.26±0.17)mIU/mL,中藥組(4.34±0.73)mIU/mL和藥食合用組(3.15±2.17)mIU/mL明顯低于模型組(P<0.05,P<0.01);LH含量,模型組(13.07±1.05)mIU/mL明顯高于對照組(7.74±1.12)mIU/mL,中藥組(9.86±1.52)mIU/mL和藥食合用組(7.83±1.07)mIU/mL明顯低于模型組(P<0.05,P<0.01)。③5-HT水平,模型組(0.742±0.067)μg/g明顯高于對照組(0.228±0.034)μg/g,中藥組(0.357±0.043)μg/g、藥食合用組(0.235±2.28)μg/g明顯低于模型組(P<0.05,P<0.01);5-HTAA水平,模型組(3.986±0.520)μg/g明顯高于對照組(1.109±0.230)μg/g,中藥組(1.553±0.310)μg/g、藥食合用組(1.211±0.270)μg/g明顯低于模型組(P<0.05,P<0.01)。結論 更年滋腎湯合玉女酥可通過影響雌性去勢大鼠性激素及神經遞質的含量,調節(jié)下丘腦-垂體-性腺軸功能,從而改善圍絕經期綜合征,藥食合用可發(fā)揮更好的效果。
[關鍵詞] 圍絕經期綜合征;下丘腦-垂體-性腺軸;更年滋腎湯合玉女酥
[中圖分類號] R4 [文獻標識碼] A [文章編號] 1674-0742(2017)07(c)-0005-04
[Abstract] Objective To observe the effect of menopause zishen tang and yunvshu on the sex hormones E2,FSH,LH and neurotransmitter 5-HT,5-HTAA of female gonadectomy rats and study the curative effect and function mechanism of medicine and food on the perimenopausal syndrome. Methods 60 cases of female un-pregnancy SD rats aged 12 weeks in the Shanghai Slrc Experimental Animal Center from October 2015 to April 2016 were selected and randomly divided into the normal control group, model group, TCM group, food therapy group and combined medicine and food group with 12 cases in each, after 6-week administration, the changes of weight of the hypothalamus, pituitary, uterus, thymus and spleen coefficient, changes of serum E2,FSH,LH contents and changes of contents of hypothalamus 5-HT and 5-HTAA were tested. Results The viscera weight coefficient: there were no obvious differences in the hypothalamus pituitary between groups, and the index in the uterus model group was obviously lower than that in the control group[(62.19±11.4) vs (149.60±8.23)], and the index in the combined group was obviously higher than that in the model group, which was (100.35±9.29), and the index in the thymus model group was obviously lower than that in the control group[(89.36±7.48) vs (121.67±12.01)], and the index in the combined group was (115.72±12.57), which was obviously higher than that in the model group, and the spleen model group was obviously lower than that in the control group, [(314.48±38.54) vs (357.57±35.87)], and the combined group was (350.57±29.76), which was obviously higher than that in the model group, and the differences were statistically significant(P<0.05), and the serum sex hormone level: E2 content in the model group was obviously lower than that in the control group[(9.46±1.05)pg/mL vs (13.97±1.14)pg/mL], and the index in the TCM group, food therapy group and combined group were respectively (12.94±1.73)pg/mL, (11.03±2.05)pg/mL and (13.15±2.17)pg/mL, which was higher than that in the model group(P<0.05), and the FSH content in the model group was obviously higher than that in the control group, [(7.46±1.05)mIU/L vs (3.26±0.17)mIU/L], and the index in the TCM group and combined group was respectively (4.34±0.73)mIU/L and (3.15±2.17)mIU/L, which was obviously lower than that in the model group(P<0.05,P<0.01), and the LH content in the model group was obviously higher than that in the control group, [(13.07±1.05)mIU/L vs (7.74±1.12)mIU/L], and the index in the TCM group and combined group was respectively (9.86±1.52)mIU/L and (7.83±1.07)mIU/L, which was obviously lower than that in the model group(P<0.05,P<0.01), and the 5-HT level in the model group was obviously higher than that in the control group[(0.742±0.067)μg/g vs(0.228±0.034)μg/g], and the index in the TCM group and combined group was respectively(0.357±0.043)μg/g and (0.235±2.28)μg/g, which was obviously lower than that in the model group(P<0.05,P<0.01), and the 5-HTAA level in the model group was obviously higher than that in the control group,[(3.986±0.520)μg/g vs(1.109±0.230)μg/g], and the index in the TCM group and combined group was respectively (1.553±0.310)μg/g and(1.211±0.270)μg/g, which was obviously lower than that in the control group(P<0.05,P<0.01). Conclusion The menopause zishen tang and yunvshu can adjust the hypothalamus-pituitary-gonadal axis function by affecting the hormone and neurotransmitter of female gonadectomy rats thus improving the perimenopausal syndrome and the combination of medicine and food can give play to a better effect.endprint
[Key words] Perimenopausal syndrome; Hypothalamus-pituitary-gonadal axis; Menopause zishen tang and yunvshu
圍絕經期綜合征是婦女在絕經前后由于卵巢功能減退,雌激素水平下降所致的以植物神經系統(tǒng)功能紊亂為主、伴有神經心理癥狀的一組癥候群,極大地影響了其身心健康、工作和家庭生活質量[1-3]?,F代醫(yī)學認為圍絕經期綜合征的發(fā)生,其病理機制除與內分泌失調有關外,還與神經、免疫系統(tǒng)的功能改變密切相關。中醫(yī)藥治療圍絕經期綜合征有著悠久歷史,療效好、不良反應小,有著獨特優(yōu)勢[4]。2015年10月—2016年4月,該研究選取上海斯萊克實驗動物中心健康、12周齡、雌性未孕SD大鼠60只,選擇治療圍絕經期綜合征的中醫(yī)經驗方更年滋腎湯,結合食療古方玉女酥,觀察藥食同用對圍絕經期綜合征動物模型下丘腦-垂體-性腺軸的影響,為圍絕經期綜合征的預防、治療及康復提供更多的理論和實驗依據,現報道如下。
1 對象與方法
1.1 實驗對象
健康12周齡雌性未孕SD大鼠,清潔級,體重(250±10)g,由上海斯萊克實驗動物中心提供。實驗前于動物房適應性喂養(yǎng)1周,室溫18~22℃,相對濕度65%。
1.2 實驗藥物與試劑
更年滋腎湯:仙茅、仙靈脾、巴戟天、炒黃柏、炒知母、補骨脂、當歸、制附子、生熟地、炙升麻、制黃精、炒棗仁。藥物及其水煎劑均由北京同仁堂提供。玉女酥:花生、紅棗、黃豆等量,連皮磨成粉,充分拌勻后混入鼠飼料中 (其中玉女酥占50%)。E2、FSH、LH ELISA檢測試劑盒,購自上海索寶科技有限公司。5-HT、5-HTAA標準品均購自美國 SIGMA 公司。
1.3 模型建立
去除雙側卵巢法制備圍絕經期大鼠模型[5],陰道涂片法觀察動情周期,陰道脫落細胞角化指數<50%且無動情周期性變化(符合更年期特征)者為造模成功大鼠。對照組大鼠手術暴露卵巢但不切除,然后雙層縫合手術傷口。
1.4 分組與給藥(食)
60只大鼠隨機分為:對照組、模型組、中藥組、食療組、藥食合用組。對照組和模型組灌胃生理鹽水,食療組按正常食量喂以含玉女酥的飼料,中藥組灌胃更年滋腎湯水煎液,藥食合用組用更年滋腎湯灌胃的同時喂以含玉女酥的飼料。以上各組動物均連續(xù)給藥(食)6周后,禁食取材。
1.5 指標檢測
用藥結束后,取材,檢測如下指標:①取出下丘腦、垂體、子宮、胸腺、脾臟,除盡脂肪等附屬組織,稱取各臟器濕重,換算成臟器重量系數(臟器重量(mg)/體重(g)×100,即每100 g體重的mg數)。②Elisa法檢測大鼠血清 LH、FSH、E2的含量。③參照文獻[5-6],檢測下丘腦神經遞質5-HT和5-HTAA含量。
1.6 統(tǒng)計方法
數據采用SPSS 17.0統(tǒng)計學軟件分析。所有數據結果均為計量資料,以均數±標準差(x±s)表示,組間比較采用單因素方差分析(one-way ANOVA),兩組間比較采用t-檢驗,P<0.05為差異有統(tǒng)計學意義。
2 結果
2.1 各組大鼠下丘腦、垂體、子宮、胸腺、脾臟重量系數的變化
結果顯示,下丘腦、垂體各組間差異無統(tǒng)計學意義(P>0.05);子宮、脾臟重量系數模型組顯著低于對照組,差異有統(tǒng)計學意義(P<0.01);各用藥組均高于模型組,差異有統(tǒng)計學意義(P<0.05),其中藥食合用組最為明顯(P<0.01)。胸腺重量系數模型組顯著低于對照組,差異有統(tǒng)計學意義 (P<0.05),與模型組比較,中藥組、藥食合用組胸腺重量系數明顯升高,差異有統(tǒng)計學意義 (P<0.05)。見表1。
2.2 各組大鼠血清中性激素E2、LH、FSH水平變化
結果顯示,與正常組比較,模型組大鼠血清E2含量明顯下降(P<0.05);與模型組比較,中藥組、食療組、藥食合用組大鼠血清E2明顯升高(P<0.05)。與正常組比較,模型組大鼠血清FSH、LH含量顯著升高(P<0.01);與模型組比較,中藥組、藥食合用組大鼠血清FSH、LH顯著降低(P<0.05,P<0.01)。見表2。
2.3 各組大鼠下丘腦神經遞質5-HT和5-HTAA水平變化
結果顯示,與正常組比較,模型組大鼠下丘腦組織5-HT、5-HTAA含量明顯升高,差異有統(tǒng)計學意義(P<0.01);與模型組比較,中藥組、藥食合用組下丘腦組織5-HT、5-HTAA顯著降低,差異有統(tǒng)計學意義(P<0.05,P<0.01)。見表3。
3 討論
中醫(yī)認為腎為人體先天之本,元氣之根,腎氣的盛衰關系著人體的生長、發(fā)育、生殖等變化。婦女圍絕經期,腎氣漸衰,天癸將竭,沖任二脈隨之虧虛,腎虛是圍絕經期綜合征的根本病機,根據中醫(yī)治病求本的原則采用的基本治法是以補腎為根本,使腎之陰陽趨于平衡[7-8]。更年滋腎湯在著名古方二仙湯的基礎上加減化裁而成,方中淫羊藿、仙茅為君藥,巴戟天、黃柏、知母、生地、熟地、補骨脂、制附子為臣藥,當歸、升麻、黃精、炒酸棗共為佐使藥。諸藥合用,共奏溫補腎陽、滋陰降火之功。玉女酥出于清代“玉女補乳酥”,由黃豆、花生、紅棗等量組成。食療與藥物治療相結合,相得益彰,藥借食威,食助藥力,藥食合用可發(fā)揮更好的效果,以藥食同用的方法防治疾病,是中醫(yī)學的突出特色之一。
在圍絕經期,卵巢來源的E2趨于減少,血中雌一孕激素水平降低,雌、孕激素負反饋減弱,引起垂體分泌FSH、LH增加,使正常的下丘腦-垂體-靶腺軸之間平衡失調,從而導致圍絕經期綜合征的發(fā)生[9]。該研究結果顯示,與正常大鼠比較,去勢大鼠血清E2含量明顯下降, FSH、LH含量明顯升高;在運用更年滋腎湯及玉女酥干預后,3種性激素的水平都有不同程度的改善,尤以藥食合用組效果明顯。5-HT是中樞神經系統(tǒng)的一種單胺類遞質,由色胺酸經色氨酸羥化酶及5-羥色胺酸脫氫酶作用而生成,同時又通過單胺氧化酶(MAO)分解成5-HIAA而從尿中排出,從而保證了機體這兩種遞質含量的代謝平衡。陳亞瓊等[10]證實人血漿雌激素可強烈的抑制MAO的活性,更年期婦女由于雌激素水平下降,MAO活性因而上升,導致5-HIAA含量增加。該研究結果顯示,與正常大鼠比較,圍絕經期綜合征模型大鼠下丘腦組織5-HT及5-HTAA含量明顯升高;運用更年滋腎湯及玉女酥干預后, 5-HT及5-HTAA降低顯著。
綜上所述,更年滋腎湯合玉女酥可通過影響雌性去勢大鼠性激素及神經遞質的含量,在一定程度改善衰退的下丘腦-垂體-性腺軸功能,從而改善圍絕經期綜合征,在圍絕經期綜合征的治療上,藥食合用是一種優(yōu)化的方法,藥借食威,食助藥力,藥食合用可發(fā)揮更好的效果。藥食合用發(fā)揮作用的途徑可能是:一方面更年滋腎湯直接作用于下丘腦的某些具有神經內分泌功能的神經元,調節(jié)單胺類神經遞質的合成與釋放;另一方面玉女酥先作用于內分泌系統(tǒng),通過調節(jié)體內E2的水平而間接影響神經遞質的代謝;也可能藥和食都同時具備這兩種作用,且具有協(xié)同效果,但確切的作用過程尚需進一步驗證。
[參考文獻]
[1] 錢莉.中醫(yī)綜合療法治療婦女圍絕經期綜合征效果觀察[J].臨床合理用藥,2017,10(3):89-90.
[2] 舒宏廣,付志紅.圍絕經期綜合征的中醫(yī)治療進展[J].實用中西醫(yī)結合臨床,2016,16(10):92-94.
[3] 馬堃,陳燕霞.中西醫(yī)治療圍絕經期綜合征策略的探討[J].中國中藥雜志,2015,40(20):3899-3906.
[4] 蔣彩榮,吳昆侖.圍絕經期綜合征中醫(yī)藥治療研究進展[J].山東中醫(yī)雜志,2016,35(12):1096-1020.
[5] 徐叔云,卞如濂,陳修.藥理實驗方法學[M].3版.北京:人民衛(wèi)生出版社,2003:3.
[6] 辛衛(wèi)云,白明,苗明三,等.淺析補腎陽中藥治療圍絕經期綜合征[J].中醫(yī)學報,2017,32(1):67-70.
[7] 朱玲桂.圍絕經期綜合征中醫(yī)證候分布規(guī)律及病機特點研究[D].蘭州:甘肅中醫(yī)藥大學,2016.
[8] 姚婷.補腎舒更湯配合利維愛治療圍絕經期綜合征腎陰陽兩虛證的臨床觀察[D].長沙:湖南中醫(yī)藥大學,2016.
[9] 李方鳳.低劑量雌激素替代療法對圍絕經期綜合征患者激素水平的影響[J].實用臨床醫(yī)藥雜志,2017,21(1):130-131.
[10] 陳亞瓊,呂小峰,黃艷紅.絕經后潮熱婦女血漿5-羥色胺前體及代謝產物水平的變化[J].中華婦產科雜志,2002, 37(12):726-728.
(收稿日期:2017-04-23)endprint